US20010023782A1 - Substrate on which ball grid array type electrical part is mounted and method for mounting ball grid array type electrical part on substrate - Google Patents
Substrate on which ball grid array type electrical part is mounted and method for mounting ball grid array type electrical part on substrate Download PDFInfo
- Publication number
- US20010023782A1 US20010023782A1 US09/855,620 US85562001A US2001023782A1 US 20010023782 A1 US20010023782 A1 US 20010023782A1 US 85562001 A US85562001 A US 85562001A US 2001023782 A1 US2001023782 A1 US 2001023782A1
- Authority
- US
- United States
- Prior art keywords
- substrate
- electrical part
- land
- ball grid
- type electrical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/73—Means for bonding being of different types provided for in two or more of groups H01L24/10, H01L24/18, H01L24/26, H01L24/34, H01L24/42, H01L24/50, H01L24/63, H01L24/71
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/498—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers
- H01L23/49811—Additional leads joined to the metallisation on the insulating substrate, e.g. pins, bumps, wires, flat leads
- H01L23/49816—Spherical bumps on the substrate for external connection, e.g. ball grid arrays [BGA]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
- H05K3/341—Surface mounted components
- H05K3/3431—Leadless components
- H05K3/3436—Leadless components having an array of bottom contacts, e.g. pad grid array or ball grid array components
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
- H01L2224/14—Structure, shape, material or disposition of the bump connectors prior to the connecting process of a plurality of bump connectors
- H01L2224/1405—Shape
- H01L2224/14051—Bump connectors having different shapes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/15—Structure, shape, material or disposition of the bump connectors after the connecting process
- H01L2224/16—Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
- H01L2224/161—Disposition
- H01L2224/16104—Disposition relative to the bonding area, e.g. bond pad
- H01L2224/16106—Disposition relative to the bonding area, e.g. bond pad the bump connector connecting one bonding area to at least two respective bonding areas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01004—Beryllium [Be]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01013—Aluminum [Al]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01033—Arsenic [As]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01068—Erbium [Er]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/111—Pads for surface mounting, e.g. lay-out
- H05K1/112—Pads for surface mounting, e.g. lay-out directly combined with via connections
- H05K1/113—Via provided in pad; Pad over filled via
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/09372—Pads and lands
- H05K2201/094—Array of pads or lands differing from one another, e.g. in size, pitch, thickness; Using different connections on the pads
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/09654—Shape and layout details of conductors covering at least two types of conductors provided for in H05K2201/09218 - H05K2201/095
- H05K2201/09781—Dummy conductors, i.e. not used for normal transport of current; Dummy electrodes of components
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to a substrate on which a BGA (Ball Grid Array) type electrical part is mounted, and a method for mounting the BGA type electrical part on the substrate.
- BGA Bit Grid Array
- a plurality of electrodes is mounted on a rear surface of a BGA electrical part.
- a plurality of lands is mounted on a front surface of a substrate on which the BGA electrical part is mounted.
- An array of the electrodes and an array of the lands are matched with each other.
- the electrode is connected to the land through solder. This connection enables the BGA electrical part to be fixed to the substrate.
- the mounting of the BGA electrical part on the substrate requires a countermeasure for protecting a crack caused by heat cycle stress.
- the mounting of the BGA electrical part requires a countermeasure for protecting a damage caused by external stress.
- Those countermeasures are done by using a curing agent or a resin adhesive (hereafter, merely referred to as an adhesive). If the adhesive is filled between the BGA electrical part and the substrate, it is possible to improve the bond strength between the BGA electrical part and the substrate.
- Increase in a mount density of the substrate causes an interval between the BGA electrical part and a peripheral part to be narrow. If the interval is narrow, the adhesive for the BGA electrical part comes in contact with the peripheral part. The adhesive disturbs the radiation from the peripheral part. The adhesive semi-permanently attaches the BGA electrical part and the peripheral part to the substrate. The BGA electrical part and the peripheral part are not easily dismounted from the substrate. If trouble is induced in the BGA electrical part and the peripheral part, it is impossible to replace the BGA electrical part and the peripheral part.
- It is an object of the present invention is to provide a substrate on which the BGA type electrical part is mounted and a method for mounting the electrical part on the substrate. On the substrate and in the method, the BGA electrical part together with the land is never stripped by the heat cycle stress from the substrate.
- a substrate on which a ball grid allay type electrical part is mounted includes a substrate body ( 2 ), a normal land ( 3 ), an integrated land ( 4 ) and connection reinforcement section ( 5 ).
- the substrate body ( 2 ) provided with a ball grid allay type electrical part.
- the connection reinforcement section ( 5 ) connects to the integrated land ( 4 ) to the substrate body ( 2 ).
- connection reinforcement section ( 5 ) is a through section which pierces the integrated land and the substrate body.
- connection reinforcement section ( 5 ) is a convexity section which pass through the integrated land to inside of the substrate body.
- the integrated land ( 4 ) has a surface area which is wider than a surface area of the normal land ( 3 ).
- the integrated land ( 4 ) is a grounding land supplying a ground potential.
- the integrated land ( 4 ) is a power supply land supplying a power potential.
- the integrated land ( 4 ) is a signal land supplying a data signal.
- connection reinforcement section ( 5 ) is a through pipe which pierces the integrated land and the substrate body from a front surface of the substrate body to a rear surface thereof.
- connection reinforcement section is a retiring shape section which pierces the integrated land and is embedded in the substrate body.
- a method of mounting ball grid array type electrical part on substrate includes connecting of a normal electrode ( 12 ) of a ball grid allay type electrical part to normal land.
- the method further includes connecting a plurality of connecting integrated terminals ( 13 ) of a ball grid allay type electrical part to an integrated land of a substrate body ( 2 ).
- the connecting of the normal electrode ( 12 ) the normal electrode ( 12 ) of a ball grid array type electrical part ( 10 ) is connected on a normal land ( 3 ) of a substrate body ( 2 ) via a connecting material ( 22 ).
- the plurality of integrated terminals ( 13 ) of the ball grid array type electrical part ( 10 ) is connected on an integrated land ( 4 ).
- the integrated land ( 4 ) is connected to a substrate body ( 2 ) by a connection reinforcement section ( 5 ).
- the connecting material ( 22 ) is made of a solder.
- connection reinforcement section ( 5 ) has a through pipe which pierces the integrated land ( 4 ) and the substrate body ( 2 ).
- the connecting material ( 22 ) is flowed into the through pipe.
- connection reinforcement section ( 5 ) has a retiring shape section which pierces the integrated land ( 4 ) and retires the substrate body ( 2 ).
- the connecting material ( 22 ) is flowed into the connection reinforcement section ( 5 ).
- a surface area of the integrated land ( 4 ) is wider than a surface area of the normal land ( 3 ).
- a ground potential for the ball grid array type electrical part ( 10 ) is applied to the integrated land ( 4 ).
- a power potential for the ball grid array type electrical part ( 10 ) is applied to the integrated land ( 4 ).
- a data signal for the ball grid array type electrical part ( 10 ) is supplied to the integrated land ( 4 ).
- connection reinforcement section ( 5 ) is a through pipe which pierces the integrated land ( 4 ) and the substrate body ( 2 ) from a front surface of the substrate body ( 2 ) to a rear surface thereof.
- connection reinforcement section ( 5 ) is are tiring shape section which pierces the integrated land and is embedded in the substrate body ( 2 ).
- FIG. 1 shows a surface of a substrate according to the present invention
- FIG. 2 shows an integrated land of the substrate according to the present invention
- FIG. 3 shows a rear of a BGA electrical part
- FIG. 4 shows a mount condition of the substrate according to the present invention.
- FIG. 5 shows a connection condition of the substrate according to the present invention.
- FIG. 1 shows a surface of a substrate in the present invention.
- a substrate 1 shown in FIG. 1 has a substrate body 2 .
- the substrate 1 has 33 normal lands 3 .
- the substrate 1 has four integrated lands 4 .
- Each of the integrated lands 4 has five connection reinforcement sections 5 .
- the substrate body 2 is an insulation plate having a wiring pattern on a surface thereof.
- the normal land 3 is fixed to the surface of the substrate body 2 .
- the normal land 3 is bonded to a signal line (not shown) mounted on the surface of the substrate body 2 .
- the integrated land 4 is fixed to the surface of the substrate body 2 .
- the integrated land 4 is bonded to a ground line (not shown) mounted on the surface of the substrate body 2 .
- the connection reinforcement section 5 is fixed to the integrated land 4 and the substrate body 2 .
- the connection reinforcement sections 5 are arranged along an outer edge of the integrated land 4 .
- the integrated land 4 is directly fixed to the surface of the substrate body 2 .
- the integrated land 4 is fixed through the connection reinforcement section 5 to the substrate body 2 .
- the normal land 3 is a conductor.
- the integrated land 4 is a conductor.
- the connection reinforcement section 5 is made of resin.
- FIG. 2 shows the integrated land according to the present invention.
- the connection reinforcement sections 5 are exposed on the surface of the integrated land 4 shown in FIG. 2.
- the connection reinforcement sections 5 are mounted at ends of the integrated land 4 .
- the integrated electrode of the BGA electrical part is not opposite to the connection reinforcement section 5 .
- the surface on the integrated land 4 has an area to which the four integrated electrodes are opposite.
- the surface of the integrated land 4 has the area equal to or four times the area of the normal land 3 .
- FIG. 3 shows an electrode array of the BGA electrical part.
- a BGA electrical part 10 shown in FIG. 3 has a part substrate body 11 , and has 33 normal electrodes 12 .
- the BGA electrical part 10 has 16 integrated electrodes 13 .
- the normal electrodes 12 are fixed to a rear of the part substrate body 11 .
- the integrated electrodes 13 are fixed to the rear of the part substrate body 11 .
- Each of the normal electrodes 11 is connected to an inner circuit (not shown) of the BGA electrical part 10 .
- Each of the integrated electrodes 12 is connected to an inner circuit (not shown) of the BGA electrical part 10 .
- the normal electrode 11 has an array matched with an array of the normal land 3 (FIG. 1).
- the integrated electrode 12 has an array matched with that of the integrated land 4 (FIG. 1).
- the normal electrode 11 is used to transmit a signal.
- the normal electrode 11 is used to apply a power supply voltage.
- the integrated electrode 12 is used to apply a ground potential.
- FIG. 4 shows a mount condition according to the present invention.
- the substrate 1 shown in FIG. 4 is shown in FIG. 1.
- the BGA electrical part 10 shown in FIG. 4 is shown in FIG. 3.
- the normal land 3 on the substrate 1 is opposite to the normal electrode 11 of the BGA electrical part 10 .
- the integrated land 4 on the substrate 1 is opposite to the integrated electrode 12 of the BGA electrical part 10 .
- One integrated land 4 is opposite to the four integrated electrodes 12 .
- FIG. 5 shows a solder connection condition according to the present invention.
- FIG. 5 shows an end surface in which the configuration of FIG. 4 is cut in an A-A direction.
- the normal land 3 of the substrate 1 is fixed to the surface of the substrate body 2 .
- the bond land 4 is fixed to the surface of the substrate body 2 .
- the connection reinforcement section 5 is fixed to the bond land 4 and the substrate body 2 .
- the bond land 4 is directly fixed to the surface of the substrate body 2 .
- the integrated land 4 is fixed through the connection reinforcement section 5 to the substrate body 2 .
- the normal electrode 12 of the BGA electrical part 10 is fixed to the part substrate body 11 .
- the integrated electrode 13 of the BGA electrical part 10 is fixed to the part substrate body 11 .
- the normal electrode 12 is opposite to the normal land 3 .
- the integrated electrode 13 is opposite to the integrated land 3 .
- the normal electrode 12 is connected through a solder 21 to the normal land 3 .
- the integrated electrode 13 is connected through a solder 22 to the integrated land 4 .
- Four integrated electrodes 13 are connected to one integrated land 4 .
- the solder 22 is connected to the entire surface of the integrated land 4 .
- the solder 22 is filled between four integrated lands 13 .
- Bond strength between the integrated electrode 13 and the integrated land 13 is stronger than bond strength between four normal electrodes 12 and four normal lands 3 .
- a bond strength between the integrated land 4 and the substrate body 2 is represented by the sum of a bond strength at which the integrated land 4 is directly fixed to the substrate body 2 and a bond strength at which the integrated land 4 is fixed through the connection reinforcement section 5 to the substrate body 2 .
- a force required to pull out the connection reinforcement section 5 from the substrate body 2 is stronger than a force required to strip the integrated land 4 from the substrate body 2 . It is possible to largely improve bond strength between the substrate 1 and the BGA electrical part 10 .
- connection reinforcement section 5 penetrates the substrate body 2 and the integrated land 4 (a penetration type via).
- the connection reinforcement section 5 may be designed such that a part thereof penetrates the substrate body 2 and/or the integrated land 4 (a blind via).
- the connection reinforcement section 5 may be a penetration tube of a conductor.
- the penetration tube may be integrated with the integrated land 4 .
- the connection reinforcement section 5 may be a concave member of a conductor.
- the concave member may be integrated with the integrated land 4 .
- the solder on the integrated land 4 is filled in the penetration tube and the concave member.
- the four integrated lands 4 are mounted at Four Corners of the substrate 1 .
- the number of integrated lands 4 and the arrangement positions thereof are not limited in particular.
- One integrated land may be mounted at a center of the substrate 1 .
- the four integrated electrodes 13 are connected to one integrated land 4 .
- the number of integrated electrodes 13 connected to the integrated land 4 is not limited in particular. Desirably, it is at least two. The number may be one if the size of the integrated electrode 13 is larger than that of the normal electrode 12 .
- connection reinforcement sections 5 are mounted in one integrated land 4 .
- the number of connection reinforcement sections 5 is not limited in particular. It may be one.
- connection reinforcement section 5 is different in material from the integrated land 4 and the substrate body 2 .
- connection reinforcement section 5 may have the same material as the integrated land 4 or the substrate body 2 .
- connection reinforcement section 5 may have the emboss structure that it is mounted on a land side contact surface and a substrate body side contact surface with which the integrated land 4 and the substrate body 2 are in contact. This emboss structure is formed such that the substrate body side contact surface and the land side contact surface are matched with each other.
- the present invention can protect the crack caused by the heat cycle stress and the damage caused by the external stress without using the adhesive.
- the present invention can avoid the BGA electrical part together with the land from being stripped from the substrate.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Structures For Mounting Electric Components On Printed Circuit Boards (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
In a substrate on which a ball grid allay type electrical part is mounted includes a substrate body, a normal land, an integrated land and a connection reinforcement section. The substrate body provided with a ball grid allay type electrical part. On the normal land, a normal electrode of the ball grid array type electrical part is connected. On the integrated land, a plurality of integrated electrodes of the ball grid allay type electrical part is connected. The connection reinforcement section connects to the integrated land to the substrate body
Description
- 1. Field of the Invention
- The present invention relates to a substrate on which a BGA (Ball Grid Array) type electrical part is mounted, and a method for mounting the BGA type electrical part on the substrate.
- 2. Description of the Related Art
- A plurality of electrodes is mounted on a rear surface of a BGA electrical part. A plurality of lands is mounted on a front surface of a substrate on which the BGA electrical part is mounted. An array of the electrodes and an array of the lands are matched with each other. The electrode is connected to the land through solder. This connection enables the BGA electrical part to be fixed to the substrate.
- The technique for mounting the BGA electrical part on the substrate is disclosed in Japanese Laid Open Patent Applications JP-A-H7-147481, JP-A-H8125325, JP-A-H9-45805, JP-A-H10-163371 and JP-A-H11-74637 and Japanese Patent Application Filing Number H10-346025 corresponding to U.S. patent application Ser. No. 09/435,448. Those documents disclose the technique for connecting one land to one electrode.
- The mounting of the BGA electrical part on the substrate requires a countermeasure for protecting a crack caused by heat cycle stress. The mounting of the BGA electrical part requires a countermeasure for protecting a damage caused by external stress. Those countermeasures are done by using a curing agent or a resin adhesive (hereafter, merely referred to as an adhesive). If the adhesive is filled between the BGA electrical part and the substrate, it is possible to improve the bond strength between the BGA electrical part and the substrate.
- Increase in a mount density of the substrate causes an interval between the BGA electrical part and a peripheral part to be narrow. If the interval is narrow, the adhesive for the BGA electrical part comes in contact with the peripheral part. The adhesive disturbs the radiation from the peripheral part. The adhesive semi-permanently attaches the BGA electrical part and the peripheral part to the substrate. The BGA electrical part and the peripheral part are not easily dismounted from the substrate. If trouble is induced in the BGA electrical part and the peripheral part, it is impossible to replace the BGA electrical part and the peripheral part.
- The applicant already filed a patent with regard to an invention for improving bond strength without using an adhesive (Japanese Patent Application Filing Number H10-346025). This application discloses a substrate (printed circuit substrate) is provided with a normal land to which a normal electrode of a BGA electrical part is bonded and an integrated land to which a plurality of integrated electrodes of the electrical part are bonded. Bond strength between the BGA electrical part and the electrode is stronger than bond strength between the substrate and the land. Bond strength between the substrate and the BGA electrical part depends on the bond strength between the substrate and the land. Its bond strength has a value that has no influence on a usual usage environment. The occurrences of a strong force for stripping the BGA electrical part from the substrate causes the BGA electrical part together with the land to be stripped from the substrate.
- It is an object of the present invention is to provide a substrate on which the BGA type electrical part is mounted and a method for mounting the electrical part on the substrate. On the substrate and in the method, the BGA electrical part together with the land is never stripped by the heat cycle stress from the substrate.
- In order to achieve an aspect of the present invention, a substrate on which a ball grid allay type electrical part is mounted includes a substrate body (2), a normal land (3), an integrated land (4) and connection reinforcement section (5). The substrate body (2) provided with a ball grid allay type electrical part. On the normal land (3), a normal electrode (12) of the ball grid array type electrical part (10) is connected. On the integrated land (4), a plurality of integrated electrodes (13) of the ball grid allay type electrical part (10) is connected. The connection reinforcement section (5) connects to the integrated land (4) to the substrate body (2).
- In the above substrate, the connection reinforcement section (5) is a through section which pierces the integrated land and the substrate body.
- In the above substrate, the connection reinforcement section (5) is a convexity section which pass through the integrated land to inside of the substrate body.
- In the above substrate, the integrated land (4) has a surface area which is wider than a surface area of the normal land (3).
- In the above substrate, the integrated land (4) is a grounding land supplying a ground potential.
- In the above substrate, the integrated land (4) is a power supply land supplying a power potential.
- In the above substrate, the integrated land (4) is a signal land supplying a data signal.
- In the above substrate, the connection reinforcement section (5) is a through pipe which pierces the integrated land and the substrate body from a front surface of the substrate body to a rear surface thereof.
- In the above substrate, the connection reinforcement section is a retiring shape section which pierces the integrated land and is embedded in the substrate body.
- In order to achieve an aspect of the present invention, a method of mounting ball grid array type electrical part on substrate includes connecting of a normal electrode (12) of a ball grid allay type electrical part to normal land. The method further includes connecting a plurality of connecting integrated terminals (13) of a ball grid allay type electrical part to an integrated land of a substrate body (2). In the connecting of the normal electrode (12), the normal electrode (12) of a ball grid array type electrical part (10) is connected on a normal land (3) of a substrate body (2) via a connecting material (22). In the connecting of the plurality of integrated terminals (13), the plurality of integrated terminals (13) of the ball grid array type electrical part (10) is connected on an integrated land (4). The integrated land (4) is connected to a substrate body (2) by a connection reinforcement section (5).
- In the above method, the connecting material (22) is made of a solder.
- In the above method, the connection reinforcement section (5) has a through pipe which pierces the integrated land (4) and the substrate body (2). The connecting material (22) is flowed into the through pipe.
- In the above method, the connection reinforcement section (5) has a retiring shape section which pierces the integrated land (4) and retires the substrate body (2). The connecting material (22) is flowed into the connection reinforcement section (5).
- In the above method, a surface area of the integrated land (4) is wider than a surface area of the normal land (3).
- In the above method, a ground potential for the ball grid array type electrical part (10) is applied to the integrated land (4).
- In the above method, a power potential for the ball grid array type electrical part (10) is applied to the integrated land (4).
- In the above method, a data signal for the ball grid array type electrical part (10) is supplied to the integrated land (4).
- In the above method, the connection reinforcement section (5) is a through pipe which pierces the integrated land (4) and the substrate body (2) from a front surface of the substrate body (2) to a rear surface thereof.
- In the above method, the connection reinforcement section (5) is are tiring shape section which pierces the integrated land and is embedded in the substrate body (2).
- FIG. 1 shows a surface of a substrate according to the present invention;
- FIG. 2 shows an integrated land of the substrate according to the present invention;
- FIG. 3 shows a rear of a BGA electrical part;
- FIG. 4 shows a mount condition of the substrate according to the present invention; and
- FIG. 5 shows a connection condition of the substrate according to the present invention.
- FIG. 1 shows a surface of a substrate in the present invention. A
substrate 1 shown in FIG. 1 has asubstrate body 2. Thesubstrate 1 has 33 normal lands 3. Thesubstrate 1 has fourintegrated lands 4. Each of theintegrated lands 4 has fiveconnection reinforcement sections 5. - The
substrate body 2 is an insulation plate having a wiring pattern on a surface thereof. Thenormal land 3 is fixed to the surface of thesubstrate body 2. Thenormal land 3 is bonded to a signal line (not shown) mounted on the surface of thesubstrate body 2. Theintegrated land 4 is fixed to the surface of thesubstrate body 2. Theintegrated land 4 is bonded to a ground line (not shown) mounted on the surface of thesubstrate body 2. Theconnection reinforcement section 5 is fixed to theintegrated land 4 and thesubstrate body 2. Theconnection reinforcement sections 5 are arranged along an outer edge of theintegrated land 4. Theintegrated land 4 is directly fixed to the surface of thesubstrate body 2. Theintegrated land 4 is fixed through theconnection reinforcement section 5 to thesubstrate body 2. - The
normal land 3 is a conductor. Theintegrated land 4 is a conductor. Theconnection reinforcement section 5 is made of resin. - FIG. 2 shows the integrated land according to the present invention. The
connection reinforcement sections 5 are exposed on the surface of theintegrated land 4 shown in FIG. 2. Theconnection reinforcement sections 5 are mounted at ends of theintegrated land 4. The integrated electrode of the BGA electrical part is not opposite to theconnection reinforcement section 5. The surface on theintegrated land 4 has an area to which the four integrated electrodes are opposite. The surface of theintegrated land 4 has the area equal to or four times the area of thenormal land 3. - FIG. 3 shows an electrode array of the BGA electrical part. A BGA
electrical part 10 shown in FIG. 3 has apart substrate body 11, and has 33normal electrodes 12. The BGAelectrical part 10 has 16 integratedelectrodes 13. - The
normal electrodes 12 are fixed to a rear of thepart substrate body 11. Theintegrated electrodes 13 are fixed to the rear of thepart substrate body 11. - Each of the
normal electrodes 11 is connected to an inner circuit (not shown) of the BGAelectrical part 10. Each of theintegrated electrodes 12 is connected to an inner circuit (not shown) of the BGAelectrical part 10. - The
normal electrode 11 has an array matched with an array of the normal land 3 (FIG. 1). Theintegrated electrode 12 has an array matched with that of the integrated land 4 (FIG. 1). - The
normal electrode 11 is used to transmit a signal. Thenormal electrode 11 is used to apply a power supply voltage. Theintegrated electrode 12 is used to apply a ground potential. - FIG. 4 shows a mount condition according to the present invention. The
substrate 1 shown in FIG. 4 is shown in FIG. 1. The BGAelectrical part 10 shown in FIG. 4 is shown in FIG. 3. - The
normal land 3 on thesubstrate 1 is opposite to thenormal electrode 11 of the BGAelectrical part 10. Theintegrated land 4 on thesubstrate 1 is opposite to theintegrated electrode 12 of the BGAelectrical part 10. Oneintegrated land 4 is opposite to the fourintegrated electrodes 12. - FIG. 5 shows a solder connection condition according to the present invention. FIG. 5 shows an end surface in which the configuration of FIG. 4 is cut in an A-A direction.
- The
normal land 3 of thesubstrate 1 is fixed to the surface of thesubstrate body 2. Thebond land 4 is fixed to the surface of thesubstrate body 2. Theconnection reinforcement section 5 is fixed to thebond land 4 and thesubstrate body 2. Thebond land 4 is directly fixed to the surface of thesubstrate body 2. Theintegrated land 4 is fixed through theconnection reinforcement section 5 to thesubstrate body 2. - The
normal electrode 12 of the BGAelectrical part 10 is fixed to thepart substrate body 11. Theintegrated electrode 13 of the BGAelectrical part 10 is fixed to thepart substrate body 11. - The
normal electrode 12 is opposite to thenormal land 3. Theintegrated electrode 13 is opposite to theintegrated land 3. - The
normal electrode 12 is connected through asolder 21 to thenormal land 3. Theintegrated electrode 13 is connected through asolder 22 to theintegrated land 4. Fourintegrated electrodes 13 are connected to oneintegrated land 4. Thesolder 22 is connected to the entire surface of theintegrated land 4. Thesolder 22 is filled between fourintegrated lands 13. - Bond strength between the
integrated electrode 13 and theintegrated land 13 is stronger than bond strength between fournormal electrodes 12 and fournormal lands 3. A bond strength between theintegrated land 4 and thesubstrate body 2 is represented by the sum of a bond strength at which theintegrated land 4 is directly fixed to thesubstrate body 2 and a bond strength at which theintegrated land 4 is fixed through theconnection reinforcement section 5 to thesubstrate body 2. A force required to pull out theconnection reinforcement section 5 from thesubstrate body 2 is stronger than a force required to strip theintegrated land 4 from thesubstrate body 2. It is possible to largely improve bond strength between thesubstrate 1 and the BGAelectrical part 10. - In the embodiment, the
connection reinforcement section 5 penetrates thesubstrate body 2 and the integrated land 4 (a penetration type via). Theconnection reinforcement section 5 may be designed such that a part thereof penetrates thesubstrate body 2 and/or the integrated land 4 (a blind via). Theconnection reinforcement section 5 may be a penetration tube of a conductor. The penetration tube may be integrated with theintegrated land 4. Theconnection reinforcement section 5 may be a concave member of a conductor. The concave member may be integrated with theintegrated land 4. The solder on theintegrated land 4 is filled in the penetration tube and the concave member. - In the embodiment, the four
integrated lands 4 are mounted at Four Corners of thesubstrate 1. The number ofintegrated lands 4 and the arrangement positions thereof are not limited in particular. One integrated land may be mounted at a center of thesubstrate 1. - In the embodiment, the four
integrated electrodes 13 are connected to oneintegrated land 4. The number ofintegrated electrodes 13 connected to theintegrated land 4 is not limited in particular. Desirably, it is at least two. The number may be one if the size of theintegrated electrode 13 is larger than that of thenormal electrode 12. - In the embodiment, the five
connection reinforcement sections 5 are mounted in oneintegrated land 4. However, the number ofconnection reinforcement sections 5 is not limited in particular. It may be one. - In the embodiment, the
connection reinforcement section 5 is different in material from theintegrated land 4 and thesubstrate body 2. However, theconnection reinforcement section 5 may have the same material as theintegrated land 4 or thesubstrate body 2. - The
connection reinforcement section 5 may have the emboss structure that it is mounted on a land side contact surface and a substrate body side contact surface with which theintegrated land 4 and thesubstrate body 2 are in contact. This emboss structure is formed such that the substrate body side contact surface and the land side contact surface are matched with each other. - The present invention can protect the crack caused by the heat cycle stress and the damage caused by the external stress without using the adhesive. The present invention can avoid the BGA electrical part together with the land from being stripped from the substrate.
Claims (19)
1. A substrate on which a ball grid allay type electrical part is mounted comprising:
a substrate body provided with a ball grid allay type electrical part;
a normal land connected to a normal electrode of the ball grid array type electrical part;
an integrated land connected to a plurality of integrated electrodes of the ball grid allay type electrical part; and
a connection reinforcement section reinforcing connection of the integrated land to the substrate body.
2. A substrate on which a ball grid allay type electrical part is mounted as claimed in ,
claim 1
wherein the connection reinforcement section is a through section which pierces the integrated land and the substrate body.
3. A substrate on which a ball grid allay type electrical part is mounted as claimed in ,
claim 1
wherein the connection reinforcement section is a convexity section which passes through the integrated land to inside of the substrate body.
4. A substrate on which a ball grid allay type electrical part is mounted as claimed in ,
claim 1
wherein the integrated land has a surface area which is wider than a surface area of the normal land.
5. A substrate on which a ball grid allay type electrical part is mounted as claimed in ,
claim 1
wherein the integrated land is a grounding land supplying a ground potential.
6. A substrate on which a ball grid allay type electrical part is mounted as claimed in ,
claim 1
wherein the integrated land is a power supply land supplying a power potential.
7. A substrate on which a ball grid allay type electrical part is mounted as claimed in ,
claim 1
wherein the integrated land is a signal land supplying a data signal.
8. A substrate on which a ball grid allay type electrical part is mounted as claimed in ,
claim 1
wherein the connection reinforcement section is a through pipe which pierces the integrated land and the substrate body from a front surface of the substrate body to a rear surface thereof.
9. A substrate on which a ball grid allay type electrical part is mounted as claimed in ,
claim 1
wherein the connection reinforcement section is a retiring shape section which pierces the integrated land and is embedded in the substrate body.
10. A method of mounting ball grid array type electrical part to substrate comprising:
connecting a normal electrode of a ball grid array type electrical part to a normal land via a connecting material; and
connecting a plurality of integrated terminals of the ball grid array type electrical part to an integrated land which is connected to a substrate body by a connection reinforcement section.
11. A method of mounting ball grid array type electrical part on substrate as claimed in ,
claim 10
wherein the connecting material is made of a solder.
12. A method of mounting ball grid array type electrical part on substrate as claimed in ,
claim 10
wherein the connection reinforcement section has a through pipe which pierces the integrated land and the substrate body; and
the connecting material is flowed into the through pipe.
13. A method of mounting ball grid array type electrical part on substrate as claimed in ,
claim 10
wherein the connection reinforcement section has a retiring shape section which pass through the integrated land to inside of the substrate body; and
the connecting material is flowed into the reinforcement section.
14. A method of mounting ball grid array type electrical part on substrate as claimed in ,
claim 10
wherein a surface area of the integrated land is wider than a surface area of the normal land.
15. A method of mounting ball grid array type electrical part on substrate as claimed in ,
claim 10
wherein a ground potential for the ball grid array type electrical part is supplied to the integrated land.
16. A method of mounting ball grid array type electrical part on substrate as claimed in ,
claim 10
wherein a power potential for the ball grid array type electrical part is supplied to the integrated land.
17. A method of mounting ball grid array type electrical part on substrate as claimed in ,
claim 10
wherein a data signal for the ball grid array type electrical part is supplied to the integrated land.
18. A method of mounting ball grid array type electrical part on substrate as claimed in ,
claim 10
wherein the connection reinforcement section is a through pipe which pierces the integrated land and the substrate body from a front surface of the substrate body to a rear surface thereof.
19. A method of mounting ball grid array type electrical part on substrate as claimed in ,
claim 10
wherein the connection reinforcement section is a retiring shape section which pierces the integrated land and is embedded in the substrate body.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/855,620 US20010023782A1 (en) | 1999-08-27 | 2001-05-16 | Substrate on which ball grid array type electrical part is mounted and method for mounting ball grid array type electrical part on substrate |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24129499A JP3343730B2 (en) | 1999-08-27 | 1999-08-27 | Mounting method of mounting board and electric component |
JP241294/1999 | 1999-08-27 | ||
US09/635,478 US6346679B1 (en) | 1999-08-27 | 2000-08-08 | Substrate on which ball grid array type electrical part is mounted and method for mounting ball grid array type electrical part on substrate |
US09/855,620 US20010023782A1 (en) | 1999-08-27 | 2001-05-16 | Substrate on which ball grid array type electrical part is mounted and method for mounting ball grid array type electrical part on substrate |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/635,478 Division US6346679B1 (en) | 1999-08-27 | 2000-08-08 | Substrate on which ball grid array type electrical part is mounted and method for mounting ball grid array type electrical part on substrate |
Publications (1)
Publication Number | Publication Date |
---|---|
US20010023782A1 true US20010023782A1 (en) | 2001-09-27 |
Family
ID=17072143
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/635,478 Expired - Fee Related US6346679B1 (en) | 1999-08-27 | 2000-08-08 | Substrate on which ball grid array type electrical part is mounted and method for mounting ball grid array type electrical part on substrate |
US09/855,620 Abandoned US20010023782A1 (en) | 1999-08-27 | 2001-05-16 | Substrate on which ball grid array type electrical part is mounted and method for mounting ball grid array type electrical part on substrate |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/635,478 Expired - Fee Related US6346679B1 (en) | 1999-08-27 | 2000-08-08 | Substrate on which ball grid array type electrical part is mounted and method for mounting ball grid array type electrical part on substrate |
Country Status (5)
Country | Link |
---|---|
US (2) | US6346679B1 (en) |
JP (1) | JP3343730B2 (en) |
CN (1) | CN1153284C (en) |
AU (1) | AU762555B2 (en) |
GB (1) | GB2358735B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1471574A2 (en) * | 2003-04-24 | 2004-10-27 | Shinko Electric Industries Co., Ltd. | Wiring substrate and electronic parts packaging structure |
US20050001296A1 (en) * | 2003-07-01 | 2005-01-06 | Northrop Grumman Corporation | Ultra wideband BGA |
WO2005013359A1 (en) * | 2003-07-31 | 2005-02-10 | Matsushita Electric Industrial Co., Ltd. | Semiconductor device |
EP1548825A2 (en) * | 2003-12-24 | 2005-06-29 | Seiko Epson Corporation | Semiconductor device, manufacturing method thereof and electronic equipment |
US20050164526A1 (en) * | 2004-01-28 | 2005-07-28 | International Business Machines Corporation | High performance interposer for a chip package using deformable button contacts |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4311774B2 (en) * | 1998-03-11 | 2009-08-12 | 富士通株式会社 | Electronic component package and printed wiring board |
US6927491B1 (en) * | 1998-12-04 | 2005-08-09 | Nec Corporation | Back electrode type electronic part and electronic assembly with the same mounted on printed circuit board |
US6509530B2 (en) * | 2001-06-22 | 2003-01-21 | Intel Corporation | Via intersect pad for electronic components and methods of manufacture |
US6730860B2 (en) * | 2001-09-13 | 2004-05-04 | Intel Corporation | Electronic assembly and a method of constructing an electronic assembly |
US6566611B2 (en) | 2001-09-26 | 2003-05-20 | Intel Corporation | Anti-tombstoning structures and methods of manufacture |
US6803527B2 (en) * | 2002-03-26 | 2004-10-12 | Intel Corporation | Circuit board with via through surface mount device contact |
JP3978369B2 (en) * | 2002-05-20 | 2007-09-19 | アルプス電気株式会社 | High frequency module mounting structure |
US6787920B2 (en) * | 2002-06-25 | 2004-09-07 | Intel Corporation | Electronic circuit board manufacturing process and associated apparatus |
US6762495B1 (en) * | 2003-01-30 | 2004-07-13 | Qualcomm Incorporated | Area array package with non-electrically connected solder balls |
TWI233682B (en) * | 2003-08-22 | 2005-06-01 | Advanced Semiconductor Eng | Flip-chip package, semiconductor chip with bumps, and method for manufacturing semiconductor chip with bumps |
JP3730644B2 (en) * | 2003-09-11 | 2006-01-05 | ローム株式会社 | Semiconductor device |
US7612296B2 (en) * | 2004-08-31 | 2009-11-03 | Synergy Microwave Corporation | Visually inspectable surface mount device pad |
US7064279B2 (en) * | 2004-09-23 | 2006-06-20 | Motorola, Inc. | Circuit board having an overlapping via |
JP2006344824A (en) * | 2005-06-09 | 2006-12-21 | Nec Electronics Corp | Semiconductor device and method for manufacturing semiconductor device |
US7456498B2 (en) * | 2006-08-18 | 2008-11-25 | Lsi Logic Corporation | Integrated circuit package and system interface |
JP5350604B2 (en) * | 2007-05-16 | 2013-11-27 | スパンション エルエルシー | Semiconductor device and manufacturing method thereof |
JP2009135150A (en) * | 2007-11-28 | 2009-06-18 | Toshiba Corp | Printed circuit board, manufacturing method of printed circuit board, and electronic appliance |
KR20120032293A (en) * | 2010-09-28 | 2012-04-05 | 삼성전자주식회사 | Semiconductor package |
JP2012216642A (en) * | 2011-03-31 | 2012-11-08 | Toshiba Corp | Electronic apparatus and substrate assembly |
CN103814439B (en) * | 2011-09-09 | 2016-10-19 | 株式会社村田制作所 | Module substrate |
US9343397B2 (en) | 2014-02-27 | 2016-05-17 | Infineon Technologies Ag | Method of connecting a semiconductor package to a board |
JP6544981B2 (en) * | 2015-04-20 | 2019-07-17 | ローム株式会社 | Printed wiring board |
CN105789175A (en) * | 2016-04-20 | 2016-07-20 | 广东工业大学 | FPBGA packaging substrate for radio frequency electric appliance |
EP3340293A1 (en) * | 2016-12-20 | 2018-06-27 | Siemens Aktiengesellschaft | Semiconductor module with support structure on the bottom |
US10510722B2 (en) * | 2017-06-20 | 2019-12-17 | Taiwan Semiconductor Manufacturing Company Ltd. | Semiconductor device and method for manufacturing the same |
CN212064501U (en) * | 2020-03-13 | 2020-12-01 | 华为技术有限公司 | Circuit board structure and electronic equipment |
JP2022011066A (en) * | 2020-06-29 | 2022-01-17 | 日本電気株式会社 | Quantum device |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3371734D1 (en) | 1983-02-23 | 1987-06-25 | Ibm Deutschland | Process for the production of metallic layers adhering to plastic supports |
US4867839A (en) | 1987-09-04 | 1989-09-19 | Shinko Electric Industries Co., Ltd. | Process for forming a circuit substrate |
US5011066A (en) * | 1990-07-27 | 1991-04-30 | Motorola, Inc. | Enhanced collapse solder interconnection |
EP0590635B1 (en) | 1992-09-29 | 1996-07-17 | Matsushita Electric Industrial Co., Ltd. | A method for producing a multi-layered printed wiring board |
US5489750A (en) * | 1993-03-11 | 1996-02-06 | Matsushita Electric Industrial Co., Ltd. | Method of mounting an electronic part with bumps on a circuit board |
JPH07147481A (en) | 1993-11-25 | 1995-06-06 | Hitachi Ltd | Method of mounting electronic part |
JP2916086B2 (en) | 1994-10-28 | 1999-07-05 | 株式会社日立製作所 | Electronic component mounting method |
JPH0945805A (en) | 1995-07-31 | 1997-02-14 | Fujitsu Ltd | Wiring board, semiconductor device, method for removing the semiconductor device from wiring board, and manufacture of semiconductor device |
US6142609A (en) * | 1995-08-01 | 2000-11-07 | Brother Kogyo Kabushiki Kaisha | End portion structure for connecting leads of flexible printed circuit board |
JPH1070153A (en) * | 1996-08-26 | 1998-03-10 | Hitachi Ltd | Method for connecting electronic component |
JPH10163371A (en) | 1996-11-26 | 1998-06-19 | Fuchigami Micro:Kk | Wiring board for ic package and manufacture thereof |
JPH1174407A (en) * | 1997-08-29 | 1999-03-16 | Mitsubishi Electric Corp | Semiconductor device |
JPH1174637A (en) | 1997-08-29 | 1999-03-16 | Canon Inc | Electronic circuit board |
KR100352865B1 (en) * | 1998-04-07 | 2002-09-16 | 신꼬오덴기 고교 가부시키가이샤 | Semiconductor device and method for manufacturing the same |
US6927491B1 (en) | 1998-12-04 | 2005-08-09 | Nec Corporation | Back electrode type electronic part and electronic assembly with the same mounted on printed circuit board |
US6222277B1 (en) * | 1999-06-23 | 2001-04-24 | Emc Corporation | Non-collapsing interconnection for semiconductor devices |
-
1999
- 1999-08-27 JP JP24129499A patent/JP3343730B2/en not_active Expired - Fee Related
-
2000
- 2000-08-08 US US09/635,478 patent/US6346679B1/en not_active Expired - Fee Related
- 2000-08-15 AU AU53424/00A patent/AU762555B2/en not_active Ceased
- 2000-08-17 CN CNB001234641A patent/CN1153284C/en not_active Expired - Fee Related
- 2000-08-22 GB GB0020706A patent/GB2358735B/en not_active Expired - Fee Related
-
2001
- 2001-05-16 US US09/855,620 patent/US20010023782A1/en not_active Abandoned
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1471574A2 (en) * | 2003-04-24 | 2004-10-27 | Shinko Electric Industries Co., Ltd. | Wiring substrate and electronic parts packaging structure |
US20040212087A1 (en) * | 2003-04-24 | 2004-10-28 | Shinko Electric Industries Co., Ltd. | Wiring substrate and electronic parts packaging structure |
US7557450B2 (en) | 2003-04-24 | 2009-07-07 | Shinko Electric Industries Co., Ltd. | Wiring substrate and electronic parts packaging structure |
US20070114673A1 (en) * | 2003-04-24 | 2007-05-24 | Shinko Electric Industries Co., Ltd. | Wiring substrate and electronic parts packaging structure |
US7183647B2 (en) | 2003-04-24 | 2007-02-27 | Shinko Electric Industries, Co., Ltd. | Wiring substrate and electronic parts packaging structure |
EP1471574A3 (en) * | 2003-04-24 | 2006-07-12 | Shinko Electric Industries Co., Ltd. | Wiring substrate and electronic parts packaging structure |
US6933596B2 (en) | 2003-07-01 | 2005-08-23 | Northrop Grumman Corporation | Ultra wideband BGA |
US20050001296A1 (en) * | 2003-07-01 | 2005-01-06 | Northrop Grumman Corporation | Ultra wideband BGA |
WO2005013359A1 (en) * | 2003-07-31 | 2005-02-10 | Matsushita Electric Industrial Co., Ltd. | Semiconductor device |
EP1548825A2 (en) * | 2003-12-24 | 2005-06-29 | Seiko Epson Corporation | Semiconductor device, manufacturing method thereof and electronic equipment |
EP1548825A3 (en) * | 2003-12-24 | 2007-07-04 | Seiko Epson Corporation | Semiconductor device, manufacturing method thereof and electronic equipment |
US6994570B2 (en) * | 2004-01-28 | 2006-02-07 | International Business Machines Corporation | High performance interposer for a chip package using deformable button contacts |
US20050164526A1 (en) * | 2004-01-28 | 2005-07-28 | International Business Machines Corporation | High performance interposer for a chip package using deformable button contacts |
Also Published As
Publication number | Publication date |
---|---|
GB2358735A (en) | 2001-08-01 |
AU5342400A (en) | 2001-03-01 |
JP3343730B2 (en) | 2002-11-11 |
CN1153284C (en) | 2004-06-09 |
US6346679B1 (en) | 2002-02-12 |
AU762555B2 (en) | 2003-06-26 |
GB2358735B (en) | 2001-12-12 |
CN1286496A (en) | 2001-03-07 |
JP2001068589A (en) | 2001-03-16 |
GB0020706D0 (en) | 2000-10-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6346679B1 (en) | Substrate on which ball grid array type electrical part is mounted and method for mounting ball grid array type electrical part on substrate | |
US5640047A (en) | Ball grid assembly type semiconductor device having a heat diffusion function and an electric and magnetic shielding function | |
CN100530640C (en) | Integrated circuit assembly | |
US5669775A (en) | Assembly for mounting components to flexible cables | |
US6693508B2 (en) | Protection of electrical devices with voltage variable materials | |
JP4096605B2 (en) | Semiconductor device and method for forming shield of semiconductor device | |
WO2002063688A1 (en) | Hybrid integrated circuit device and method for fabricating the same and electronic device | |
EP0952545B1 (en) | Ic card | |
US10181662B2 (en) | Switching device having a push button | |
JPH0429163B2 (en) | ||
US20020050379A1 (en) | Integrated circuit package with bond wires at the corners of an integrated circuit | |
US6166912A (en) | IC card and manufacturing method thereof | |
US5616954A (en) | Flat package for semiconductor IC | |
US20020050788A1 (en) | Plasma display apparatus having reinforced electronic circuit module | |
US5788511A (en) | Universal connector pad | |
US6808422B2 (en) | Filter insert for an electrical connector assembly | |
JPH06326439A (en) | Terminal structure and connecting method of printed wiring board | |
JPH10154854A (en) | Printed board | |
KR100612299B1 (en) | Flexible Printed Circuit with connector | |
US5519579A (en) | Method and apparatus for replacing directly attached chip | |
US6414383B1 (en) | Very low magnetic field integrated circuit | |
JPH0722768A (en) | Bonding method for conductive case | |
JPH04133344A (en) | Ic-loading flexible printed board | |
JPH0397596A (en) | Ic card | |
KR100307736B1 (en) | Ground device for electronic equipment |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |