WO1995025346A1 - Elektrische verbindungen in hochdichter rasteranordnung - Google Patents
Elektrische verbindungen in hochdichter rasteranordnung Download PDFInfo
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- WO1995025346A1 WO1995025346A1 PCT/DE1995/000359 DE9500359W WO9525346A1 WO 1995025346 A1 WO1995025346 A1 WO 1995025346A1 DE 9500359 W DE9500359 W DE 9500359W WO 9525346 A1 WO9525346 A1 WO 9525346A1
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- electrically conductive
- wires
- conductive connection
- connection according
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/538—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames the interconnection structure between a plurality of semiconductor chips being formed on, or in, insulating substrates
- H01L23/5384—Conductive vias through the substrate with or without pins, e.g. buried coaxial conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the subgroups H01L21/06 - H01L21/326
- H01L21/4814—Conductive parts
- H01L21/4846—Leads on or in insulating or insulated substrates, e.g. metallisation
- H01L21/486—Via connections through the substrate with or without pins
-
- 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
- H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
- H05K3/4038—Through-connections; Vertical interconnect access [VIA] connections
-
- 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
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
-
- 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
- H01L2924/30—Technical effects
- H01L2924/301—Electrical effects
- H01L2924/3011—Impedance
-
- 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
- H05K2201/01—Dielectrics
- H05K2201/0183—Dielectric layers
- H05K2201/0187—Dielectric layers with regions of different dielectrics in the same layer, e.g. in a printed capacitor for locally changing the dielectric properties
-
- 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
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10227—Other objects, e.g. metallic pieces
- H05K2201/1028—Thin metal strips as connectors or conductors
-
- 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
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/02—Details related to mechanical or acoustic processing, e.g. drilling, punching, cutting, using ultrasound
- H05K2203/0235—Laminating followed by cutting or slicing perpendicular to plane of the laminate; Embedding wires in an object and cutting or slicing the object perpendicular to direction of the wires
-
- 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
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/06—Lamination
- H05K2203/063—Lamination of preperforated insulating layer
Definitions
- the invention relates to electrical connections between two interfaces, the electrical connections being arranged in a connecting element in high density.
- Such connections function, in particular when a connection element is embedded in substrate materials of microelectronics, as vertical vias in large numbers and densities.
- the proven thin-film techniques from IC production have been adapted for the production of high-density, multi-layer wiring systems for multi-chip modules.
- Three-dimensional packaging techniques have been developed in recent years to reduce the line paths between the IC components for the fastest signal processing with reduced power consumption.
- a real vertical integration requires electrical connections or plated-through holes of generally large numbers and high density through the IC components or the carrier substrates. Such vias are provided by the invention.
- stacking technology for multi-chip modules or IC components as well as three-dimensional system integration (vertical integration), the construction of massively parallel computer systems, the construction of an artificial retina and the construction of a to call electronic eye.
- the prior art includes the galvanization or chemical metallization of substrate bores for producing electrical connections or plated-through holes through substrate materials of microelectronics.
- through-plating is primarily produced by electroplating substrate bores using previously customary methods from printed circuit board production.
- the wall of the borehole is conditioned in a catalytic step with germs containing metal or noble metal, so that subsequently an electroless metallization in a copper electrolyte is possible.
- Drill holes larger than 100 ⁇ m in diameter cause rough deviations in a high-density wiring grid, which is characterized by small conductor track widths (typically approx. 20 ⁇ m - 30 ⁇ m) and center distances (typically approx. 50 ⁇ m - 75 ⁇ m)
- a large number of plated-through holes of about 500 ⁇ m take up a much too large substrate area, which is not available in the case of maximum integration.
- the boreholes are always only provided with a metal sleeve, so that the remaining openings in the substrates also support further thin-film processing make the application of liquid resists considerably more difficult.
- the plated-through holes presented in DE 37 42 669 are electrically conductive connections between two wiring layers of a thin-film structure above an IC component.
- Contact metallizations are applied to a layer of a semiconductor chip at the locations provided for the formation of plated-through holes.
- these contact metallizations are provided with electrically conductive metal columns that taper upwards.
- the result is so-called filled vias, the can bridge a few ⁇ m height difference within the thin-film wiring and be manufactured in order to achieve planar wiring.
- the special shape of the metal columns ensures that no gaps form between the metal columns and the dielectric. A planar surface is created in which the narrow ends of the metal columns lie.
- small aluminum bumps are generated by structuring an applied aluminum layer in accordance with a field of plated-through holes to be created on the surface of a horizontally mounted n-conducting silicon wafer. Then the substrate with the aluminum bumps is heated so strongly that the aluminum bumps melt due to a vertical temperature gradient and migrate through the silicon wafer on its underside (so-called aluminum thermomigration). This results in electrically conductive p-type through-contact channels through the silicon wafer, which are electrically insulated from one another. The process is favored by heavily thinned wafer material, which, however, causes considerable handling effort. This process technology is therefore limited to a few IC manufacturers.
- the invention is based on the object of providing electrical connections or plated-through holes at precisely predeterminable mutual distances and angular positions, in large numbers and with high spatial density, in particular as vertical plated-through holes through substrate materials of microelectronics are designed in such a way that their signal transmission quality reaches the standard of conventional horizontal conductor tracks. It is a further object of the invention to provide a method for producing such electrical connections.
- An inventive solution to this problem consists in electrically conductive connecting wires of a connecting element according to the characterizing features of claim 1 and a method for producing a connecting element according to claim 14. Preferred further developments are listed in the subclaims.
- the electrical connections or plated-through holes are combined in a connection or plated-through element according to the invention. They are electrically insulated from one another and connect a first surface to a second surface of a connecting element.
- the electrical connecting wires are preferably firstly low-resistance and secondly have high aspect ratios, ie the ratio of connecting wire length to connecting wire width assumes high values.
- the spacing between adjacent wires can be made so small (down to the ⁇ m range) that with external dimensions of a via element in the mm range, this provides a large number of electrical connecting wires.
- the cross-sections of the wires or conductor tracks and their respective spacing and angular positions, the conductor track patterns, are formed on the surfaces of a connecting element in such a way that adaptation to the subsequent wiring pattern is possible seamlessly.
- Proven methods and processes from thin-film technology are preferably used to produce connections according to the invention in a connecting element.
- connection or through-contact elements are inserted into recesses or openings in substrate materials (e.g. ceramic, silicon, glass, plastic) using planar joining technology with the optical adjustment of a placement device.
- substrate materials e.g. ceramic, silicon, glass, plastic
- this adjusted insertion which can be carried out with various modified wafer testers with comparatively little effort, can be carried out with a device-specific accuracy of approximately 2 ⁇ m. This is necessary an undos the Le 'rterbahn- pattern of fürheft istsettis seamlessly to later be able to adjust the horizontal wiring pattern.
- This compatibility of the wiring grid on the horizontal and vertical level is also a prerequisite for high-density 3D integration in microelectronic system structures.
- a through-contact element After successful insertion and alignment of a through-contact element according to the invention, its position relative to the substrate material is fixed in a permanently stable manner. This is advantageously carried out by a method in which, in addition to fixing a via element, also the gaps between the substrate material and the via element are filled.
- the subsequent, double-sided processing of the substrate in conventional thin-film technology is in no way impaired by the planar joining technique for embedding one or more through-contact elements in the substrate.
- a polymeric dielectric layer is preferably first applied to the front and / or back of the substrate, on which the further wiring is only then carried out.
- the desired large number of vertical electrical connections can be made available by installing prefabricated, miniaturized through-contact elements in substrate materials using planar joining technology.
- the separation of the manufacture and the use in one area of application frees one from the difficult and restricted manufacture of conventional vertical plated-through holes and, in particular, the mature thin-film technology can be used in horizontal process control for the manufacture of the vertical feed-through conductor tracks.
- the conductor tracks in a through-contacting element according to the invention which are the later vertical connections in a three-dimensional structure, can be produced with the same process steps and accuracy requirements as for conventional horizontal conductor tracks.
- suitable geometric dimensions e.g.
- the vertical conductor tracks and / or the use of certain materials, for.
- the electrical properties of the vertical conductors z. B. capacity ( ⁇ ag), inductance (sbelag), resistivity, Wellenwi ⁇ resistor) ent ⁇ r .öchend selectively adjust the requirements. For example, very low-resistance connections can be made. The same applies, for example, to mastering the problem of crosstalk of electrical lines or conductor tracks.
- Au conductor tracks in a connecting element meet the wiring requirements due to their high current carrying capacity and high conductivity, even with long cable routes.
- the vertical connecting conductor tracks of a plated-through element can bridge entire substrate thicknesses in the mm range, and this while maintaining a high signal quality.
- the large lengths that can be achieved are expressed in the interconnects according to the invention of a via element even in very high aspect ratios (ratio of height to width of an interconnect) that cannot be achieved with conventionally produced plated-through holes.
- materials and / or production technologies can also be used which, for. B. are different from the substrate material and the technology for producing an integrated circuit.
- Through-contact elements according to the invention as independent components also enable quasi-equal front and back processing on the substrate with embedded via elements and other IC components.
- the surfaces of the through-contacting elements which coincide with the front side of the substrate and the back side of the substrate, are automatically flat due to the manufacture (for example sawing the wafer) or for the process (for example grinding and polishing processes).
- very narrow conductor tracks can also be laid in a horizontal plane on the substrate front and the substrate back, a necessary prerequisite for high-density 3D integration.
- the vertical integration according to the invention is a pure packaging technology.
- the comparatively low technological effort enables system implementation at a large number of packaging companies.
- the system yield can be increased considerably, and adaptation to different applications can be carried out without great effort.
- Via elements according to the invention can be used advantageously not only at the substrate level, but also at the chip level. If, for example, in the production of integrated circuits (ICs, ASICs), there is enough space in the layout for the subsequent embedding of through-contacting elements according to the invention, it is possible to provide chips with a large number of electrical through-contacts without any intervention in the IC production technology. This enables vertical direct stacking of IC components. For example, very compact memory units can be produced on the board surface with the smallest space requirement, which despite the vertical direct stacking also have no deterioration in access times, since short signal transit times can be realized in the vertical conductor tracks of the through-contacting elements according to the invention.
- Figure 1.a Silicon wafer with thin-film metallization on both sides
- Figure 1.b embodiment of a plated-through element
- FIG. 2 scanning electron microscope images of a via element
- Figure 3.a Inserting a via element in a
- Figure 4.a Cross section through a ceramic substrate with an embedded through-contact element with hardened epoxy potting compound
- FIG. 4.b Measured height profile of an embedded, protruding via element with casting compound redundancy after the casting compound has hardened
- Figure 5.a Through contact element embedded in Al2 ⁇ 3 ceramic substrate Figure 5.b: Enlargement of the embedded via element from Figure 5.a.
- Figures 6.a, 6.b, 6.c Embedding technology for 3D integration with front
- FIGS. 7.a, 7.b Embedding technology for 3D integration with backside processing
- Figure 8.a Enlarged section of the back of the substrate with an embedded through-contact element after carried out backside planarization with grinding and polishing processes
- Figure 8.b Measured height profile of the polymer layer applied to the back of the substrate along the local axis: via element-via opening-joining area (sealing compound) -substrate
- a via element is preferably produced on the basis of silicon wafers (1) which are coated on both sides with an insulating polymer dielectric (2) (see FIG. 1 a and 1 b).
- Straight, parallel conductor strips (3) are applied as connecting wires by thin film processing on both sides of a silicon wafer and provided with a passivation layer (4).
- a silicon wafer is cut into strips orthogonally to this metallization (FIG. 1 a), standard wafer saws permitting high-precision cuts along the respective sawing tracks (5).
- individual through-contact element strips can be broken down into smaller through-contact elements parallel to the conductor tracks (saw marks (6) in FIG. 1.a).
- FIG. 1b shows the silicon carrier material (7), the polymer dielectric (2) applied to the silicon carrier material on both sides, the almost rectangular cross sections of the conductor strip (3) and the passivation layers (4) applied on both sides.
- the height (H) of a through-contact element is given by the distance between two adjacent saw marks (5), which run orthogonally to the lertering strips. The distance between adjacent saw marks, which lie parallel to the conductor track strips (6), determines the length (L) of a via element.
- the remaining third dimension perpendicular to the height and length of a through-contact element which is cuboid in this embodiment is referred to as the width (B) of a via element. This width corresponds essentially to the thickness of the silicon carrier material.
- 1.c, 1.d and 1.e show the dimensions of a further exemplary embodiment of a lead-through element with silicon as the carrier material.
- FIG. 1.c shows the dimensions of a further exemplary embodiment of a lead-through element with silicon as the carrier material.
- FIG. 1.c shows several thin-film conductor tracks (3) with a width of approx. 20 ⁇ m, the mutual (grid) spacing of which is approx. 50 ⁇ m and their respective lengths of 635 ⁇ m correspond to the height of the via element .
- the aspect ratio of a conductor track is 635 ⁇ m / 20 ⁇ m 30.
- the cross section of the via element (FIG.
- FIG. 1 shows the 500 ⁇ m thick silicon carrier material (7) and that on both sides of the silicon carrier material in a polymer -Dielectric embedded thin-film conductor tracks in a 50 ⁇ m grid.
- the layer sequence of silicon carrier material (thickness 500 ⁇ m) (7), polymer insulation layer (thickness approx. 20 ⁇ m) (2), conductor strip (thickness or height approx. 20 ⁇ m) ) (3). and polymer passivation layer (thickness approx. 10 ⁇ m) (4) is clearly shown.
- a suitable material for the insulation or passivation layer is, for example, polyimide.
- FIG. 3.a shows the slide (9) together with a spacer (10) and the alignment optics (11) of a modified wafer tester.
- the reference plane for the surface-flush insertion of a via element or generally an IC component in the ceramic substrate is specified or fixed by means of a transparent adhesive film (14) with a thickness of approx. 65 ⁇ m.
- a transparent adhesive film (14) with a thickness of approx. 65 ⁇ m.
- Such a through-contacting element (15) which is inserted, aligned and fixed with the adhesive film is shown in FIG. 3.a.
- a temperature-resistant, preferably ceramic-filled epoxy casting compound (16) is used to fill the remaining gaps (FIG. 3.b) from a micro-dispenser System (17) is used.
- the through-contacting element (15) is permanently fixed in its position in a planar manner with respect to the substrate front surface.
- the embedded via element (15) shows a slight protrusion (18) of approx. 10 ⁇ m - 50 ⁇ m compared to the surface of the back of the substrate (schematic: FIG. 4.a, measured: FIG. 4.b).
- the potting compound (16) is metered redundantly, so that not only is the adhesive joint completely filled, but also adjacent areas of the via element or the substrate (8) are covered by it. In one or more grinding and polishing steps, applied to the back of the substrate, the potting compound redundancy (19) and the excess (18) of the via element are removed.
- the large substrate surface or the hardness of the ceramic substrate serves as an automatic polishing stop, so that no additional end point detection is necessary.
- FIG. 4.b shows the height profile measurement of the surface of an embedded via element with a projection (18) and casting compound redundancy (19).
- the protrusion of the via element is approximately 45 ⁇ m, while the redundant casting compound exceeds the substrate back surface (20) by less than 80 ⁇ m.
- Figure 4.c the height profile after the grinding and polishing process is shown in Figure 4.c.
- the deviations of the through-contact element (18) and the casting compound redundancy (19) with respect to the substrate surface (20) could be reduced to less than 3.7 ⁇ m.
- Figure 4.c also shows that the hardened casting compound has been removed so much that its surface is even below the substrate surface. This results from the lower hardness of the hardened casting compound compared to the silicon carrier material and the ceramic substrate.
- powdered ceramic material can be added to the potting compound, for example.
- FIG. 5.a shows a through-contacting element embedded in Al 2 O 3 ceramic (8) with a length of approx. 1 cm and a width of approx. 0.6 mm.
- the laser-cut opening had dimensions from approximately 1 mm to 12 mm.
- the remaining gaps between the via element and the Al2O3 ceramic are filled with hardened epoxy potting compound (16).
- the through-contacting element contains a total of 400 strip conductors with a length of 1 cm.
- the cross-section (approx. 20 ⁇ m x 20 ⁇ m) of the vertical conductor tracks (3) is clearly visible in the enlargement in FIG. 5.b.
- FIG. 6.a shows a silicon IC component (21) embedded in a ceramic substrate (8) and an embedded silicon via element (7), the adhesive joints (16) filled with epoxy potting compound, the polymer insulation (2, 4) and the conductor strip (3) of the silicon via element are specially marked.
- FIG. 6.b shows structured via openings (23) in the polymer dielectric layer (22).
- a polymer layer causes a slight planarization of the underlying topography. With sufficiently small unevenness (lateral ⁇ 20 ⁇ m), a degree of planarization of up to 50% can be achieved depending on the polymer. Long-wave bumps (lateral> 100 ⁇ m) are traced by the polymer layer (consequence: constant layer thickness in the coating process) and remain as deviations from the substrate level.
- the polymer layer serves to produce a uniform liability basis for the wiring.
- the wiring is decoupled from the critical joining area, which would otherwise exert additional stress on the narrow conductor tracks under thermal stress.
- the homogeneous polymeric basis with a uniform coefficient of thermal expansion is a prerequisite for the reliability of the thin-film wiring.
- the polymer layers give the possibility of creating a material environment for the conductor tracks which is characterized by a uniform, homogeneous dielectric constant.
- the conductor tracks are surrounded by a uniform dielectric constant instead of experiencing material jumps in the embedding area.
- the conductor tracks (24) electroplated onto the polymer layer (22) are illustrated in a first metallization layer and the vertical calender interconnects (3) of the via element marked from the front to the back of the ceramic substrate.
- a polymeric dielectric layer can be dispensed with on the back of the substrate.
- the metallic conductor tracks (25) are applied directly to the planarized substrate rear surface (FIG. 7.a). Steps in the topography of an embedding substrate (through-contact element or substrate edge in the joining area) are less critical for ductile, metallic conductor tracks than for a deposited polymer layer. If the layer thickness for a deposited polymer layer were smaller than the step height, cracks would occur in the polymer during the cure process, which would then no longer be able to follow the course of the step. Permissible step heights in this regard should be less than approximately 10 ⁇ m.
- galvanized contact bumps (27) are formed on the back of the ceramic substrate in addition to the polymer dielectric (26) applied to the conductor tracks (25).
- the cross-section of the vertically embedded conductor tracks (3) or connecting wires is therefore directly connected to the thin-film wiring at the horizontal module level.
- identical contact fields are formed both on the front and on the rear of the module for the purpose of contacting the modules with one another in a stack arrangement.
- the height of a via element is selected so that it corresponds exactly to the thickness of the substrate, in which the via element is used so that the planarity of the substrate is retained. Grinding and polishing steps to planarize the back of the substrate as a result of the embedded via element are no longer necessary in this embodiment.
- a polymer layer is also applied (28) and structured on the back of the substrate after embedding one or more through-contact elements and possibly further IC components and, if appropriate, grinding and polishing steps.
- FIG. 8.a shows an enlarged top view, the via openings (29) being approximately 30 ⁇ m ⁇ 30 ⁇ m and the Au conductor tracks being approximately 20 ⁇ m ⁇ 50 ⁇ m.
- a relative height profile of the polymer layer surface (surface profilometer scan) recorded along the line A ⁇ B (see FIG. 8.a) is shown in FIG. 8.b.
- the location coordinate (in ⁇ m) is plotted on the abscissa, while the ordinate (in ⁇ m) indicates the associated relative height of the polymer layer, the reference point being set at 0 ⁇ m on the polymer surface above the substrate area.
- the polymer layer deviations in the joining area and in the area of the via element are less than 3 ⁇ m.
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7523781A JPH09510323A (ja) | 1994-03-16 | 1995-03-14 | 高密度格子配置の電気結線 |
EP95913029A EP0750791A1 (de) | 1994-03-16 | 1995-03-14 | Elektrische verbindungen in hochdichter rasteranordnung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4408987 | 1994-03-16 | ||
DEP4408987.2 | 1994-03-16 |
Publications (1)
Publication Number | Publication Date |
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WO1995025346A1 true WO1995025346A1 (de) | 1995-09-21 |
Family
ID=6512981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1995/000359 WO1995025346A1 (de) | 1994-03-16 | 1995-03-14 | Elektrische verbindungen in hochdichter rasteranordnung |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0750791A1 (de) |
JP (1) | JPH09510323A (de) |
DE (1) | DE19509202A1 (de) |
WO (1) | WO1995025346A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10249854B4 (de) * | 2002-10-25 | 2005-06-16 | eupec Europäische Gesellschaft für Leistungshalbleiter mbH | Leistungshalbleiter-Baugruppe |
DE10332333B4 (de) * | 2003-07-16 | 2006-08-03 | Siemens Ag | Detektormodul |
DE102005047106B4 (de) | 2005-09-30 | 2009-07-23 | Infineon Technologies Ag | Leistungshalbleitermodul und Verfahren zur Herstellung |
FR2976720A1 (fr) * | 2011-06-15 | 2012-12-21 | St Microelectronics Sa | Procede de connexion electrique entre des elements d'une structure integree tridimensionnelle, et dispositif correspondant |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3714706A (en) * | 1970-08-21 | 1973-02-06 | Perkin Elmer Corp | Array of conductors fixed through dielectric plate |
DE3709770A1 (de) * | 1987-03-25 | 1988-10-13 | Ant Nachrichtentech | Leiterplatte, -folie, multilayerinnenlage oder leitersubstrat mit durchkontaktierungen und herstellungsverfahren |
US5015207A (en) * | 1989-12-28 | 1991-05-14 | Isotronics, Inc. | Multi-path feed-thru lead and method for formation thereof |
-
1995
- 1995-03-14 JP JP7523781A patent/JPH09510323A/ja active Pending
- 1995-03-14 DE DE19509202A patent/DE19509202A1/de not_active Withdrawn
- 1995-03-14 EP EP95913029A patent/EP0750791A1/de not_active Withdrawn
- 1995-03-14 WO PCT/DE1995/000359 patent/WO1995025346A1/de not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3714706A (en) * | 1970-08-21 | 1973-02-06 | Perkin Elmer Corp | Array of conductors fixed through dielectric plate |
DE3709770A1 (de) * | 1987-03-25 | 1988-10-13 | Ant Nachrichtentech | Leiterplatte, -folie, multilayerinnenlage oder leitersubstrat mit durchkontaktierungen und herstellungsverfahren |
US5015207A (en) * | 1989-12-28 | 1991-05-14 | Isotronics, Inc. | Multi-path feed-thru lead and method for formation thereof |
Also Published As
Publication number | Publication date |
---|---|
DE19509202A1 (de) | 1995-09-21 |
JPH09510323A (ja) | 1997-10-14 |
EP0750791A1 (de) | 1997-01-02 |
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