WO2005078807A1 - 光電変換プラグとそれを用いた光電変換モジュール、及びその光電変換プラグの製造方法 - Google Patents
光電変換プラグとそれを用いた光電変換モジュール、及びその光電変換プラグの製造方法 Download PDFInfo
- Publication number
- WO2005078807A1 WO2005078807A1 PCT/JP2005/001373 JP2005001373W WO2005078807A1 WO 2005078807 A1 WO2005078807 A1 WO 2005078807A1 JP 2005001373 W JP2005001373 W JP 2005001373W WO 2005078807 A1 WO2005078807 A1 WO 2005078807A1
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- WO
- WIPO (PCT)
- Prior art keywords
- photoelectric conversion
- plug
- conversion plug
- optical
- conversion element
- Prior art date
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4251—Sealed packages
- G02B6/4253—Sealed packages by embedding housing components in an adhesive or a polymer material
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4255—Moulded or casted packages
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4274—Electrical aspects
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
-
- 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
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
Definitions
- Photoelectric conversion plug photoelectric conversion module using the same, and method of manufacturing the photoelectric conversion plug
- the present invention relates to, for example, a photoelectric conversion plug used in an optical transmission system, a photoelectric conversion module using the same, and a method for manufacturing the photoelectric conversion plug.
- Optical transmission systems which have excellent characteristics such as low noise and broadband, have been widely used for wiring of automobiles, audios and other consumer devices as well as communications and cable televisions. I have.
- FIG. 6 is a cross-sectional view showing a conventional photoelectric device used for an optical transmission system.
- the photoelectric conversion element 30 emits light or receives light.
- the photoelectric conversion element 30 is attached to the lead frame 31.
- the first envelope 32 is formed by molding a part of the lead frame 31 to which the photoelectric conversion element 30 is attached with epoxy resin or the like.
- the optical connector 33 is composed of a flange 34 and an optical fiber cord 35 connected to the flange 34.
- the end face 36a of the optical fiber 36 coated on the optical fiber cord 35 is optically polished.
- the second envelope 37 couples the first envelope 32 and the flange 34, and optically couples the photoelectric conversion element 30 and the end face 36a of the optical fiber 36.
- the circuit board 38 mounts the lead frame 31 extending from the first envelope 32.
- the pins 39 are for stably mounting the second envelope 37 on the circuit board 38 and are implanted in the second envelope 37.
- the following operation is required to optically couple the photoelectric conversion element 30 and the end face 36a of the optical fiber 36. That is, with the optical connector 33 snapped into the second envelope 37, the first envelope 32 is incorporated into the second envelope 37, and light is emitted or collected from the end face 36a of the optical fiber 36. Light and photoelectric conversion element 30 The position of the photoelectric conversion element 30 must be adjusted so that light is optically coupled.
- the "optical axis alignment work” for adjusting the position of the first envelope 32 in which the photoelectric conversion element 30 is molded and performing optical coupling is performed. You will need it. In this "optical axis alignment work”, very precise work is required because the optical axes of the photoelectric conversion element 30 and the end face 36a of the optical fiber 36 must be aligned. Further, after this “optical axis alignment work”, a work of fixing the first envelope 32 to the second envelope 37 must be performed.
- the present invention solves such a conventional problem, realizes an optical axis alignment with a simple method, realizes a photoelectric conversion plug with good productivity, and realizes a low-cost photoelectric conversion plug and a photoelectric conversion plug.
- the purpose is to provide a conversion module.
- the photoelectric conversion plug of the present invention is provided adjacent to the photoelectric conversion element, an optical lens unit for condensing an optical signal output from the photoelectric conversion element on an optical fiber, and the optical lens unit. And a fiber holding portion provided at an end of the lens barrel portion for supporting an optical fiber, wherein the optical lens portion, the lens barrel portion, and the fiber holding portion are covered with a resin. It is characterized in that it is integrally molded and a photoelectric conversion element is disposed inside the resin molded body.
- a photoelectric conversion module of the present invention includes a photoelectric conversion plug, a substrate on which the photoelectric conversion plug is mounted, and a signal processing circuit mounted on the substrate. It has.
- the optical lens unit, the lens barrel unit, and the holding unit supporting the optical fiber are integrally formed as a photoelectric conversion plug with a resin.
- the photoelectric conversion element is disposed inside the resin molded body, and this configuration facilitates the alignment of the optical axis of the photoelectric conversion element, the optical lens unit, and the optical fiber, which is conventionally troublesome. Can be.
- a low-cost photoelectric conversion plug and a photoelectric conversion module can be provided.
- the method for manufacturing a photoelectric conversion plug of the present invention includes a pair of an element joining frame to which a photoelectric conversion element is joined and an electrical connection lead frame to which the photoelectric conversion element is electrically connected.
- a hoop base material forming step of continuously providing the hoop base material at predetermined intervals on a hoop-shaped base material, and bonding a photoelectric conversion element to a predetermined position of an element bonding frame, and forming an anode and a cathode of the photoelectric conversion element.
- An element bonding step of connecting each to the lead frame for electrical connection, and a step of placing the photoelectric conversion element at a predetermined position of the injection mold and condensing an optical signal output from the photoelectric conversion element on an optical fiber.
- a photoelectric conversion plug having an optical lens part, a fiber holding part to which an optical fiber is coupled, and a lens barrel part formed between the optical lens part and the fiber holding part is molded with a photoelectric conversion element and a part of each frame.
- FIG. 1 is a cross-sectional view showing a photoelectric conversion module according to Embodiment 1 of the present invention.
- FIG. 2A is a sectional view of a photoelectric conversion plug according to Embodiment 2 of the present invention.
- FIG. 2B is a sectional view of a socket to which the photoelectric conversion plug shown in FIG. 2A is coupled.
- FIG. 3 is a cross-sectional view showing a photoelectric conversion module in which the photoelectric conversion plug shown in FIG. 2A is coupled to the socket shown in FIG. 2B.
- FIG. 4 is a manufacturing process diagram of the photoelectric conversion plug shown in FIG. 2A.
- FIG. 5A is a cross-sectional view of an injection mold used in the photoelectric conversion plug forming step shown in FIG.
- FIG. 5B is a side view of the injection mold shown in FIG. 5A.
- FIG. 5C is a sectional view taken along the line 5C-5C of the injection mold shown in FIG. 5A.
- FIG. 6 is a cross-sectional view showing a conventional photoelectric device.
- the photoelectric conversion plug of the present invention is provided adjacent to the photoelectric conversion element, an optical lens unit for condensing an optical signal output from the photoelectric conversion element on an optical fiber, and the optical lens unit. And a fiber holding portion provided at an end of the lens barrel portion for supporting an optical fiber, wherein the optical lens portion, the lens barrel portion, and the fiber holding portion are covered with a resin. It is characterized in that it is integrally molded and a photoelectric conversion element is disposed inside the resin molded body.
- a photoelectric conversion module includes a photoelectric conversion plug, a substrate on which the photoelectric conversion plug is mounted, and a signal processing circuit mounted on the substrate. It has.
- FIG. 1 is a sectional view showing a photoelectric conversion module according to Embodiment 1 of the present invention.
- This photoelectric conversion module is for converting an electric signal formed of a semiconductor or the like into an optical signal by the photoelectric conversion element 101 and transmitting the optical signal to the optical fiber 135.
- the main structure of the photoelectric conversion module is composed of a photoelectric conversion plug 104 for inserting and fixing an optical fiber 135 and a socket 105 for inserting and connecting the photoelectric conversion plug 104.
- the photoelectric conversion plug 104 is adjacent to the photoelectric conversion element 101, an optical lens unit 106 for condensing an optical signal output from the photoelectric conversion element 101 on the optical fiber 135, and the optical lens unit 106. And a fiber holding unit 113 provided at an end of the lens barrel 107 for supporting the optical fiber 135.
- the optical lens unit 106, the lens barrel unit 107, and the fiber holding unit 113 are integrally formed of resin, and the photoelectric conversion element 101 is disposed inside the resin molded body 108.
- the socket 105 includes a board 112 on which the photoelectric conversion plug 104 is mounted, and the board 1 And a signal processing circuit 110 attached to the device 12.
- the photoelectric conversion plug 104 includes a photoelectric conversion element 101 for converting an electric signal into an optical signal, and an optical lens unit 10 for condensing the optical signal generated by the photoelectric conversion element 101 on the tip of the optical fiber 135. And a lens barrel 107 formed between the optical lens 106 and the optical fiber 135.
- the lens barrel 107 has a tubular shape, and a fiber holder 113 for inserting and supporting the optical fiber 135 is provided at one end of the lens barrel.
- the fiber holding portion 113 is provided with a step so that the inner diameter is different. With this step, the insertion amount of the optical fiber 135 is defined.
- the photoelectric conversion plug 104 is formed by injection molding using an optical resin.
- the optical lens portion 106, the lens barrel portion 107, and the fiber holding portion 113 are integrally formed, and the photoelectric conversion element 101 is molded inside the resin molded body 108 by molding.
- the shapes of the optical lens unit 106 and the lens barrel unit 107 are formed with high precision by the mold, and the mounting position and the direction of the photoelectric conversion element 101 are also precisely defined by the mold. .
- the optical axis alignment between the photoelectric conversion element 101, the optical lens unit 106, and the optical fiber 135 is no longer necessary, so that the optical axis alignment work, which was conventionally extremely troublesome, can be eliminated in the production process.
- productivity can be significantly improved.
- one end of a lead frame 109 derived from the photoelectric conversion element 101 provided inside the resin molding 108 is used as a resin molding terminal 109a. Pulled out to the side of body 108. Further, in addition to the external connection terminal 109a, an exposed portion 109b for exposing a part of the lead frame to the surface of the resin molded body 108 is separately provided. By increasing the exposed portion of the resin molded body 108 in the lead frame 109, heat generated from the photoelectric conversion element 101 is released from both ends of the connection terminal 109a of the lead frame 109 and the exposed portion 109b. The heat radiation effect is enhanced.
- terminals 1 for external connection of the lead frame 109 are provided on the side surface of the resin molded body 108.
- a portion 09a and an exposed portion 109b are provided on opposite side surfaces.
- the socket 105 includes a signal processing circuit element 110 for processing an electric signal input to the photoelectric conversion element 101, a housing 111 for detachably connecting the photoelectric conversion plug 104, and the housing 111 and the signal processing circuit element 110. And a substrate 112 to be mounted.
- the housing 111 has an entrance 11 la into which the resin molded body 108 of the photoelectric conversion plug 104 fits, and a connection terminal 117 with which a lead frame 109 for external connection of the photoelectric conversion plug 104 abuts. are doing.
- the connection terminal 117 has a configuration in which the housing 111 is insert-molded.
- the substrate 112 is a resin wiring substrate or a ceramic multilayer wiring substrate generally used in electronic devices and the like.
- the resin molded body 108 having low heat resistance can be handled independently of the socket 105. become. Therefore, when the photoelectric conversion module is mounted on the mother board (not shown), only the socket 105 is reflow mounted on the mother board in advance, and the photoelectric conversion plug 104 can be inserted into the socket 105 later.
- the photoelectric conversion module can be treated as a device that can be practically mounted on a surface.
- the signal processing circuit element 110 may be connected directly to the outer periphery of the socket 105 or indirectly connected to the substrate 112, in addition to being directly connected to the substrate 112. It is.
- a surface-emitting type photoelectric conversion element 101 is used.
- the photoelectric conversion element 101 is usually directly mounted on the substrate 112 for use.
- the light emission direction is output in the direction perpendicular to the substrate 112
- the photoelectric conversion element 101, the optical lens unit 106, and the fiber holding unit 113, which require optical axis adjustment, are integrally formed of optical resin, and the photoelectric conversion plug 104 is formed. Has been consolidated. Thus, it is not necessary to separately provide a component such as a reflecting mirror. Further, the insertion direction of the photoelectric conversion plug 104 into the inlet 111a can be adjusted, and the connection direction of the optical fiber 135 can be freely set.
- the photoelectric conversion plug 104 can be downsized.
- a locking projection 114 is provided on a side surface of the photoelectric conversion plug 104.
- an engaging portion 115 for engaging with the locking projection 114 is provided on the wall surface of the opening 111a of the socket 105.
- a pressing member 116 for pressing and fixing the photoelectric conversion plug 104 is provided in the insertion port 111a.
- connection terminal 117 provided on the socket 105 side as the pressing member 116 protrudes into the insertion port 111a so as to be curved toward the photoelectric conversion element 101. This makes it possible to utilize the elasticity of the connection terminal 117 due to the bending, and to stabilize the characteristics of the photoelectric conversion module without providing a separate pressing member.
- the pressing direction of the photoelectric conversion plug 104 by the pressing member 116 is set to a direction orthogonal to the insertion direction of the photoelectric conversion plug 104.
- the photoelectric conversion plug 104 is pressed against the wall surface opposite to the wall surface on which the pressing member 116 is provided in the insertion opening 11 la, and the integration of the photoelectric conversion plug 104 and the socket 105 is performed. Can be further increased.
- the socket 105 is provided with a heat radiating member 118 connected to the exposed portion 109b of the lead frame exposed on the surface of the photoelectric conversion plug 104.
- the heat dissipating member 118 is preferably made of a material having high thermal conductivity such as copper. With this structure, the heat radiation effect of the photoelectric conversion element 101 can be enhanced via the exposed portion 109b of the lead frame and the heat radiation member 118. (Embodiment 2)
- FIG. 2A is a sectional view of a photoelectric conversion plug according to Embodiment 2 of the present invention
- FIG. 2B is a sectional view of a socket to which the photoelectric conversion plug shown in FIG. 2A is coupled
- FIG. 3 is a photoelectric conversion plug shown in FIG. 2A.
- FIG. 3B is a sectional view showing the photoelectric conversion module coupled to the socket shown in FIG. 2B.
- a combination of the photoelectric conversion plug 201 shown in FIG. 2A and the socket 213 shown in FIG. 2B is called a photoelectric conversion module.
- main body 202 of photoelectric conversion plug 201 is made of an optical resin.
- the optical lens unit 203 is provided for light emission or light collection of the photoelectric conversion element 204, and is formed integrally with the main body unit 202.
- a resin molded body 238 is formed.
- the photoelectric conversion element 204 As the photoelectric conversion element 204, a surface-emitting type element is used. Lead frame
- the photoelectric conversion element 204 is connected to 205 via a wire 206.
- the photoelectric conversion element 204 is insert-molded together with the wire 206 and a part of the lead frame 205 into the main body 202 having the above-described optical resin.
- the fiber holding section 207 is provided for coupling the optical fiber 235 to the main body 202 of the photoelectric conversion plug 201.
- the lens barrel unit 208 is formed between the fiber holding unit 207 and the optical lens unit 203.
- the optical fiber 235 is a fiber holding portion provided in the main body 202 of the photoelectric conversion plug 201.
- the optical fiber 235 includes a core 210 and a clad 211.
- the optical fiber 235 is fixed to the main body 202 with an adhesive 212.
- the socket 213 includes a resin housing 214.
- the housing 214 is provided with a hollow portion into which the main body portion 202 of the photoelectric conversion plug 201 is fitted, and a locking projection 214a for locking the main body portion 202 fitted into the hollow portion. Further, a terminal 215 to which the lead frame 205 of the photoelectric conversion plug 201 abuts is insert-molded in the housing 214.
- the terminal 215 is formed by bending a material having spring properties so as to abut on the lead frame 205 in a biased state.
- the socket 213 and the photoelectric conversion module For this purpose, an integrated circuit 217 and an electronic component 218 are mounted on a wiring board 216.
- FIG. 4 is a manufacturing process diagram of the photoelectric conversion plug shown in Fig. 2A
- Fig. 5A is a cross-sectional view of an injection molding die used in the photoelectric conversion plug forming process shown in Fig. 4
- Fig. 5B is a side view of the same.
- FIG. 5C is a sectional view taken along the line 5C-5C of the injection mold shown in FIG. 5A.
- the method for manufacturing a photoelectric conversion plug includes a hoop base material forming step, an element bonding step, a photoelectric conversion plug forming step, a cutting step, and a frame processing step.
- a method for manufacturing the photoelectric conversion plug shown in FIG. 4 will be described while being applied to the photoelectric conversion plug 201 shown in FIG. 2A.
- an element bonding frame 219a to which the photoelectric conversion element 204 is bonded and an electrical connection lead frame 219e to which the photoelectric conversion element 204 is electrically connected are formed as one set, This is continuously formed at predetermined intervals on the hoop-shaped base material 219.
- the photoelectric conversion element 204 is bonded to a predetermined position of the element bonding frame 219a, and the anode and the cathode of the photoelectric conversion element 204 are connected to the electrical connection lead frame 219e.
- the photoelectric conversion element 204 is placed at a predetermined position of an injection molding die, and has a photoelectric conversion unit including an optical lens unit 203, a fiber holding unit 207, and a lens barrel unit 208.
- the plug 201 is insert-molded so that the photoelectric conversion element 204 and a part of each of the lead frames 219e are molded.
- the photoelectric conversion plug formed in the photoelectric conversion plug forming step is formed.
- the element bonding frame 219a and the electrical connection lead frame 219e of the photoelectric conversion plug 201 cut in the cutting step are cut.
- a process in which the above-described dividing process and the frame processing process are combined that is, a process in which the photoelectric conversion plug 201 is separated from the hoop-shaped base material 219 into individual pieces is referred to as a processing process in a broad sense. I do.
- one set of lead frames is mounted on the hoop-shaped base material 219. It is provided continuously at a predetermined interval.
- This set of lead frames includes an element bonding frame 219a to which the photoelectric conversion element 204 is connected, and an electrical connection lead frame 219e to which the photoelectric conversion element 204 is electrically connected.
- the electrical connection lead frame 219e also has a force with the anode lead frame 219b to which the anode of the photoelectric conversion element 204 is connected and the cathode lead frame 219c to which the cathode of the photoelectric conversion element 204 is connected.
- the hoop base material forming step may be appropriately selected in consideration of dimensional accuracy, cost, and the like, which may be performed by either etching force punching or punching using a die.
- the hoop-shaped base material 219 has a through hole 219d into which the pilot pin 221 fits.
- the photoelectric conversion element 204 is bonded to a predetermined position of the element bonding frame 219a using a conductive adhesive. Also, the anode of the photoelectric conversion element 204 is connected to the anode lead frame 219b, and the cathode of the photoelectric conversion element 204 is connected to the cathode lead frame 219c. This connection is made by wire bonding using a wire 206.
- the photoelectric conversion element 204 bonded to the hoop-shaped base material 219 is disposed in an injection molding die 220, and the above-described frames 219a, 2
- the main body 202 is formed while the photoelectric conversion element 204 including the wire 206 is inserted into the mold 220 such that a part of 19b and 219c is molded.
- the photoelectric conversion plug 201 includes an optical lens unit 203 for receiving or emitting light from the photoelectric conversion element 204 and a fiber holding unit to which an optical fiber for receiving or emitting light from the optical lens unit 203 is coupled. 207, and a lens barrel 208 formed between the fiber holding part 207 and the optical lens part 203. Then, in this photoelectric conversion plug forming step, the optical lens unit 203, the fiber holding unit 207, and the lens barrel unit 208 are also integrally formed at the same time when the main unit 202 is formed.
- pilot pin 221 is provided on mold 220.
- the pilot pin 221 is positioned by being fitted into the through hole 219d provided in the base material 219, and serves as a reference when bonding the photoelectric conversion element 204 to a predetermined position of the element bonding frame 219a. It is.
- FIG. 5A is a cross-sectional view of the injection mold
- FIG. 5B is a side view of the same.
- FIG. 5C is a sectional view taken along section line 5C-5C in FIG. 5A.
- the mold 220 shown in FIG. 4 is provided with a cavity 222 for forming the main body 202 of the photoelectric conversion plug 201.
- slide pin 223 can slide in the X direction shown in FIG. 5C.
- a semicircular arc portion 224 formed into an arc shape is formed to form the optical lens portion 203.
- the mold 220 is provided with a lens barrel forming part 225 for forming the lens barrel 208 and a fiber holding part forming part 226 for forming the fiber holding part 207 in succession. You.
- the slide pin 223 is used to form the lens barrel 208 and the fiber holding part 207.
- the slide pin 223 is slid in the X direction to pull out the slide pin 223 from the formed barrel section 208 and the fiber holding section 207. It is possible to reduce the taper of the inner diameter part.
- the mold 220 is provided with a backup pin 227 which also holds the back surface force of the photoelectric conversion element 204 in order to prevent the photoelectric conversion element 204 from being moved by the resin injected by the photoelectric conversion element 204 bonded to the element bonding frame 219a. T! /
- Reference numeral 230 in Fig. 5A indicates a tunnel gate.
- the tunnel gate 230 is provided to be inclined from the parting line 209 toward the peripheral surfaces on both sides of the main body 202 of the photoelectric conversion plug 201. Further, it is formed so as to face the lens barrel forming portion 225 of the exit rocker slide pin 223 of the tunnel gate 230. Note that the parting line 209 in this embodiment is located on the back of the element bonding frame 219a to which the photoelectric conversion element 204 is bonded. The surface side. This simplifies the structure of the mold.
- the photoelectric conversion element 204 is connected to the element bonding frame 219a and the connected electrical connection lead frame 219e (ie, the anode lead frame 219b and the cathode lead frame 219c) in the mold 220. Place in place.
- the back-up pin 227 also holds the back surface force of the photoelectric conversion element 204.
- the molten resin is injected through the tunnel gate 230 to form the main body 202 of the photoelectric conversion plug 201.
- a semicircle is required to form the optical lens unit 203.
- the injection speed when filling resin into the circular arc portion 224 is reduced. As a result, bubbles do not accumulate in the optical lens unit 203 to form bubbles or sink marks, and the optical lens unit 203 having excellent accuracy and quality can be formed.
- the element bonding frame 219a and the electrical connection lead frame 219e (ie, the electric anode lead frame 219b and the cathode lead frame 219c) Has been described as a set of lead frames.
- the present invention is not limited to this, and the element bonding frame 219a may be configured to also serve as either the anode lead frame 219b or the cathode lead frame 219c.
- the joining between the element joining frame 219a and the photoelectric conversion element 204 is performed using a conductive adhesive, but the present invention is not limited to this.
- connection between the anode of the photoelectric conversion element 204 and the anode lead frame 219b and the connection between the cathode of the photoelectric conversion element 204 and the cathode lead frame 219c are performed by wire bonding. It is not limited to this.
- the photoelectric conversion element 204, the optical lens unit 203, and the fiber holding unit 207 can be integrally molded. Will be possible. This eliminates the need for optical axis alignment work. The assembling process can be simplified. In addition, the photoelectric conversion plug 201 having excellent alignment accuracy and reliability of the optical axis can be manufactured at a low cost, and has a special function and effect.
- the photoelectric conversion plug and the photoelectric conversion module according to the present invention have the effect of improving productivity, and are useful in an optical transmission system.
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- Optical Couplings Of Light Guides (AREA)
Abstract
Description
Claims
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP2004039401A JP2005235815A (ja) | 2004-02-17 | 2004-02-17 | 光電変換プラグおよび光電変換モジュール |
JP2004039402A JP2005233995A (ja) | 2004-02-17 | 2004-02-17 | 光電変換プラグの製造方法 |
JP2004-039401 | 2004-02-17 | ||
JP2004-039402 | 2004-02-17 |
Publications (1)
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WO2005078807A1 true WO2005078807A1 (ja) | 2005-08-25 |
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PCT/JP2005/001373 WO2005078807A1 (ja) | 2004-02-17 | 2005-02-01 | 光電変換プラグとそれを用いた光電変換モジュール、及びその光電変換プラグの製造方法 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101710129B (zh) * | 2009-12-08 | 2011-11-30 | 咸阳辰和电气有限公司 | 光纤车速传感器 |
CN113490449A (zh) * | 2019-04-23 | 2021-10-08 | 奥林巴斯株式会社 | 内窥镜的前端单元及内窥镜 |
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