CN102981222A - Photoelectric receiving module casing with four-channel transmitting and coupling structure - Google Patents
Photoelectric receiving module casing with four-channel transmitting and coupling structure Download PDFInfo
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- CN102981222A CN102981222A CN2012104980014A CN201210498001A CN102981222A CN 102981222 A CN102981222 A CN 102981222A CN 2012104980014 A CN2012104980014 A CN 2012104980014A CN 201210498001 A CN201210498001 A CN 201210498001A CN 102981222 A CN102981222 A CN 102981222A
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Abstract
The invention discloses a photoelectric receiving module casing with a four-channel transmitting and coupling structure and belongs to the technical field of photoelectric receiving module packaging. The photoelectric receiving module casing comprises a metal chassis, a metal wall body, an optical fiber pipe, a high-speed transmission ceramic component, direct current signal ceramic components, metal leads and a cover plate; the two direct current signal ceramic components are welded on the metal chassis and arranged oppositely; the high-speed transmission ceramic component is welded on the metal chassis; the optical fiber pipe is welded on the metal wall body corresponding to the high-speed transmission ceramic component; the metal wall body, the direct current signal ceramic components, the high-speed transmission ceramic component, the optical fiber pipe, the metal chassis and the cover plate are welded to form a sealed cavity; the metal leads are welded on the lower bottom surfaces of the high-speed transmission ceramic component and the direct current signal ceramic components; and four coupling and transmitting signal channels are arranged on the high-speed transmission ceramic component. The casing has the characteristics of high integration level, small size and low coupling difficulty.
Description
Technical field
The present invention relates to coupled structure photoelectricity receiver module encapsulation technology field.
Background technology
High transfer rate photoelectricity receiving unit is the pith in the optical communication system, because the photoelectricity receiving unit receives the light signal in the optical fiber and converts thereof into the electric signal of high-speed transfer, therefore, the package casing of photoelectricity receiving unit must satisfy the high transfer rate requirement.
The photoelectricity receiver module of the above transfer rate of 40Gbps is the pith in the high rate optical signal communications system, by receiving the light signal in the optical fiber, converts the electric signal of high-speed transfer to, and its package casing must satisfy the high transfer rate requirement of device.Usually use the synthetic 40Gbps module of receiver module of 4 10Gbps transfer rates, the complex process of this synthesis module, synthetic coupling efficiency is low, transfer efficiency is low, and energy consumption is high, and cost is high, module volume after 4 modules are synthetic is large, is unfavorable for the ever-reduced development trend of system bulk.
Summary of the invention
Technical matters to be solved by this invention provides a kind of four tunnel transmission coupled structure photoelectricity receiver module shells, has integrated level height, little, the low characteristics of coupling difficulty of volume.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of four tunnel transmission coupled structure photoelectricity receiver module shells, it is characterized in that comprising metal chassis, the metal body of wall, optical fiber tube, the high-speed transfer ceramic member, the direct current signal ceramic member, metal lead wire and cover plate, two direct current signal ceramic members are welded on the metal chassis and are oppositely arranged, the high-speed transfer ceramic member is welded on the metal chassis, optical fiber tube is welded on the metal body of wall corresponding with the high-speed transfer ceramic member, the metal body of wall, the direct current signal ceramic member, the high-speed transfer ceramic member, optical fiber tube, metal chassis and bridge welding are connected into seal chamber, be welded with metal lead wire on the bottom surface of high-speed transfer ceramic member and direct current signal ceramic member, the high-speed transfer ceramic member is provided with four tunnel coupled transfer signalling channels.
The cross section of described high-speed transfer ceramic member is step surface, front four tunnel coupled transfer signalling channels of arranging side by side, each road coupled transfer signalling channel is two signal transmssion lines, front-side metallization zone and metallized area corresponding to the back side are the electric signal transmission passage of difference output, two signal transmssion line full symmetrics, metallized area with ground connection between the two-way coupled transfer signalling channel separates, the back side of high-speed transfer ceramic member is provided with metallized area, be used for the weld metal lead-in wire, positive metallized area is connected metallized area by the connection of metallization interconnect hole with the back side.
The cross section of described direct current signal ceramic member is step surface, and step surface is provided with metallized area, and the back side is provided with metallized area, and the metallized area of two faces connects by inner metallization interconnect hole.
Four angles of described metal chassis are provided with mount pad, and mount pad is provided with via hole.
The beneficial effect that adopts technique scheme to produce is: described shell has higher integrated level, opto-electronic conversion chip and circuit that can encapsulated delivery four road signals, the coupling of more convenient photosignal and conversion, can improve the transfer efficiency of photosignal, be applicable to high-end photoelectricity receiver module encapsulation; Four road signals transmission coupling interface is in a shell, and distance is little to each other, and four road signal transmission distances of module are more approaching to be equated, the phase differential between signal of having reduced not go the same way has reduced signal transmission attenuation; Four road signal transmission modules replace original four modules, and convenient the installation reduced the volume of whole module, have reduced the difficulty of module coupling, are conducive to Optical Receivers to more high transfer rate development.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is plan structure synoptic diagram of the present invention;
Fig. 2 is the plan structure synoptic diagram that Fig. 1 removes cover plate;
Fig. 3 is that the A-A of Fig. 2 is to the sectional structure synoptic diagram;
Fig. 4 is the plan structure enlarged diagram of Fig. 1 high speed transmission ceramic member;
Fig. 5 be Fig. 1 high speed transmission ceramic member look up the structure enlarged diagram;
Fig. 6 is the plan structure enlarged diagram of direct current signal ceramic member among Fig. 1;
Fig. 7 be among Fig. 1 the direct current signal ceramic member look up the structure enlarged diagram;
Wherein: 1, metal chassis 2, metal body of wall 3, optical fiber tube 4, high-speed transfer ceramic member 5, direct current signal ceramic member 6, metal lead wire 7, cover plate 8, coupled transfer signalling channel.
Embodiment
Dash area represents metallization pattern among Fig. 1-2 and the 4-7, refers to vertical view all around all around herein.As Figure 1-3, a kind of four tunnel transmission coupled structure photoelectricity receiver module shells comprise a metal chassis 1, four sides metal body of wall 2, two optical fiber tubes 3, a high-speed transfer ceramic member 4, two direct current signal ceramic members 5, many metal lead wires 6 and a cover plate 7.Two direct current signal ceramic members 5 are welded on the metal chassis 1 and are oppositely arranged, high-speed transfer ceramic member 4 is welded on the metal chassis 1, optical fiber tube 3 is welded on the metal body of wall 2 corresponding with high-speed transfer ceramic member 4, metal body of wall 2, direct current signal ceramic member 5, high-speed transfer ceramic member 4, optical fiber tube 3, metal chassis 1 and cover plate 7 are welded into seal chamber, be welded with metal lead wire 6 on the bottom surface of high-speed transfer ceramic member 4 and direct current signal ceramic member 5, high-speed transfer ceramic member 4 is provided with four tunnel coupled transfer signalling channels 8.
Shown in Fig. 4-5, the high-speed transfer ceramic member is rectangle, and the front is step surface, and four tunnel coupled transfer signalling channels of arranging side by side on the step surface can be transmitted four road differential signals.There is metallized area at the back side of high-speed transfer ceramic member, weld metal lead-in wire usefulness, and the metallization pattern of two faces links to each other by the internal metallization interconnected pores.Each road coupled transfer signalling channel is two signal transmssion lines, positive metallized area corresponding to metallized area and the back side is the electric signal transmission path of difference output, adopt the microwave transmission theory to design, two signal transmssion lines are wanted full symmetric, and the metallized area with ground connection between the two-way coupled transfer signalling channel separates.
Shown in Fig. 6-7, the direct current signal ceramic member is rectangle, and the front is step surface, and metallized area is arranged on the step surface, and there is metallized area at the back side, welding lead usefulness, and the metallization pattern of two faces links to each other by the internal metallization interconnected pores.
As shown in Figure 1, there are four square mount pads on the square metal chassis, and circular hole is arranged on the mount pad, installs and fixes screw.Metal chassis and metal body of wall, optical fiber tube, high-speed transfer ceramic member, direct current signal ceramic member, metal lead wire weld together; cover plate is parallel seam welding; form seal chamber, for chip and internal circuit provide electric signal transmission path, mechanical support and environmental protection.
The principal ingredient that high-speed transfer ceramic member and direct current signal ceramic member are is aluminium oxide ceramics, and component content is 90%～96%, adopts the multi-layer ceramics technology to make.Adopt casting technique to make the aluminium oxide ceramic chips, process aperture with mould and punch device at ceramic chips, in aperture, fill tungsten slurry or molybdenum slurry, make metallization pattern on the ceramic chips surface with tungsten slurry or molybdenum slurry, laminated ceramic chips forces together into the green array, each array comprises a plurality of green spares, is cut into single square green spare with cutting equipment again, carries out high temperature sintering again.Ceramic member with metal chassis, metal body of wall, optical fiber tube, metal lead wire welding, carries out surface gold-plating through nickel plating again, makes finished product.
Compare the synthetic 40G photoelectricity receiver module of 4 10Gbps modules, four tunnel transmission coupled structure photoelectricity receiver module shells have following significant advantage:
(1) shell has more high integration, opto-electronic conversion chip and circuit that can encapsulated delivery four road signals, and the coupling of more convenient photosignal and conversion can improve the transfer efficiency of photosignal, are applicable to high-end photoelectricity receiver module encapsulation.
(2) four road signals transmission coupling interface is in a shell, and distance is little to each other, and four road signal transmission distances of module are more approaching to be equated, the phase differential between signal of having reduced not go the same way has reduced signal transmission attenuation.
(3) four road signal transmission modules replace original four modules, and convenient the installation reduced the volume of whole module, have reduced the difficulty of module coupling, are conducive to Optical Receivers to more high transfer rate development.
Claims (4)
1. one kind four the tunnel transmits coupled structure photoelectricity receiver module shell, it is characterized in that comprising metal chassis (1), metal body of wall (2), optical fiber tube (3), high-speed transfer ceramic member (4), direct current signal ceramic member (5), metal lead wire (6) and cover plate (7), direct current signal ceramic member (5) is welded on respectively the both sides, front and back of metal chassis (1) and welds with metal body of wall (2), high-speed transfer ceramic member (4) is welded on the left side of metal chassis and welds with the metal body of wall, optical fiber tube (3) is welded on the metal body of wall (2) on right side, metal body of wall (2), direct current signal ceramic member (5), high-speed transfer ceramic member (4), optical fiber tube (3), metal chassis (1) and cover plate (7) are welded into seal chamber, the bottom surface of high-speed transfer ceramic member (4) and direct current signal ceramic member (5) is provided with metal lead wire (6), and high-speed transfer ceramic member (4) is provided with four tunnel coupled transfer signalling channels (8).
2. according to claim 1 a kind of four the tunnel transmit coupled structure photoelectricity receiver module shells, the cross section that it is characterized in that described high-speed transfer ceramic member (4) is step surface, front four tunnel coupled transfer signalling channels (8) of arranging side by side, each road coupled transfer signalling channel is two signal transmssion lines, front-side metallization zone and metallized area corresponding to the back side are the electric signal transmission passage of difference output, two signal transmssion line full symmetrics, metallized area with ground connection between the two-way coupled transfer signalling channel separates, the back side of high-speed transfer ceramic member (4) is provided with metallized area, be used for weld metal lead-in wire (6), positive metallized area is connected metallized area by the connection of metallization interconnect hole with the back side.
3. according to claim 1 a kind of four the tunnel transmit coupled structure photoelectricity receiver module shells, the cross section that it is characterized in that described direct current signal ceramic member (5) is step surface, step surface is provided with metallized area, the back side is provided with metallized area, and the metallized area of two faces connects by inner metallization interconnect hole.
4. a kind of four tunnel transmission coupled structure photoelectricity receiver module shells according to claim 1 is characterized in that four angles of described metal chassis (1) are provided with mount pad (9), and mount pad (9) is provided with via hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104980014A CN102981222A (en) | 2012-11-29 | 2012-11-29 | Photoelectric receiving module casing with four-channel transmitting and coupling structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104980014A CN102981222A (en) | 2012-11-29 | 2012-11-29 | Photoelectric receiving module casing with four-channel transmitting and coupling structure |
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| CN102981222A true CN102981222A (en) | 2013-03-20 |
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| CN2012104980014A Pending CN102981222A (en) | 2012-11-29 | 2012-11-29 | Photoelectric receiving module casing with four-channel transmitting and coupling structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113114364A (en) * | 2021-04-09 | 2021-07-13 | 深圳市爱得乐电子有限公司 | High-speed transmission integrated coupling structure photoelectric receiving system |
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| CN1479125A (en) * | 2002-08-26 | 2004-03-03 | 中国科学院半导体研究所 | Semiconductor laser butterfly packaging device |
| CN201611661U (en) * | 2010-03-05 | 2010-10-20 | 河北中瓷电子科技有限公司 | Metal-ceramic packaging shell for a photoelectric receiving module |
| CN201611399U (en) * | 2010-03-05 | 2010-10-20 | 河北中瓷电子科技有限公司 | Shell for photoelectric emission module |
| CN201623361U (en) * | 2010-03-05 | 2010-11-03 | 河北中瓷电子科技有限公司 | Metal-ceramic insulator packaging structure for semiconductor laser |
| CN201629338U (en) * | 2010-03-05 | 2010-11-10 | 河北中瓷电子科技有限公司 | Metal-ceramic coaxial packaging outer casing for photoelectric receiving assembly |
-
2012
- 2012-11-29 CN CN2012104980014A patent/CN102981222A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1479125A (en) * | 2002-08-26 | 2004-03-03 | 中国科学院半导体研究所 | Semiconductor laser butterfly packaging device |
| CN201611661U (en) * | 2010-03-05 | 2010-10-20 | 河北中瓷电子科技有限公司 | Metal-ceramic packaging shell for a photoelectric receiving module |
| CN201611399U (en) * | 2010-03-05 | 2010-10-20 | 河北中瓷电子科技有限公司 | Shell for photoelectric emission module |
| CN201623361U (en) * | 2010-03-05 | 2010-11-03 | 河北中瓷电子科技有限公司 | Metal-ceramic insulator packaging structure for semiconductor laser |
| CN201629338U (en) * | 2010-03-05 | 2010-11-10 | 河北中瓷电子科技有限公司 | Metal-ceramic coaxial packaging outer casing for photoelectric receiving assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113114364A (en) * | 2021-04-09 | 2021-07-13 | 深圳市爱得乐电子有限公司 | High-speed transmission integrated coupling structure photoelectric receiving system |
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Application publication date: 20130320 |