CN102522456B - Process for recycling photodiode - Google Patents
Process for recycling photodiode Download PDFInfo
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- CN102522456B CN102522456B CN201110438929.9A CN201110438929A CN102522456B CN 102522456 B CN102522456 B CN 102522456B CN 201110438929 A CN201110438929 A CN 201110438929A CN 102522456 B CN102522456 B CN 102522456B
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- photodiode
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Abstract
The invention discloses a process for recycling a photodiode, which is used for recycling the photodiode from a light receiving sub-module ROSA, and adopting a pair of flat tongs with a fixing hole and a pair of diagonal pliers with a clamping hole to place the ROSA to be recycled in the fixing hole of the flat tongs for fixing and enabling ROSA golden layers to be exposed out of the fixing hole of the flat tongs. The diagonal pliers with the clamping hole is used for clamping black glue at the lower end of the ROSA golden layer, and slight left-and-right prying is performed until the photodiode is loosened and disassembled. When the photodiode (PD) is recycled from the ROSA by utilizing the process, the ROSA can be fixed in the fixing hole on the flat tongs, the diagonal pliers can be used for clamping a lens of the PD and an inner circle between the golden layers, the whole disassembling process is performed through face contact, uneven stress distribution does not exist basically, the complete PD can be fetched out easily, and recycling yield is improved.
Description
Technical field
The present invention relates to commercial recovery field, relate in particular to a kind of technique that reclaims photodiode.
Background technology
Photodiode (PD, Photo-Diode) the same with general-purpose diode, the semiconductor device being formed by PN junction, there is one direction conductive characteristic, but it is not as rectifier cell in circuit, but light signal being converted to the optoelectronic sensor of the signal of telecommunication, its concrete structure can be referring to Fig. 1.The core cost of optical device is mainly by PD and LD (semiconductor laser, Laser Diode) form, and in whole optical communication production industry, still semi-automatic production mostly, so product first-pass yield is often not high, a lot of products all need to do over again, and for cost-saving, generally can reclaim PD according to producing bad reason.Light-receiving secondary module (ROSA, Receiver Optical Subassembly) by photodiode 100 and ROSA housing 13, after putting black gluing being connected together, formed, concrete structure is referring to the ROSA structural representation of Fig. 2, while reclaiming photodiode from ROSA, be mainly photodiode 100 need to be peeled off out from ROSA housing 13.Owing to comprising lens 11 and gold layer 12 (referring to Fig. 1) in photodiode, PD lens and gold layer are than being easier to damage and larger to PD performance impact, once there is damage and just can only scrap in PD lens and gold layer, therefore in disassembling process, want SC, prevent the situation of lens wound, gold layer wound.
In existing recovery PD technique, conventionally adopt traditional flat-nose pliers and diagonal cutting pliers, for non-slip, first use non-dust cloth to encase flat-nose pliers both sides, then light-receiving secondary module to be torn open (ROSA, Receiver Optical Subassembly) is placed on flat-nose pliers and is clamped, make a Jiao Chu expose flat-nose pliers top, finally with diagonal cutting pliers, clamp PD point glue position, after clamping, left and right gently prizes until PD looses.While being fixedly clamped ROSA due to traditional flat-nose pliers, to utilize movable two cross sections fast and fixed block of flat-nose pliers that ROSA is fixed on to its interstitial site, and when traditional diagonal cutting pliers is clamped PD point glue position, PD is fixed between two clamping swords of diagonal cutting pliers, in whole Dismantlement process, no matter be that contact all mostly with PD be to take a contact as main for flat-nose pliers or diagonal cutting pliers, the Stress non-homogeneity that can cause PD to be subject to, clamping and prizing in process, easily slide, very easily damage PD lens and gold layer, it is not high that PD reclaims qualification rate.
Summary of the invention
The object of this invention is to provide a kind of technique that reclaims photodiode, while solve adopting existing technique to reclaim PD, the easy damaged PD lens that cause due to unbalanced stress and the shortcoming of gold layer, improve and reclaim yield.
In order to realize foregoing invention object, the invention provides a kind of technique that reclaims photodiode, for reclaiming photodiode from light-receiving secondary module ROSA, the flat-nose pliers of described process using band fixing hole and with the diagonal cutting pliers of clamping hole, comprises the steps:
The fixing hole of ROSA to be recycled being put into flat-nose pliers is fixing, and ROSA gold layer is exposed at outside the fixing hole of described flat-nose pliers;
With the black glue of clamping described ROSA gold layer lower end with the diagonal cutting pliers of clamping hole, and left and right gently prizes until photodiode gets loose takes apart.
Preferably, described photodiode also comprises after getting loose and taking apart: by the photodiode the taking apart processing of removing photoresist.
Preferably, before the described fixing hole fixing step of ROSA to be recycled being put into flat-nose pliers, also comprise: wear static wrist and static fingerstall.
Wherein, described that ROSA to be recycled is put into the fixing hole of flat-nose pliers is fixing, is specially: the housing of ROSA to be recycled is fixed on the fixing hole on described flat-nose pliers;
Described use is clamped the black glue of described ROSA gold layer lower end with the diagonal cutting pliers of clamping hole, be specially: with the lens of the clamping hole clamping photodiode on diagonal cutting pliers and the position between gold layer.
Wherein, when ROSA to be recycled is long ROSA, it is fixing that long ROSA just to be recycled puts into the long ROSA fixing hole of flat-nose pliers;
When ROSA to be recycled is short ROSA, it is fixing that short ROSA just to be recycled puts into the short ROSA fixing hole of flat-nose pliers.
Compared with prior art, the present invention has following beneficial effect:
On flat-nose pliers due to process using of the present invention, be provided with the fixedly fixing hole of ROSA, and on the diagonal cutting pliers adopting, be provided with the clamping hole of clamping photodiode, when utilizing technique of the present invention to reclaim PD from ROSA, ROSA can be fixed in the fixing hole on flat-nose pliers, with diagonal cutting pliers clamping hole, clamp the lens of PD and the inner circle between gold layer, the whole process of disassembling is all face contact, does not substantially exist stress distribution inhomogeneous, can easily take out complete PD, improve and reclaim yield.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing:
Fig. 1 is photodiode PD structural representation;
Fig. 2 is ROSA structural representation;
Fig. 3 is the flat-nose pliers structural representation in embodiment of the present invention frock;
Fig. 4 is a use view of flat-nose pliers structure in Fig. 3;
Fig. 5 is the structure of diagonal pliers schematic diagram in embodiment of the present invention frock;
Fig. 6 is the process chart that the embodiment of the present invention reclaims photodiode;
Mark in figure: 1-base plate, 2-screw rod, 3-movable block, 4-fixed block, the long ROSA fixing hole of 5-, the short ROSA fixing hole of 6-, 7-guide runner, 8-proofreads projection, and 8-1-proofreads otch, 9-guide vane end stop, 10-clamps sword, 11-PD lens, 12-PD gold layer, 13-ROSA housing, 100-photodiode.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention reclaims the technique of photodiode, be mainly used in reclaiming photodiode from light-receiving secondary module ROSA, described process using with the flat-nose pliers of fixing hole with the diagonal cutting pliers of clamping hole, technique for better explanation the present invention proposes, first describes the instrument of this process using below.
Referring to Fig. 3, Fig. 4, for the flat-nose pliers structural representation adopting in embodiment of the present invention technique, described flat-nose pliers comprises base plate 1, screw rod 2, movable block 3, fixed block 4, guide runner 7, slider guide (not shown), check and correction projection 8, guide vane end stop 9 and fixing hole.Wherein, slider guide is T shape structure, coordinates with guide runner 7, and guide vane end stop 9 is exiting the over-travel of process for limiting screw rod 2.Guide runner 7 is arranged on the base plate 1 of flat-nose pliers, and the movement of movable block 3 is carried out to slide guide and guiding.On the side contacting with fixed block 4 on described flat-nose pliers movable block 3, be provided with check and correction projection 8, on the side contacting with movable block 3 on described flat-nose pliers fixed block 4, corresponding described check and correction projection is provided with check and correction otch 8-1, when movable block 3 will contact with fixed block 4, first the check and correction projection 8 of corresponding movable block 3 outwardly convexs matches with the check and correction otch on fixed block 4, is conducive to like this precision of the fastening rear ROSA fixing hole of movable block and fixed block.Certainly, the position of check and correction projection and check and correction projection can be exchanged, and proofread otch and be arranged on movable block, and check and correction projection is arranged on fixed block.Because ROSA roughly divides two types dimensionally, a kind of is short ROSA, the shell dimension of itself and PD chips incorporate is shorter, another kind is long ROSA, the shell dimension of itself and PD chips incorporate is longer, therefore on the flat-nose pliers adopting in technique of the present invention, set fixing hole comprises at least one long ROSA fixing hole and at least one short ROSA fixing hole, so that when reclaiming PD, flat-nose pliers can well be fixed the ROSA of two types, fixing hole forms by half hole on movable block 3 being set and being arranged on half hole corresponding on fixed block 4, specifically can be referring to Fig. 4, after being combined with fixed block under the guiding of movable block 3 at slider guide, half hole on movable block 3 is set and is arranged on half hole change corresponding on fixed block 4 and become altogether fixing hole.In the present embodiment, the flat-nose pliers of selecting is the flat-nose pliers that is provided with two long ROSA fixing holes 5 and two short ROSA fixing holes 6, as Fig. 3, the size of described long ROSA fixing hole 5 is consistent with the shell dimension of long Rosa, the size of described short ROSA fixing hole 6 is consistent with the shell dimension of short Rosa, can make like this, in reclaiming PD process, can on flat-nose pliers, select different fixing holes to be fixed it according to the ROSA housing of different size.
It referring to Fig. 5, is the structure of diagonal pliers schematic diagram adopting in embodiment of the present invention technique, the clamping hole 10 arranging on described diagonal cutting pliers forms by being arranged on corresponding two halves hole on diagonal cutting pliers two clamping swords, and the diameter of the clamping hole 10 arranging on described diagonal cutting pliers equals the lens of photodiode and the interior circular diameter between gold layer.Technique of the present invention can be selected the diagonal cutting pliers that a clamping hole is only set on diagonal cutting pliers, also can adopt the diagonal cutting pliers that is provided with a plurality of clamping holes, and shown in Fig. 5 is the diagonal cutting pliers that is provided with two clamping holes.
Introduce the special tool(s) that technique that the embodiment of the present invention reclaims photodiode adopts above, below in conjunction with Fig. 6, introduced in detail technological process of the present invention.
Referring to Fig. 6, the process chart for embodiment of the present invention recovery photodiode, comprises the steps:
S101: wear static wrist and static fingerstall.
S102: the fixing hole of ROSA to be recycled being put into flat-nose pliers is fixing, is exposed at outside the fixing hole of described flat-nose pliers ROSA gold layer;
S103: with the black glue of clamping described ROSA gold layer lower end with the diagonal cutting pliers of clamping hole, and left and right gently prizes until photodiode gets loose takes apart;
S104: by the photodiode the taking apart processing of removing photoresist.
The fixing hole of described in step S102, ROSA to be recycled being put into flat-nose pliers is fixing, be specially: the housing of ROSA to be recycled is fixed on the fixing hole on described flat-nose pliers, when ROSA to be recycled is long ROSA, it is fixing that long ROSA just to be recycled puts into the long ROSA fixing hole of flat-nose pliers; When ROSA to be recycled is short ROSA, it is fixing that short ROSA just to be recycled puts into the short ROSA fixing hole of flat-nose pliers.And described in step S103 with the black glue of clamping described ROSA gold layer lower end with the diagonal cutting pliers of clamping hole, be specially: with the position between the lens of the clamping hole clamping photodiode on diagonal cutting pliers and gold layer.
Take below and adopt technique of the present invention from short ROSA, to reclaim PD as example, PD removal process is described.
While reclaiming PD from short ROSA, will wait to tear open on the short ROSA fixing hole that short ROSA is placed in Fig. 3 flat-nose pliers, and rotary screw makes movable fast and fixed block that short ROSA is clamped, a Jiao Chu is exposed above flat-nose pliers; With the diagonal cutting pliers in Fig. 5, clamp the position (putting glue position) between PD lens and gold layer, left and right gently prizes, until PD looses, just can take out very easily complete PD, the process of disassembling because whole is all face contact, does not substantially exist stress distribution inhomogeneous.It should be noted that, diagonal cutting pliers clamping PD point Jiao Chu should be the bottommost of cushion rubber, makes diagonal cutting pliers subsides activity soon and fixed block surface, to avoid diagonal cutting pliers to slide, crushes PD.If cushion rubber is too narrow, cannot clamp, available hand is down pressed diagonal cutting pliers and is prevented from landing or use iron hammer to beat blade on cushion rubber, first carving one indenture, then clamps indenture clamping with diagonal cutting pliers, prizes in process, if sensation diagonal cutting pliers is by landing, should again clamp.From long ROSA, reclaim PD process identical with following process, therefore do not repeat.
Inventor, for the yield that relatively prior art processes and technique of the present invention reclaim, drops into respectively the ROSA of 100 PD to be recycled.Adopt respectively the technique in existing technique and this practical embodiment to disassemble, the PD quantity of intact time compared, obtain table one data:
Table one:
By table one, can be found out, adopt technique of the present invention from ROSA, to reclaim PD yield and improve a lot.
Owing to being provided with the fixedly fixing hole of ROSA on the flat-nose pliers in technique of the present invention, and on diagonal cutting pliers, be provided with clamping photodiode clamping hole, when utilizing technique of the present invention to reclaim PD from ROSA, ROSA can be fixed in the fixing hole on flat-nose pliers, and diagonal cutting pliers can clamp the lens of PD and the inner circle between gold layer with clamping hole, the whole process of disassembling is all face contact, does not substantially exist stress distribution inhomogeneous, can easily take out complete PD, improve and reclaim yield.
Disclosed all features in this specification, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing), unless narration especially all can be replaced by other equivalences or the alternative features with similar object.That is,, unless narration especially, each feature is an example in a series of equivalences or similar characteristics.
The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature or any new combination disclosing in this manual, and the arbitrary new method disclosing or step or any new combination of process.
Claims (4)
1. reclaim a technique for photodiode, for reclaiming photodiode from light-receiving secondary module ROSA, it is characterized in that, the flat-nose pliers of described process using band fixing hole and with the diagonal cutting pliers of clamping hole, comprising:
The fixing hole of ROSA to be recycled being put into flat-nose pliers is fixing, is specially: the housing of ROSA to be recycled is fixed on the fixing hole on described flat-nose pliers, ROSA gold layer is exposed at outside the fixing hole of described flat-nose pliers;
Black glue with clamp described ROSA gold layer lower end with the diagonal cutting pliers of clamping hole, is specially: with the position between the lens of the clamping hole clamping photodiode on diagonal cutting pliers and gold layer, and left and right gently prizes until photodiode gets loose takes apart.
2. the technique of recovery photodiode as claimed in claim 1, is characterized in that, described photodiode also comprises after getting loose and taking apart: by the photodiode the taking apart processing of removing photoresist.
3. the technique of recovery photodiode as claimed in claim 2, is characterized in that, before the described fixing hole fixing step of ROSA to be recycled being put into flat-nose pliers, also comprises: wear static wrist and static fingerstall.
4. reclaim as claimed any one in claims 1 to 3 the technique of photodiode, it is characterized in that:
When ROSA to be recycled is long ROSA, it is fixing that long ROSA just to be recycled puts into the long ROSA fixing hole of flat-nose pliers;
When ROSA to be recycled is short ROSA, it is fixing that short ROSA just to be recycled puts into the short ROSA fixing hole of flat-nose pliers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110438929.9A CN102522456B (en) | 2011-12-23 | 2011-12-23 | Process for recycling photodiode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110438929.9A CN102522456B (en) | 2011-12-23 | 2011-12-23 | Process for recycling photodiode |
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| Publication Number | Publication Date |
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| CN102522456A CN102522456A (en) | 2012-06-27 |
| CN102522456B true CN102522456B (en) | 2014-03-12 |
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| CN201110438929.9A Active CN102522456B (en) | 2011-12-23 | 2011-12-23 | Process for recycling photodiode |
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Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6860652B2 (en) * | 2003-05-23 | 2005-03-01 | Intel Corporation | Package for housing an optoelectronic assembly |
| US7559705B2 (en) * | 2004-01-26 | 2009-07-14 | Opnext, Inc. | Optical ROSA for long reach optical transceiver |
| KR20110044398A (en) * | 2009-10-23 | 2011-04-29 | (주)디나옵틱스 | Transmitter/receiver optical sub assembly of transceiver |
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