CN2909785Y - Tool for preventing tin sticking onto golden finger contact - Google Patents
Tool for preventing tin sticking onto golden finger contact Download PDFInfo
- Publication number
- CN2909785Y CN2909785Y CN 200620002420 CN200620002420U CN2909785Y CN 2909785 Y CN2909785 Y CN 2909785Y CN 200620002420 CN200620002420 CN 200620002420 CN 200620002420 U CN200620002420 U CN 200620002420U CN 2909785 Y CN2909785 Y CN 2909785Y
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- CN
- China
- Prior art keywords
- golden finger
- printed substrate
- finger contact
- tool
- shielding part
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A printed circuit board, preventing goldfinger from contacting with tin comprising a group of goldfinger contacts arranged on both sides of one edge of the printed circuit board. The furniture includes a cover department and a clamping department, wherein the clamping department is connected with the cover department to clip the printed circuit board, enabling the cover department to cover goldfinger contact. Therefore, the cover department could be used to cover goldfinger on the printed circuit board, preventing the spatter welding block produced during the welding process from attaching to the goldfinger of the printed circuit board.
Description
Technical field
The utility model relates to a kind of auxiliary fixture (fixture) of printed substrate, and particularly is attached to the tool of the golden finger contact on the printed substrate relevant for a kind of welding block that splashes that prevents in back welding process (reflow).
Background technology
(Printed Wiring Board PWB) is coincided by multi-layered patterned conductive layer and multilayer dielectric layer to form printed substrate.The application of printed substrate is quite extensive, for example is applied to the assembly support plate as motherboard, memory modules or adapter.In order to allow printed substrate can be electrically connected to another printed substrate, modal mode is exactly after forming row's golden finger contact (gold finger) on the plate edge of printed substrate, and the plate edge with printed substrate inserts the slot (socket) that has been installed on another printed substrate again.Therefore, can make printed substrate to electrically connect mutually by contacting between the flexible terminal in the golden finger of the plate edge of printed substrate and the slot with another printed substrate.
The printed substrate that Figure 1A and Figure 1B are respectively the known a kind of Mini-PCI of support interface before assembling electric sub-member with assembling electric sub-member after schematic perspective view.Please refer to Figure 1A and Figure 1B, in order to meet the demand on the processing procedure, can allow single substrate 100 comprise most printed substrates 110 simultaneously with identical wiring, then reserve a cutting zone 102 between adjacent two printed substrates 110, and substrate 100 also comprises the crimp area 104 that two transmissions are used in the outside of these printed substrates 110, and crimp area 104 also has the perforate 106 of a plurality of location.To organize after electronic building brick is assembled to these printed substrates 110 respectively and finishes functional test more, above-mentioned cutting zone 102 and crimp area 104 are excised or fractureed, to form a plurality of independences separately and to be equipped with the printed substrate 110 of a plurality of electronic building bricks.Two sides that it should be noted that a plate edge of each printed substrate 110 is arranged with one group of golden finger contact 112 respectively, in order to the contact as the slot (not illustrating) that electrically connects the Mini-PCI interface.
Please refer to Figure 1A, to printed substrate 110, palpus forms a solder layer (solder layer) in the mode of screen painting (screen printing) earlier on the surface of the joint sheet of printed substrate 110 at assembling electric sub-member.In this example, the joint sheet of printed substrate 110 comprises driving component joint sheet 122 and 124, passive component joint sheet 124 and metal isolation frame joint sheet 126 etc.Then, please refer to Figure 1B, after being assembled in driving component 132 and 134, passive component 136 and metal isolation frame 138 on its pairing joint sheet 122,124,126 and 128 respectively, then carry out a back welding process with high-temperature fusion solder layer 106, make driving component 132 and 134, passive component 136 and metal isolate electric connection mutually between frame 138 and its pairing joint sheet 122,124,126 and 128, also isolate covering metal isolation lid (not illustrating) on the frame 138 at last, in order to a screening can (shield enclosure) to be provided at metal.
It should be noted that, may be attached to owing to the quick-fried welding block that splashes of Yin Gaowenxi in reflow process on arbitrary golden finger contact 112 of these printed substrates 110, so known technology is to utilize resistant to elevated temperatures adhesive tape (not illustrating) to be attached to whole surface of arranging golden finger contact 112, to prevent 112 tin sticky of golden finger contact.But, use the attaching adhesive tape to prevent that the practice of golden finger contact 112 tin sticky from will increase the cost that the cost, the cost of adhesive tape, the cost that removes adhesive tape and the removing that attach adhesive tape are attached to the cull on golden finger contact surface extraly.In addition, because the deflection of the thermal stress substrate that difference causes 100 of the different parts of substrate 100 in the process of reflow own, this causes metal to isolate between frame 138 and its pairing metal isolation frame joint sheet 128 easily can't fluid-tight engagement, thereby produce the problem of empty weldering, and then reduce metal and isolate the yield that frame 138 is assembled to printed substrate 110.
The utility model content
The purpose of this utility model provides a kind of tool that prevents the tin sticky of golden finger contact.
For achieving the above object, the tool that prevents the tin sticky of golden finger contact that the utility model provides, be applicable to a printed substrate, this printed substrate has one first group of golden finger contact and one second group of golden finger contact, it is arranged in respectively on the two sides of a plate edge of this printed substrate, and this tool comprises:
One first shielding part; And
At least one clamping part connects this first shielding part, in order to this printed substrate of clamping, so that this first shielding part hides this first group of golden finger contact.
The described tool that prevents the tin sticky of golden finger contact also comprises:
One first slot layer is connected in this first shielding part, and between this first shielding part and this printed substrate.
The described tool that prevents the tin sticky of golden finger contact also comprises:
One second shielding part is connected in this clamping part, and when this this printed substrate of clamping part clamping, this second shielding part hides this second group of golden finger contact.
The described tool that prevents the tin sticky of golden finger contact also comprises:
One stopper section connects this clamping part, in order to this plate edge of this printed substrate of butt.
The described tool that prevents the tin sticky of golden finger contact, wherein this first shielding part, this second shielding part, this stopper section and this clamping part are integrally formed.
The described tool that prevents the tin sticky of golden finger contact, wherein this first shielding part, this second shielding part and this stopper section are integrally formed as an assembly, and this clamping part is another assembly that is independent of this assembly.
The described tool that prevents the tin sticky of golden finger contact, wherein when this this printed substrate of clamping part clamping, the distance between this first shielding part and this printed substrate is less than the distance between this second shielding part and this printed substrate.
The described tool that prevents the tin sticky of golden finger contact also comprises:
One second slot layer is connected in this second shielding part, and between this second shielding part and this printed substrate.
Based on above-mentioned, the utility model hides the golden finger contact of printed substrate by shielding part, to prevent that in back welding process Yin Gaowenxi is quick-fried and welding block that splash is attached on the golden finger contact of printed substrate.
Description of drawings
Figure 1A is the schematic perspective view of printed substrate before assembling electric sub-member of the known a kind of Mini-PCI of support interface.
Figure 1B is the schematic perspective view of printed substrate behind assembling electric sub-member of Figure 1A.
Fig. 2 is a kind of stereogram that prevents the tool of golden finger contact tin sticky of first embodiment of the present utility model.
Fig. 3 is the cutaway view along the I-I line of Fig. 2.
Fig. 4 is a kind of cutaway view that prevents the tool of golden finger contact tin sticky of second embodiment of the present utility model.
Fig. 5 is a kind of cutaway view that prevents the tool of golden finger contact tin sticky of the 3rd embodiment of the present utility model.
Fig. 6 is a kind of cutaway view that prevents the tool of golden finger contact tin sticky of the 4th embodiment of the present utility model.
Fig. 7 is a kind of cutaway view that prevents the tool of golden finger contact tin sticky of the 5th embodiment of the present utility model.
Embodiment
For above-mentioned and other purpose, feature and advantage of the present utility model can be become apparent, a plurality of embodiment cited below particularly, and conjunction with figs. are described in detail below.
Fig. 2 is a kind of stereogram that prevents the tool of golden finger contact tin sticky of first embodiment of the present utility model, and Fig. 3 is the cutaway view along the I-I line of Fig. 2.The tool 300 that prevents the tin sticky of golden finger contact of first embodiment is applicable to a printed substrate 200.As shown in Figure 2, printed substrate 200 has two groups of golden finger contacts 212 and 214, and it is arranged in respectively on the two sides 202 and 204 of printed substrate 200 plate edge.
For the golden finger contact 212 that hides printed substrate 200 and the tool 300 that is fixed to printed substrate 200, the first embodiment comprise one first shielding part 312 and a plurality of clamping part 320.These clamping parts 320 all connect first shielding part 312.When these clamping part 320 clamping printed substrates 200, first shielding part 312 can hide these golden finger contacts 212, with the welding block that prevents to splash in the reflow process surface attached to these golden finger contacts 212.In addition, can strengthen printed substrate 200 by first shielding part 312 resists in elevated temperature heat and expands and crooked ability, the probability of empty weldering takes place in the electronic building brick of desiring to be assembled on the printed substrate 200 with reduction (not illustrating) in reflow process, and then improves the assembling yield of the electronic building brick of printed substrate 200.
In first embodiment, these clamping parts 320 are to utilize the mode of resilient clamp to come clamping printed substrate 200.For the ease of allowing the plate edge of these clamping part 320 clamping printed substrates 200, the front end of these clamping parts 320 has a V-arrangement opening, so that clamping part 320 is assembled to the plate edge of printed substrate 200.In first embodiment, tool 300 only has two clamping parts 320, but in the embodiment that other does not show, tool also can only have one or more clamping part.
For the tool 300 of golden finger contact 214, the first embodiment that hide printed substrate 200 also can comprise one second shielding part 314, it connects these clamping parts 320.When these clamping part 320 clamping printed substrates 200, second shielding part 314 can hide these golden finger contacts 214, with the welding block that prevents from reflow process, to splash attached on these golden finger contacts 214.
For the ease of defining the covering scope of first shielding part 312 and second shielding part 314, the tool 300 of first embodiment also can comprise a stopper section 316 (as shown in Figure 3), and it connects clamping part, in order to the plate edge of butt printed substrate 300.Therefore, the user is after manually being assembled to printed substrate 200 with the clamping part 320 of tool 300, stopper section 316 props up the plate edge of printed substrate 200, makes the covering scope of the win shielding part 312 and second shielding part 314 contain this two groups of golden finger contacts 212 and golden finger contact 214 respectively.
In first embodiment, first shielding part 312, second shielding part 314, stopper section 316 and these clamping parts 320 of tool 300 can be integrally formed as single component.In other words, can utilize single component to constitute first shielding part 312, second shielding part 314, stopper section 316 and these clamping parts 320.When tool 300 was single component, the material of tool 300 was can be for stainless steel or other high temperature resistant and be difficult for the material of tin sticky.
Fig. 4 is a kind of cutaway view that prevents the tool of golden finger contact tin sticky of second embodiment of the present utility model.Please refer to Fig. 4, are reflexed shapes compared to 420 of the clamping parts of the tool 400 of clamping part 320, the second embodiment of the constriction shape of Fig. 3, and have the V-type opening equally, so that clamping part 420 assemblings are fixed to the plate edge of printed substrate 200.
Fig. 5 is a kind of cutaway view that prevents the tool of golden finger contact tin sticky of the 3rd embodiment of the present utility model.Please refer to Fig. 5, tool 300 compared to Fig. 3,500 of the tools of the 3rd embodiment are the relative positions that changes two shell fragments 522 of clamping part 520, make that the distance between first shielding part 512 and the printed substrate 200 is less than the distance between second shielding part 514 and the printed substrate 200 when tool 500 is assembled to printed substrate 200.Such design can be so that the gap width between first shielding part 512 and the printed substrate 200 reduces, to be reduced in the welding block that splashes in the reflow process attached to the possibility on these golden finger contacts 212.
Fig. 6 is a kind of cutaway view that prevents the tool of golden finger contact tin sticky of the 4th embodiment of the present utility model.Please refer to Fig. 6, tool 300 compared to Fig. 3, the tool 600 of the 4th embodiment also comprises one first layer slot 622, it is connected in first shielding part 612, and between first shielding part 612 and printed substrate 200, in order to filling up the slit between first shielding part 612 and the printed substrate 200, to be reduced in the welding block that splashes in the reflow process attached to the possibility on these golden finger contacts 212.Similarly, the tool 600 of the 4th embodiment also comprises one second layer slot 624, it is connected in second shielding part 614, and between second shielding part 614 and printed substrate 200, in order to filling up the slit between second shielding part 614 and the printed substrate 200, to be reduced in the welding block that splashes in the reflow process attached to the possibility on these golden finger contacts 214.In the 4th embodiment, first layer slot 622 and second layer slot 624 can be respectively a bonding jumper, for example aluminum strip.In the embodiment that other does not show, first layer slot 622 and second layer slot 624 can be a two side with aluminum strip of linear grooves.
Fig. 7 is a kind of cutaway view that prevents the tool of golden finger contact tin sticky of the 5th embodiment of the present utility model.Please refer to Fig. 7, tool 300 compared to Fig. 3 with the single component making, first shielding part 712, second shielding part 714 and the stopper section 716 of the tool 700 of the 5th embodiment are to be made into an assembly jointly, it for example is aluminum strip with linear grooves, clamping part 720 then independently is made into another assembly, for example is spring steel.Therefore, but clamping part 720 with snapping to the assembly that forms first shielding part 712, second shielding part 714 and stopper section 716.
In sum, the tool of golden finger contact tin sticky that prevents of the present utility model has following advantage:
(1) hides the golden finger contact of printed substrate by shielding part, be attached to the welding block that prevents from back welding process, to splash on the golden finger contact of printed substrate.
(2) fill up slit between shielding part and the printed substrate by layer slot, to be reduced in the welding block that splashes in the reflow process attached to the possibility on the golden finger contact.
(3) can strengthen printed substrate by shielding part and resist in elevated temperature heat and expand and crooked ability, reducing the probability that empty weldering takes place electronic building brick in reflow process, and then the assembling yield of the electronic building brick of raising printed substrate.
In addition, the tool of golden finger contact tin sticky that prevents of the present utility model is except that the back welding process that is applicable to the Mini-PCI adapter, also applicable to other PCI adapter and Mini express adapter etc., in other words, as long as the plate edge of printed substrate has the golden finger contact, when such printed substrate carries out back welding process, just can reduce welding block attached to the possibility on the golden finger contact by the tool of golden finger contact tin sticky that prevents of the present utility model.
Though the utility model is described as above with a plurality of embodiment; right its is not in order to limit the utility model; anyly have the knack of this technology personage; in not breaking away from spirit and scope of the present utility model; when can doing a little change and retouching, therefore protection range of the present utility model is as the criterion when looking the content that claim defines.
Claims (8)
1. tool that prevents the tin sticky of golden finger contact, be applicable to a printed substrate, it is characterized in that this printed substrate has one first group of golden finger contact and one second group of golden finger contact, it is arranged in respectively on the two sides of a plate edge of this printed substrate, and this tool comprises:
One first shielding part; And
At least one clamping part connects this first shielding part, and this printed substrate of clamping, this first shielding part hide this first group of golden finger contact.
2. the tool that prevents the tin sticky of golden finger contact as claimed in claim 1 is characterized in that, also comprises:
One first slot layer is connected in this first shielding part, and between this first shielding part and this printed substrate.
3. the tool that prevents the tin sticky of golden finger contact as claimed in claim 1 is characterized in that, also comprises:
One second shielding part is connected in this clamping part, and when this this printed substrate of clamping part clamping, this second shielding part hides this second group of golden finger contact.
4. the tool that prevents the tin sticky of golden finger contact as claimed in claim 3 is characterized in that, also comprises:
One stopper section connects this clamping part, this plate edge of this printed substrate of butt.
5. the tool that prevents the tin sticky of golden finger contact as claimed in claim 4 is characterized in that, wherein this first shielding part, this second shielding part, this stopper section and this clamping part are integrally formed.
6. the tool that prevents the tin sticky of golden finger contact as claimed in claim 4 is characterized in that, wherein this first shielding part, this second shielding part and this stopper section are integrally formed as an assembly, and this clamping part is another assembly that is independent of this assembly.
7. the tool that prevents the tin sticky of golden finger contact as claimed in claim 3, it is characterized in that, wherein when this this printed substrate of clamping part clamping, the distance between this first shielding part and this printed substrate is less than the distance between this second shielding part and this printed substrate.
8. the tool that prevents the tin sticky of golden finger contact as claimed in claim 3 is characterized in that, also comprises:
One second slot layer is connected in this second shielding part, and between this second shielding part and this printed substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620002420 CN2909785Y (en) | 2006-01-16 | 2006-01-16 | Tool for preventing tin sticking onto golden finger contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620002420 CN2909785Y (en) | 2006-01-16 | 2006-01-16 | Tool for preventing tin sticking onto golden finger contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2909785Y true CN2909785Y (en) | 2007-06-06 |
Family
ID=38128994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620002420 Expired - Fee Related CN2909785Y (en) | 2006-01-16 | 2006-01-16 | Tool for preventing tin sticking onto golden finger contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2909785Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102404941A (en) * | 2011-12-01 | 2012-04-04 | 昆山明创电子科技有限公司 | Tin-dipping prevention jig for goldfinger |
| CN105667107A (en) * | 2016-01-01 | 2016-06-15 | 广州兴森快捷电路科技有限公司 | Method for preventing golden fingers from being stained by tin |
-
2006
- 2006-01-16 CN CN 200620002420 patent/CN2909785Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102404941A (en) * | 2011-12-01 | 2012-04-04 | 昆山明创电子科技有限公司 | Tin-dipping prevention jig for goldfinger |
| CN105667107A (en) * | 2016-01-01 | 2016-06-15 | 广州兴森快捷电路科技有限公司 | Method for preventing golden fingers from being stained by tin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Peng Peng Electronics (Kunshan) Co., Ltd. Assignor: Zhengwen Sci-Tech Co., Ltd. Contract fulfillment period: 2009.1.1 to 2014.1.1 Contract record no.: 2009990001002 Denomination of utility model: Tool for preventing tin sticking onto golden finger contact Granted publication date: 20070606 License type: Exclusive license Record date: 20090907 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.1.1 TO 2014.1.1; CHANGE OF CONTRACT Name of requester: ZHENGPENG ELECTRONICS( KUNSHAN ) CO., LTD. Effective date: 20090907 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070606 Termination date: 20150116 |
|
| EXPY | Termination of patent right or utility model |