CN105430882B - Flexible circuit board and mobile terminal - Google Patents
Flexible circuit board and mobile terminal Download PDFInfo
- Publication number
- CN105430882B CN105430882B CN201511026316.9A CN201511026316A CN105430882B CN 105430882 B CN105430882 B CN 105430882B CN 201511026316 A CN201511026316 A CN 201511026316A CN 105430882 B CN105430882 B CN 105430882B
- Authority
- CN
- China
- Prior art keywords
- pad
- circuit board
- signal
- flexible circuit
- ground connection
- Prior art date
- 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
Links
- 239000000758 substrate Substances 0.000 claims abstract description 47
- 239000002184 metal Substances 0.000 claims abstract description 23
- 229910052751 metal Inorganic materials 0.000 claims abstract description 23
- 239000013039 cover film Substances 0.000 claims description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 17
- 239000004020 conductor Substances 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- 239000011889 copper foil Substances 0.000 description 16
- 238000005530 etching Methods 0.000 description 3
- -1 Polyethylene Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0216—Reduction of cross-talk, noise or electromagnetic interference
- H05K1/0218—Reduction of cross-talk, noise or electromagnetic interference by printed shielding conductors, ground planes or power plane
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/78—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by the contacts or the contact sites
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2239/00—Miscellaneous
- H01H2239/008—Static electricity considerations
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10053—Switch
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Structure Of Printed Boards (AREA)
Abstract
A kind of flexible circuit board and mobile terminal, the flexible circuit board includes substrate layer, it is grounded cabling, signal lead and trigger assembly, the ground connection cabling and the signal lead are laminated on the substrate layer, the trigger assembly includes signal pad, ground pad and elastic metal dome, the ground pad is around the signal pad side, and the signal pad is connected into the signal lead, the ground pad connects the ground connection cabling, so that the easy electrostatic of ground pad is introduced on ground connection cabling, so as to eliminate electrostatic, so as to prevent interference of the electrostatic to signal lead, so as to improve the performance of the flexible circuit board.
Description
Technical field
The present invention relates to the communications field more particularly to a kind of flexible circuit board and mobile terminals.
Background technology
Button trigger circuit in current many flexible circuit board sets there are two concentric circles to trigger pad, usual outer circle weldering
Disk connects signal line, and inner circle pad connects ground path, by installing a short-circuit shrapnel on button, when a key is pressed
Short-circuit shrapnel contradicts outer circle pad and the short circuit of inner circle pad simultaneously, so that signal line and ground path are connected, so as to
Trigger signal circuit sends a signal instruction, when unclamping button so that signal line completes the transmission of signal instruction so that
The functional unit being connected with signal line is executed instruction according to signal instruction.It is leaned on yet with outer circle pad in flexible circuit board
Nearly others circuit, so that outer circle pad readily accesses the object of other static electrifications, such as human hand, mechanical key, electricity
Subcomponent etc., so outer circle pad is easier to receive electrostatic interference, so as to which electrostatic interference is easily transferred to letter by outer circle pad
Electrostatic interference is easily introduced into master chip or other functional units, causes master chip or other work(by number circuit, signal line
Energy element failure causes electrostatic interference to harass along signal line on adjacent letter circuit, disturbs other electronics members
Part affects the performance of complete machine, makes equipment that can not work normally, so as to reduce the performance of flexible circuit board.
The content of the invention
Technical problem to be solved of the embodiment of the present invention is, provide a kind of flexible circuit board for improving performance and
Mobile terminal.
The present invention provides a kind of flexible circuit board, wherein, the flexible circuit board includes substrate layer, ground connection cabling, signal
Cabling and trigger assembly, the ground connection cabling and the signal lead are laminated on the substrate layer and are arranged at intervals, described to touch
Hair component, which includes signal pad, ground pad and elastic metal dome, the signal pad that geometric centre axes coincide, to be fixed
In the relatively described signal lead one side of the substrate layer, it is connected between the signal pad and the signal lead through described
First conduct piece of substrate layer, the ground pad are grounded around the signal pad side, and described between cabling
The second conduct piece through the base is connected with, the elasticity metal dome is electric conductor, and the outer rim of the elasticity metal dome is supported
It touches in the ground pad, so that the elasticity metal dome, when being pressed, the geometric center of the elasticity metal dome contacts at institute
Signal pad, the signal pad and ground pad short circuit are stated, the signal lead is triggered and sends signal.
Wherein, the ground connection cabling and the signal lead are located at described substrate layer the same side.
Wherein, the ground connection cabling and the signal lead are located at the both sides that the substrate layer is oppositely arranged respectively, described
Second conduct piece is conductor cable.
Wherein, the flexible circuit board includes the first cover film, and first cover layer, which is laminated on the substrate layer, to deviate from
The trigger assembly one side, covers the signal lead.
Wherein, the flexible circuit board further includes the second cover film, and second cover film is covered in the substrate layer back of the body
From the signal lead one side, the signal pad and the ground pad pass through second cover film.
Wherein, second cover film sets empty window around the ground pad, and the sky window is walked with the ground connection
Line is oppositely arranged, and the earth conductor for connecting the ground connection cabling is equipped in the sky window.
Wherein, the ground connection cabling and the signal lead are copper foil.
Wherein, the number of the trigger assembly is multiple that multiple trigger assembly arrays are on the substrate layer.
Wherein, the substrate layer is flexible layer.
The present invention also provides a kind of mobile terminal, wherein, the mobile terminal includes body, arranged on the body interior
Flexible circuit board described in mainboard and above-mentioned any one, the flexible circuit board be arranged on the body interior, and with the master
Plate is electrically connected.
Flexible circuit board provided by the invention and mobile terminal, it is all around the signal pad by the ground pad
Side, and the signal pad is connected into the signal lead, the ground pad connects the ground connection cabling, so that described
The easy electrostatic of ground pad is introduced on ground connection cabling, so as to eliminate electrostatic, so as to prevent interference of the electrostatic to signal lead, from
And improve the performance of the flexible circuit board.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure diagram of the flexible circuit board of first embodiment provided by the invention；
Fig. 2 is the top view of the flexible circuit board of Fig. 1；
Fig. 3 is the structure diagram of the flexible circuit board of second embodiment provided by the invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment belongs to the scope of protection of the invention.
It please refers to Fig.1 and Fig. 2, the present invention provides a kind of mobile terminal of embodiment, including body (not indicated in figure), set
In the mainboard (not indicated in figure) and flexible circuit board 100 of the body interior, the flexible circuit board 100 is arranged on described
Internal portion, and be electrically connected with the mainboard.
The mobile terminal can be the intelligent mobile terminals such as mobile phone, computer, tablet, handheld device or media player.
In the present embodiment, illustrated so that the mobile terminal is mobile phone as an example.
The flexible circuit board 100 includes substrate layer 10, ground connection cabling 21, signal lead 22 and trigger assembly 30, described
Ground connection cabling 21 and the signal lead 22 are laminated on the substrate layer 10, and are mutually completely cut off.The trigger assembly 30 wraps
Include signal pad 31, ground pad 32 and elastic metal dome 33, grey signal pad 31 in Fig. 1 and Fig. 2, black is ground pad
32.The signal pad 31 is in the form of annular discs, the substrate layer 10 is fixed on away from 22 one side of signal lead, with the signal
The first conduct piece 23 through the substrate layer 10 is connected between cabling 22.The ground pad 32 is described to connect in annular shape
For ground pad 32 around 31 side of signal pad, the geometric center of the ground pad 32 is several with the signal pad 31
What center coincides, and is connected with the second conduct piece 24 between the ground connection cabling 21.The elasticity metal dome 33 is to lead
Electric body, the outer rim of the elasticity metal dome 33 contact at the ground pad 32, the geometric center phase of the elasticity metal dome 33
The signal pad 31 is set, so that the elasticity metal dome 100 is when being pressed, in the geometry of the elasticity metal dome 100
The heart contacts at the signal pad 31, the signal pad 31 and 32 short circuit of ground pad, triggers the signal lead 22
Send signal.
By the ground pad 32 around 31 side of signal pad, and the signal pad 31 connected described
Signal lead 22, the ground pad 32 connects the ground connection cabling 21, so that 32 easy electrostatic of the ground pad draws
Enter onto ground connection cabling 21, so as to eliminate electrostatic, so as to prevent interference of the electrostatic to signal lead 22, so as to improve the flexibility
The performance of wiring board 100.
In present embodiment, the substrate layer 10 is flexible layer, so as to which the flexible circuit board 100 can be flexible circuitry
Plate.Polyimides or the double stupid diformate (Polyethylene of polyethylene can be used in the substrate layer 10
Terephthalate PET) etc. materials, in order to set the ground connection cabling 21 and signal lead on the substrate layer 10
22, and insulation environment is capable of providing, in order to the ground connection cabling 21 and the etching of signal lead 22.Preferably, the base
The thickness of material layer 10 can be 20 μm.
The ground connection cabling 21 and the signal lead 22 are made of copper foil.Specifically, the ground connection cabling 21 and institute
It states signal lead 22 and can be plated on the substrate layer 10 and set copper foil, then etched technique etches the ground connection on copper foil layer
Cabling 21 and the signal lead 22.The signal lead 22 is located at the substrate layer 10 and deviates from 32 one side of ground pad,
So as to which the signal lead 22 avoids the ground pad 32, so as to avoid the ground pad 32 to the signal lead 22
Interference, the ground connection cabling 21 can be positioned at the same side of the substrate layer 10 with the signal lead 22 or divide
Not Wei Yu the substrate layer 10 both sides.The ground connection cabling 21 mutually completely cuts off with signal lead 22, so as to the ground connection cabling
The signal transmission of 21 pairs of signal leads 22 is not disturbed.
The signal pad 31 and the ground pad 32 can also be copper foils.The signal pad 31 and the ground connection weldering
Disk 32 is etched using etching technics on the substrate layer 10.The signal pad 31 is located at 32 inside of ground pad.Institute
It states signal pad 31 and opens up the first via 31a through the substrate layer 10, first conduct piece towards the signal lead 22
23 are arranged in the first via 31a, so as to which first conduct piece 23 realizes that the signal pad 31 and the signal are walked
Line 22 is electrically connected.Second conduct piece 24 can be and the 23 identical structure of the first conduct piece or be connected to institute
State the conductor cable between ground pad 32 and the ground connection cabling 21.In its natural state, the signal pad 31 with it is described
32 phase of ground pad disconnects, so as to which the ground connection cabling 21 is mutually disconnected with the signal lead 22, so as to the flexible circuit board
There is no trigger signal instruction on 100.In the case where the metal dome 33 receives the pressing force effect of button, the elasticity metal dome 33 is produced
Raw deformation so that the outer rim of the elasticity metal dome 33 is contacted on the ground pad 32, the elasticity metal dome 33 it is several
What center contacts at the signal pad 32, so that 32 short circuit of the signal pad 31 and the ground pad, so as to real
Existing 21 trigger signal of signal lead.
Further, first embodiment is provided, the ground connection cabling 21 and the signal lead 22 are located at the substrate layer
10 the same sides, second conduct piece 24 are the electric conductor through the substrate layer 10.Specifically, the flexible circuit board 100
Including the first copper foil layer 20a and the second copper foil layer 20b, the first copper foil layer 20a, which is laminated in the substrate layer 10, to be deviated from
31 one side of the ground pad 32 and the signal pad, the second copper foil layer 20b are arranged at the substrate layer 10 away from institute
The first copper foil layer 20a one sides are stated, the signal pad 31 and the ground pad 32 are arranged in the second copper foil layer 20b.
The ground connection cabling 21 and the signal lead 22 may be contained in the first copper foil layer 20a.The ground connection cabling 21 can be with
It is the ground connection copper foil positioned at 22 one side of signal lead, the ground connection cabling 21 can in the form of sheets, so that the ground connection
Cabling 21 can be grounded.Second conduct piece 24 setting identical with 23 structure of the first conduct piece, described second leads
Electric part 24 passes through the substrate layer 10.More specifically, the ground pad 32 is opened up towards the ground connection cabling 21 through described
The second via 32a of substrate layer 10a, second conduct piece 24 are arranged in the second via 32a, so as to which described second leads
Electric part 24 realizes that the ground pad 32 is grounded being electrically connected for cabling 22 with described, so that the ground pad 32 can incite somebody to action
Electrostatic is introduced on the ground connection cabling 22, so as to eliminate electrostatic interference.
Further, the flexible circuit board 100 further includes the first cover film 41 and the second cover film 42 being oppositely arranged,
First cover film 41 is laminated in the substrate layer 10 away from 30 one side of trigger assembly.First cover film 41 covers
The signal lead 21 and the ground connection cabling 22, first cover film 41 is to the signal lead 21 and the ground connection cabling
22 are protected, and prevent from connecting electric conductor between the signal lead 21 and prime number ground connection cabling 22, so as to influence the flexibility
The use of wiring board 100.Second overlay film 42 is laminated in the substrate layer 10 away from 41 one side of the first cover film, described
Second cover film 42 protects the substrate layer 10, and the ground pad 31 and the signal pad 32 pass through described second
Cover film 42, to facilitate the ground pad 31 and the signal pad 32 that can contact the elastic metal dome 33.At other
One layer of protection signal lead 21 and shown ground connection cabling 22 are only set in embodiment or in the substrate layer 10
Cover film.
Further, second cover film 42 is setting empty window 43, the sky window around the ground pad 31
43 are oppositely arranged with the ground connection cabling, and the earth conductor 44 for connecting the ground connection cabling is equipped in the sky window 43.Specifically,
The 3rd conduct piece 25 being connected between the earth conductor 44 and the ground connection cabling 22 through the substrate layer 10.From
And allow the ground pad 31 surrounding air in electrostatic through the earth conductor 44 introduce it is described ground connection cabling 22,
So as to eliminate the electrostatic around the trigger assembly 30, so as to further improve the performance of the flexible circuit board 100.
Further, the number of the trigger assembly 30 can also be set in that is, described flexible circuit board 100
Multiple ground pads 31 and multiple signal pads 32 are put, so that the flexible circuit board 100 can also be real
The triggering of existing multi-signal instruction, so as to improve the function of the flexible circuit board 100 so that the flexible circuit board 100 can
To be applied to terminal, realize that the multiple instructions signal of keyboard transfers.
Referring to Fig. 3, second embodiment is provided, it is roughly the same with first embodiment, unlike, the ground connection cabling
221 and the signal lead 222 be located at the both sides that are oppositely arranged of the substrate layer 10 respectively, second conduct piece 224 is leads
Electric wire cable.Specifically, the ground connection cabling 221 is arranged at the second copper foil layer 220b, second conduct piece 224 is also provided with
In in the second copper foil layer 220b, second conduct piece 224 and the ground connection cabling 221 can be in second copper foil
Integrally etching shaping in layer 220b.Second cover film 242 to it is described ground connection cabling 221 and second conduct piece 224 into
Row covering, so as to protect the ground connection cabling 221 and second conduct piece 224.The empty window 243 of second cover film 242
Part covers the ground connection cabling 221, so as to which the earth conductor 244 is directly connected in the ground connection cabling 221, so as to fulfill
Electrostatic protection is carried out to 30 surrounding of trigger assembly, is improved so as to fulfill the performance of the flexible circuit board 100.
By the ground pad around the signal pad side, and the signal pad is connected into the signal and is walked
Line, the ground pad connect the ground connection cabling, so that the easy electrostatic of the ground pad is introduced on ground connection cabling,
So as to eliminate electrostatic, so as to prevent interference of the electrostatic to signal lead, so as to improve the performance of the flexible circuit board.
Embodiments described above does not form the restriction to the technical solution protection domain.It is any in above-mentioned implementation
Modifications, equivalent substitutions and improvements made within the spirit and principle of mode etc., should be included in the protection model of the technical solution
Within enclosing.
Claims (9)
1. a kind of flexible circuit board, it is characterised in that：The flexible circuit board include substrate layer, ground connection cabling, signal lead and
Trigger assembly, the ground connection cabling and the signal lead are laminated on the substrate layer and are arranged at intervals, the trigger assembly
Signal pad, ground pad and elastic metal dome, the signal pad to coincide including geometric centre axes is fixed on described
The relatively described signal lead one side of substrate layer, is connected between the signal pad and the signal lead through the substrate layer
The first conduct piece, the ground pad around the signal pad side, and it is described ground connection cabling between be connected with
Through the second conduct piece of the substrate layer, the elasticity metal dome is electric conductor, and the outer rim of the elasticity metal dome contacts at
The ground pad, so that the elasticity metal dome, when being pressed, the geometric center of the elasticity metal dome contacts at the letter
Number pad, the signal pad and ground pad short circuit, trigger the signal lead and send signal, and pass through the ground connection
Pad is connected electrically in the outer rim of the elastic metal dome and being electrically connected for the ground connection cabling, and electrostatic is introduced to the ground connection walks
On line.
2. flexible circuit board as described in claim 1, it is characterised in that：The ground connection cabling and the signal lead are located at institute
State substrate layer the same side.
3. flexible circuit board as described in claim 1, it is characterised in that：The flexible circuit board includes the first cover film, institute
It states the first cover layer and is laminated on the substrate layer away from the trigger assembly one side, cover the signal lead.
4. flexible circuit board as described in claim 1, it is characterised in that:The flexible circuit board further includes the second cover film,
Second cover film is covered in the substrate layer away from the signal lead one side, the signal pad and the ground pad
Through second cover film.
5. flexible circuit board as claimed in claim 4, it is characterised in that：Second cover film is around ground pad week
The empty window of setting is enclosed, the sky window is oppositely arranged with the ground connection cabling, is equipped in the sky window and is connected connecing for the ground connection cabling
Earthed conductor.
6. flexible circuit board as described in claim 1, it is characterised in that：The ground connection cabling and the signal lead are copper
Paper tinsel.
7. flexible circuit board as described in claim 1, it is characterised in that：The number of the trigger assembly is multiple, Duo Gesuo
Trigger assembly array is stated on the substrate layer.
8. flexible circuit board as described in claim 1, it is characterised in that：The substrate layer is flexible layer.
9. a kind of mobile terminal, it is characterised in that：The mobile terminal include body, arranged on the body interior mainboard and
The flexible circuit board as described in claim 1~8 any one, the flexible circuit board be arranged on the body interior, and with it is described
Mainboard is electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511026316.9A CN105430882B (en) | 2015-12-29 | 2015-12-29 | Flexible circuit board and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511026316.9A CN105430882B (en) | 2015-12-29 | 2015-12-29 | Flexible circuit board and mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105430882A CN105430882A (en) | 2016-03-23 |
| CN105430882B true CN105430882B (en) | 2018-05-29 |
Family
ID=55508729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511026316.9A Expired - Fee Related CN105430882B (en) | 2015-12-29 | 2015-12-29 | Flexible circuit board and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105430882B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4132233A4 (en) | 2021-03-19 | 2023-12-27 | BOE Technology Group Co., Ltd. | Circuit board module |
| CN115312577A (en) * | 2022-09-16 | 2022-11-08 | 京东方科技集团股份有限公司 | Display mother board, detection method thereof, display substrate and display device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4456800A (en) * | 1983-05-25 | 1984-06-26 | Allen-Bradley Company | Planar contact array switch having improved ground path for dissipating electrostatic discharges |
| CN103249244A (en) * | 2012-02-09 | 2013-08-14 | 斗星电子有限公司 | Flexible printed circuit board |
| CN103607840A (en) * | 2013-11-26 | 2014-02-26 | 福建联迪商用设备有限公司 | Metal dome golden finger, key structure and metal dome assembling technology |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06203698A (en) * | 1992-12-28 | 1994-07-22 | Kofu Kashio Kk | Switch for circuit board |
| KR20050081025A (en) * | 2004-02-12 | 2005-08-18 | 주식회사 팬택앤큐리텔 | Structure for discharging static electricity of dome switch pad |
-
2015
- 2015-12-29 CN CN201511026316.9A patent/CN105430882B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4456800A (en) * | 1983-05-25 | 1984-06-26 | Allen-Bradley Company | Planar contact array switch having improved ground path for dissipating electrostatic discharges |
| CN103249244A (en) * | 2012-02-09 | 2013-08-14 | 斗星电子有限公司 | Flexible printed circuit board |
| CN103607840A (en) * | 2013-11-26 | 2014-02-26 | 福建联迪商用设备有限公司 | Metal dome golden finger, key structure and metal dome assembling technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105430882A (en) | 2016-03-23 |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180529 |