CN103138128A - Radio frequency connecting device - Google Patents
Radio frequency connecting device Download PDFInfo
- Publication number
- CN103138128A CN103138128A CN2011103992880A CN201110399288A CN103138128A CN 103138128 A CN103138128 A CN 103138128A CN 2011103992880 A CN2011103992880 A CN 2011103992880A CN 201110399288 A CN201110399288 A CN 201110399288A CN 103138128 A CN103138128 A CN 103138128A
- Authority
- CN
- China
- Prior art keywords
- hole
- radio frequency
- circuit board
- lower fixed
- fixed block
- 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.)
- Granted
Links
Images
Abstract
The invention discloses a radio frequency connecting device which is used for fixing a radio frequency coaxial connector to a circuit board, and comprises an upper fixing block, a lower fixing block and a circuit board, wherein a big semicircular hole is formed in the middle of the upper fixing block, a small semicircular hole is formed in the middle of the lower fixing block, and an embedded groove and a ground pressure plate hole are formed on one side of the circuit board. The upper fixing block, the lower fixing block and the radio frequency coaxial connector are mutually fixed. A tail end shell of the radio frequency coaxial connector is tightly connected with the upper fixing block and the lower fixing block. The axial line of the radio frequency coaxial connector is connected to a radio frequency signal output wire of the circuit board. The upper fixing block and the lower fixing block are mutually connected through the ground pressure plate hole. The radio frequency connecting device can firmly fix the radio frequency coaxial connector on the circuit board, and achieve reliable connection of circuits on the radio frequency coaxial connector and the circuit board.
Description
Technical field
The present invention relates to the interface unit technical field, particularly a kind of radio frequency connection device.
Background technology
Radio frequency (RF) coaxial connector is considered to be installed on cable or be arranged on instrument usually, as the element of transmission line electrical connection or separation.According to the difference of radio-frequency power, transmission frequency, radio frequency (RF) coaxial connector has multiple different specification, such as the medium-sized series such as M, N, C, BNC, TNC and the mini-series such as SMA, SMB, SMC.
At field of semiconductor manufacture, the communications field radio-frequency power that arrives hundreds of watts to thousands of watts commonly used, transmit other radiofrequency signal of this power stage and usually select the radio frequency (RF) coaxial connector of M, N-type, the various standard specifications of these two kinds of radio frequency (RF) coaxial connectors can be fixed on cabinet, and can't be securely fixed on circuit board and reliably be connected with circuit on circuit board.
For example, between rf power amplifier circuit and power-sensing circuit, the general copper sheet that adopts is connected, be that the radiofrequency signal output lead is connected via copper sheet with the output of power-sensing circuit, the ground wire of rf power amplifier circuit also is connected via copper sheet with the ground wire of power-sensing circuit, do like this shielding that is unfavorable for radiofrequency signal, other parts in cabinet are impacted.another kind of way is directly to be soldered to radio frequency (RF) coaxial connector on circuit board, the axis of radio frequency (RF) coaxial connector (being radio frequency signal transmission line) is connected with radiofrequency signal output lead on circuit board, the shell of radio frequency (RF) coaxial connector is connected with the ground wire of circuit board, then be connected to power-sensing circuit by the radio-frequency (RF) coaxial transmission cable, because the shielding of radio-frequency (RF) coaxial transmission cable is good, do not disturb other parts in cabinet so can guarantee radiofrequency signal output, but radio frequency (RF) coaxial connector and circuit board are the welding of several points, the poor reliability that connects, especially need to constantly screw when assembling and setting and pull radio frequency (RF) coaxial connector, repeatedly be easy to several times make the solder joint between connector and circuit board loosening, even split, thereby cause radio frequency output fault, damage power device.
Summary of the invention
Technical problem to be solved by this invention be to provide a kind of radio frequency (RF) coaxial connector can be securely fixed on circuit board and realize with circuit board on the reliable radio frequency connection device that is connected of circuit.
For solving the problems of the technologies described above, the invention provides a kind of radio frequency connection device, be used for radio frequency (RF) coaxial connector is fixed to circuit board, comprise
Upper fixed block has more than half circular hole therebetween;
Lower fixed block has the smaller part circular hole therebetween;
And circuit board, on one side have embedded groove and ground connection platen hole at it;
Fixed piece, described lower fixed block and described radio frequency (RF) coaxial connector interfix, the afterbody shell of described radio frequency (RF) coaxial connector and fixed piece, described lower fixed block fluid-tight engagement, the axis of described radio frequency (RF) coaxial connector is engaged in the radiofrequency signal output lead of described circuit board, and fixed piece and described lower fixed block interconnect via described ground connection platen hole.
Further, the fixed piece is provided with stationary plane on connector, have fixing hole at stationary plane on described connector, described lower fixed block is provided with stationary plane under connector, stationary plane has lower fixed hole under described connector, and fixed piece and described lower fixed block interfix via fixed hole, described lower fixed hole and described radio frequency (RF) coaxial connector respectively.
Further, fixed hole and described lower fixed hole are all screw, and fixed piece and described lower fixed block utilize screw to interfix via fixed hole, described lower fixed hole and described radio frequency (RF) coaxial connector respectively.
Further, fixed hole and described lower fixed hole are all through hole, and fixed piece and described lower fixed block utilize bolt and nut to interfix via fixed hole, described lower fixed hole and described radio frequency (RF) coaxial connector respectively.
Further, the juncture of the radiofrequency signal output lead of the axis of described radio frequency (RF) coaxial connector and described circuit board is for utilizing high temperature scolding tin directly to weld, and pad is hemisphere, covers an end of axis fully.
Further, the fixed piece is provided with electrolysis on circuit board, electrolysis has crimping hole on circuit board on described circuit board, described lower fixed block is provided with electrolysis under circuit board, have crimping hole under circuit board at electrolysis under described circuit board, fixed piece and described lower fixed block interconnect via crimping hole under crimping hole on described circuit board, described ground connection platen hole, described circuit board.
Further, on described circuit board, the crimping hole is screw, under described circuit board, the crimping hole is through hole, utilizes screw, via crimping hole on crimping hole under described circuit board, described ground connection platen hole, described circuit board, the fixed piece is connected with described lower fixed block successively.
Further, on described circuit board, the crimping hole is through hole, under described circuit board, the crimping hole is screw, utilizes screw, via crimping hole under crimping hole on described circuit board, described ground connection platen hole, described circuit board, the fixed piece is connected with described lower fixed block successively.
Further, fixed piece and described lower fixed block are all made by conductive metallic material, and be preferably made of aluminum.
Compared with prior art, the present invention has following advantage:
The embedded groove of A, the upper fixed block due to radio frequency connection device of the present invention, lower fixed block and circuit board can be fixed to circuit board with radio frequency (RF) coaxial connector on vertical, horizontal and direction of rotation, so radio frequency (RF) coaxial connector can be securely fixed on circuit board;
B, because being connected to, the radiofrequency signal output lead of the axis of the radio frequency (RF) coaxial connector in radio frequency connection device of the present invention and circuit board utilize high temperature scolding tin directly to weld, solder joint is hemisphere, cover an end of axis fully, realize that the radiofrequency signal between circuit board and radio frequency (RF) coaxial connector reliably connects, and upper fixed block, the afterbody shell fluid-tight engagement of lower fixed block and radio frequency (RF) coaxial connector, upper fixed block, lower fixed block is connected with the ground wire of circuit board by ground connection platen hole, and the ground connection of realizing circuit board and radio frequency (RF) coaxial connector is abundant, thereby the reliable electric that has realized circuit on radio frequency (RF) coaxial connector and circuit board is connected.
Description of drawings
The structural representation of the radio frequency connection device that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is the structural representation of upper mounted plate in radio frequency connection device shown in Figure 1;
Fig. 3 is the structural representation of bottom plate in radio frequency connection device shown in Figure 1;
Fig. 4 is the structural representation of circuit board in radio frequency connection device shown in Figure 1.
Embodiment
Referring to Fig. 1, a kind of radio frequency connection device that the embodiment of the present invention provides comprises with the upper fixed block 1 of semicircle orifice and lower fixed block 6, circuit board 5.Upper fixed block 1 and lower fixed block 6 are made by conducting metal, and preferred aluminium helps abundant ground connection.Upper fixed block 1 and lower fixed block 6 can be combined closely with flanged M, N-type radio frequency (RF) coaxial connector 7 after circuit board 5 both sides pressings, and this moment, the axis of radio frequency (RF) coaxial connector 7 engaged with the radiofrequency signal output lead 8 of circuit board 5 just.The axis of radio frequency (RF) coaxial connector 7 is through welding and radiofrequency signal output lead 8 welding of being fixed on circuit board 5, thus formation axis pad 3; Preferably, utilize high temperature scolding tin that axis is directly welded, pad is hemisphere, covers an end of axis fully, guarantees that the radiofrequency signal between circuit board and radio frequency (RF) coaxial connector reliably connects.The shell of radio frequency (RF) coaxial connector 7 is as ground wire, afterbody shell fluid-tight engagement by upper fixed block 1, lower fixed block 6 and radio frequency (RF) coaxial connector 7, and earth lead 4 crimping on upper fixed block 1, lower fixed block 6 and circuit board 5, form ground wire electrolysis 2, guarantee that the ground connection of circuit board and radio frequency (RF) coaxial connector is abundant.
Referring to Fig. 2, in the middle of being substantially, the shape of upper fixed block 1 has the rectangular block in hole, middle perforate is more than half circular hole 15, and the profile of more than half circular hole 15 can close with the afterbody match profiles of radio frequency (RF) coaxial connector 7, so that the afterbody of more than half circular hole 15 and radio frequency (RF) coaxial connector 7 fits tightly.The width of upper fixed block 1 equates with the width of radio frequency (RF) coaxial connector.Upper fixed block 1 is provided with on connector electrolysis 16 on stationary plane 11 and circuit board.On connector, stationary plane 11 is provided with two upper fixing holes 12, and its position is corresponding with fixing hole on radio frequency (RF) coaxial connector 7.Upper fixing hole can be screw or through hole, if screw, available screw is fixing with upper fixed block 1 with radio frequency (RF) coaxial connector 7; If through hole, available bolt and nut is fixing with upper fixed block 1 with radio frequency (RF) coaxial connector 7.On circuit board, electrolysis 16 is provided with crimping hole 13 on circuit board, and on circuit board, crimping hole 13 is through hole or screw.
Referring to Fig. 3, the shape with upper fixed block 1 substantially of lower fixed block 6 is identical, also be the middle rectangular block that has the hole, but the height of lower fixed block 6 is less than the height of upper fixed block 1.Middle perforate is smaller part circular hole 28, and the profile of smaller part circular hole 28 can close with the afterbody match profiles of radio frequency (RF) coaxial connector 7, so that the afterbody of smaller part circular hole 28 and radio frequency (RF) coaxial connector 7 fits tightly.The width of lower fixed block 6 equates with the width of radio frequency (RF) coaxial connector.After upper fixed block 1, lower fixed block 6, circuit board 5 is fixing with radio frequency (RF) coaxial connector 7, the axis of radio frequency (RF) coaxial connector 7 circuit board 5 of can fitting.Lower fixed block 6 is provided with under connector electrolysis 26 under stationary plane 21 and circuit board.Under connector, stationary plane 21 is provided with two lower fixed holes 22, and its position is corresponding with fixing hole on radio frequency (RF) coaxial connector 7.Lower fixed hole 22 can be screw or through hole, if screw, available screw is fixing with lower fixed block 6 with radio frequency (RF) coaxial connector 7; If through hole, available bolt and nut is fixing with lower fixed block 6 with radio frequency (RF) coaxial connector 7.Under circuit board, electrolysis 26 is provided with crimping hole 27 under circuit board, and under circuit board, crimping hole 27 can be through hole or screw.
But if on circuit board, crimping hole 13 is through hole, under circuit board, crimping hole 27 can only be screw; If on circuit board, crimping hole 13 is screw, under circuit board, crimping hole 27 can be through hole or screw, be on circuit board under crimping hole and circuit board the crimping hole have at least a pore area that screw thread is arranged, and having a hole at least is penetrating hole, conveniently to utilize screw, that crimping hole 27 under crimping hole 13 and circuit board on circuit board is fastening with upper fixed block 1, circuit board 5, lower fixed block 6.
Referring to Fig. 4, for the circuit board 5 that coordinates with said apparatus, should inwardly offer radio frequency (RF) coaxial connector embedded groove 54 at board edge 55, its geomery should match with radio frequency (RF) coaxial connector 7 used.In the corresponding position of radio frequency (RF) coaxial connector axis 7, axis 53 (being generally the output lead of radiofrequency signal) is set, be used for the axis of welding radio frequency (RF) coaxial connector 7 and be connected with circuit on plate; Position corresponding to crimping hole at upper fixed block 1 and lower fixed block 6 arranges ground connection platen 51, and the center of ground connection platen 51 arranges ground connection platen hole 52, is used for passing screw.
radio frequency connection device provided by the invention can be with radio frequency (RF) coaxial connector, the flange form radio frequency (RF) coaxial connector of M or N-type particularly, be fixed on circuit board 5, radio frequency connection device is by upper fixing hole, lower fixed hole and radio frequency (RF) coaxial connector with the axis parallel direction on be connected, by crimping hole on circuit board, under circuit board the crimping hole respectively with circuit board, radio frequency (RF) coaxial connector is being connected in vertical direction with axis, by more than half circular hole, the smaller part circular hole, the afterbody profile fluid-tight engagement of embedded groove and radio frequency (RF) coaxial connector 7, realization with radio frequency (RF) coaxial connector vertically, laterally and on direction of rotation be fixed to circuit board, the firm difficult drop-off of fixed form.Because the axis of radio frequency (RF) coaxial connector is the transmission line of radiofrequency signal, shell is the ground wire of radiofrequency signal, by radio frequency connection device of the present invention, can with the axis of radio frequency (RF) coaxial connector and shell respectively with circuit board on radiofrequency signal output lead and earth lead firm engagement, realize the reliable connection on electric, and simple in structure.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to example, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (10)
1. a radio frequency connection device, be used for radio frequency (RF) coaxial connector is fixed to circuit board, it is characterized in that, comprises
Upper fixed block has more than half circular hole therebetween;
Lower fixed block has the smaller part circular hole therebetween;
And circuit board, on one side have embedded groove and ground connection platen hole at it;
Fixed piece, described lower fixed block and described radio frequency (RF) coaxial connector interfix, the afterbody shell of described radio frequency (RF) coaxial connector and fixed piece, described lower fixed block fluid-tight engagement, the axis of described radio frequency (RF) coaxial connector is engaged in the radiofrequency signal output lead of described circuit board, and fixed piece and described lower fixed block interconnect via described ground connection platen hole.
2. radio frequency connection device according to claim 1 is characterized in that:
The fixed piece is provided with stationary plane on connector, have fixing hole at stationary plane on described connector, described lower fixed block is provided with stationary plane under connector, stationary plane has lower fixed hole under described connector, and fixed piece and described lower fixed block interfix via fixed hole, described lower fixed hole and described radio frequency (RF) coaxial connector respectively.
3. radio frequency connection device according to claim 2 is characterized in that:
Fixed hole and described lower fixed hole are all screw, and fixed piece and described lower fixed block utilize screw to interfix via fixed hole, described lower fixed hole and described radio frequency (RF) coaxial connector respectively.
4. radio frequency connection device according to claim 2 is characterized in that:
Fixed hole and described lower fixed hole are all through hole, and fixed piece and described lower fixed block utilize bolt and nut to interfix via fixed hole, described lower fixed hole and described radio frequency (RF) coaxial connector respectively.
5. radio frequency connection device according to claim 2 is characterized in that:
The juncture of the radiofrequency signal output lead of the axis of described radio frequency (RF) coaxial connector and described circuit board is for utilizing high temperature scolding tin directly to weld, and pad is hemisphere, covers an end of axis fully.
6. radio frequency connection device according to claim 5 is characterized in that:
The fixed piece is provided with electrolysis on circuit board, electrolysis has crimping hole on circuit board on described circuit board, described lower fixed block is provided with electrolysis under circuit board, have crimping hole under circuit board at electrolysis under described circuit board, fixed piece and described lower fixed block interconnect via crimping hole under crimping hole on described circuit board, described ground connection platen hole, described circuit board.
7. radio frequency connection device according to claim 6 is characterized in that:
On described circuit board, the crimping hole is screw, and under described circuit board, the crimping hole is through hole, utilizes screw, via crimping hole on crimping hole under described circuit board, described ground connection platen hole, described circuit board, the fixed piece is connected with described lower fixed block successively.
8. radio frequency connection device according to claim 6 is characterized in that:
On described circuit board, the crimping hole is through hole, and under described circuit board, the crimping hole is screw, utilizes screw, via crimping hole under crimping hole on described circuit board, described ground connection platen hole, described circuit board, the fixed piece is connected with described lower fixed block successively.
9. the described radio frequency connection device of any one claim according to claim 1 to 8 is characterized in that:
Fixed piece and described lower fixed block are all made by conductive metallic material.
10. radio frequency connection device according to claim 9 is characterized in that:
Fixed piece and described lower fixed block are all made of aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110399288.0A CN103138128B (en) | 2011-12-05 | 2011-12-05 | Radio frequency connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110399288.0A CN103138128B (en) | 2011-12-05 | 2011-12-05 | Radio frequency connection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103138128A true CN103138128A (en) | 2013-06-05 |
| CN103138128B CN103138128B (en) | 2015-09-09 |
Family
ID=48497611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110399288.0A Active CN103138128B (en) | 2011-12-05 | 2011-12-05 | Radio frequency connection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103138128B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104285339A (en) * | 2013-10-30 | 2015-01-14 | 华为技术有限公司 | Signal connection device |
| TWI499781B (en) * | 2013-12-23 | 2015-09-11 | Univ Nat Taiwan Science Tech | A probe module |
| CN106129622A (en) * | 2016-08-17 | 2016-11-16 | 苏州市吴通天线有限公司 | A kind of coaxial cable ground connection and fixing flange |
| WO2017076267A1 (en) * | 2015-11-04 | 2017-05-11 | 华为技术有限公司 | Base station antenna |
| CN113740568A (en) * | 2021-08-25 | 2021-12-03 | 深圳市速联技术有限公司 | Radio frequency PCB end connector parameter test fixture |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5130896A (en) * | 1991-02-22 | 1992-07-14 | Hewlett-Packard Company | Apparatus for electromagnetic interference containment for printed circuit board connectors |
| US6231380B1 (en) * | 1999-03-31 | 2001-05-15 | Adc Telecommunications, Inc. | Bulkhead connector system including angled adapter |
| CN101964466A (en) * | 2009-07-21 | 2011-02-02 | 泰科电子公司 | Electric coupler component with shielding part |
-
2011
- 2011-12-05 CN CN201110399288.0A patent/CN103138128B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5130896A (en) * | 1991-02-22 | 1992-07-14 | Hewlett-Packard Company | Apparatus for electromagnetic interference containment for printed circuit board connectors |
| US6231380B1 (en) * | 1999-03-31 | 2001-05-15 | Adc Telecommunications, Inc. | Bulkhead connector system including angled adapter |
| CN101964466A (en) * | 2009-07-21 | 2011-02-02 | 泰科电子公司 | Electric coupler component with shielding part |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104285339A (en) * | 2013-10-30 | 2015-01-14 | 华为技术有限公司 | Signal connection device |
| WO2015061986A1 (en) * | 2013-10-30 | 2015-05-07 | 华为技术有限公司 | Signal connection apparatus |
| CN104285339B (en) * | 2013-10-30 | 2016-03-30 | 华为技术有限公司 | A kind of signal connection device |
| TWI499781B (en) * | 2013-12-23 | 2015-09-11 | Univ Nat Taiwan Science Tech | A probe module |
| WO2017076267A1 (en) * | 2015-11-04 | 2017-05-11 | 华为技术有限公司 | Base station antenna |
| CN106129622A (en) * | 2016-08-17 | 2016-11-16 | 苏州市吴通天线有限公司 | A kind of coaxial cable ground connection and fixing flange |
| CN113740568A (en) * | 2021-08-25 | 2021-12-03 | 深圳市速联技术有限公司 | Radio frequency PCB end connector parameter test fixture |
| CN113740568B (en) * | 2021-08-25 | 2024-04-12 | 深圳市速联技术有限公司 | Radio frequency PCB end connector parameter test fixture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103138128B (en) | 2015-09-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103138128B (en) | Radio frequency connection device | |
| CN102025050A (en) | Multi-pathway connector for circuit boards | |
| CN103840285A (en) | Method for improving high frequency characteristic impedance stability and high frequency connector thereof | |
| CN205429219U (en) | Hair button inter -plate radio frequency connector | |
| CN103746193B (en) | Smart antenna and calibrating installation thereof | |
| CN104752929A (en) | Millimeter Wave Connector and Band Conductor | |
| CN109088197A (en) | Electric coupler component and electric connector system | |
| CN203722572U (en) | Photovoltaic junction box | |
| CN202616554U (en) | Radiofrequency coaxial connector | |
| CN104934739A (en) | Printed circuit board test connector | |
| CN104393392B (en) | Preparation method of microwave and millimeter-wave strip transmission line | |
| US6818837B2 (en) | Wiring connection structure and transmitter using the same | |
| CN203120375U (en) | Shield cover for preventing electromagnetic leakage | |
| EP3361568A1 (en) | Base station antenna | |
| CN201204341Y (en) | Coaxial connector and communication apparatus | |
| CN210182725U (en) | Cable connection composite structure of short tail type coaxial radio frequency connector | |
| CN210469881U (en) | PCB board mosaic structure and antenna device | |
| EP3249741A1 (en) | Device for the connection between a strip line and a coaxial cable | |
| CN204760692U (en) | Highly reliable printing board welding radio frequency coaxial connector | |
| CN205944455U (en) | A connecting piece for inciting somebody to action radio frequency cable is connected to radio frequency device spare metal sheet | |
| CN104953307A (en) | Fuzzy button | |
| CN203521812U (en) | Connector mounting structure of reinforced computer | |
| CN202190459U (en) | Paster element pad layout structure | |
| CN204349223U (en) | Three-phase outlet integrated base | |
| CN103414013A (en) | Antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201217 Address after: 510000 601, building a, 136 Kaiyuan Avenue, Huangpu District, Guangzhou City, Guangdong Province Patentee after: AoXin integrated circuit technology (Guangdong) Co.,Ltd. Address before: 100029 Beijing city Chaoyang District Beitucheng West Road No. 3 Patentee before: Institute of Microelectronics, Chinese Academy of Sciences |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220428 Address after: 510000 room 710, Jianshe building, No. 348, Kaifa Avenue, Huangpu District, Guangzhou, Guangdong Patentee after: Ruili flat core Microelectronics (Guangzhou) Co.,Ltd. Address before: 510000 601, building a, 136 Kaiyuan Avenue, Huangpu District, Guangzhou City, Guangdong Province Patentee before: AoXin integrated circuit technology (Guangdong) Co.,Ltd. |