CN102316672A - Printed circuit board - Google Patents
Printed circuit board Download PDFInfo
- Publication number
- CN102316672A CN102316672A CN2010102176024A CN201010217602A CN102316672A CN 102316672 A CN102316672 A CN 102316672A CN 2010102176024 A CN2010102176024 A CN 2010102176024A CN 201010217602 A CN201010217602 A CN 201010217602A CN 102316672 A CN102316672 A CN 102316672A
- Authority
- CN
- China
- Prior art keywords
- circuit board
- printed circuit
- layer
- signal layer
- connector
- 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 19
- 230000008878 coupling Effects 0.000 claims abstract description 19
- 238000010168 coupling process Methods 0.000 claims abstract description 19
- 238000005859 coupling reaction Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000003466 welding Methods 0.000 abstract 4
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Images
Landscapes
- Combinations Of Printed Boards (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The invention relates to a printed circuit board, which comprises a first signal layer, a second signal layer and a medium layer positioned between the first signal layer and the second signal layer, wherein two connector welding discs are arranged on the first signal layer, two conduction parts with the same size and materials as the two connector welding discs are arranged at the positions of the second signal layer corresponding to the two connector welding discs, the two conduction parts are connected with a pair of differential signal wires, and the two connector welding discs and the two conduction parts form two alternating current coupling capacitors. The printed circuit board can realize the functions of alternating current coupling capacitors without using the entity alternating current coupling capacitors.
Description
Technical field
The present invention relates to a kind of printed circuit board (PCB).
Background technology
At present; The connector that needs to connect differential signal line can be set on some printed circuit board (PCB)s; Also need be connected ac coupling capacitor between this connector and this differential signal line; As shown in Figure 1, first signals layer 110 of printed circuit board (PCB) 100 is provided with two connector pads 12, a pair of differential signal line 14 that is used to connect a connector (not shown) and is located at this to being used to connect two pairs of electric capacity pads 16 of two ac coupling capacitors 15 on the differential signal line 14.When this connector is welded on this two connectors pad 12 and this two ac coupling capacitor 15 when being welded on these two pairs of electric capacity pads 16, this connector receives this to the signal on the differential signal line 14 through this ac coupling capacitor 15.But,,, also can take the wiring space of circuit board so can raise the cost owing to use the ac coupling capacitor 15 of entity.
Summary of the invention
In view of foregoing, be necessary to provide a kind of ac coupling capacitor that need not use entity can realize the printed circuit board (PCB) of ac coupling capacitor function.
A kind of printed circuit board (PCB); Comprise one first signals layer, the dielectric layer of a secondary signal layer and between this first signals layer and secondary signal layer; This first signals layer is provided with two connector pads; This secondary signal layer is provided with and this two connectors pad size, two conductive parts that material is all identical position that should two connector pads, and this two conductive part connects a pair of differential signal line, and this two connectors pad and this two conductive part form two ac coupling capacitors.
Compare prior art,, and need not use the ac coupling capacitor of entity because printed circuit board (PCB) of the present invention cooperates two conductive parts of its lower floor to form ac coupling capacitor this two connectors pad, thus can reduce cost, and saved the wiring space of circuit board.
Description of drawings
Combine preferred embodiments that the present invention is described in further detail with reference to the accompanying drawings:
Fig. 1 is the sketch map of existing a kind of printed circuit board (PCB).
Fig. 2 is the partial schematic diagram of printed circuit board (PCB) preferred embodiments of the present invention.
The main element symbol description
Printed circuit board (PCB) 200
Signals layer 210,230
Embodiment
Please refer to Fig. 2; The preferred embodiments of printed circuit board (PCB) 200 of the present invention comprises one first signals layer 210, the dielectric layer 220 of a secondary signal layer 230 and between this first signals layer 210 and secondary signal layer 230; This first signals layer 210 is provided with the two connector pads 212 that are used to connect a connector (not shown); 230 pairs on this secondary signal layer should two connector pads 212 the position be provided with and these two connectors pad, 212 sizes, two conductive parts 232 that material is all identical, this two conductive part 232 connects a pair of differential signal line 234.
When this connector is welded on 212 last times of this two connectors pad; Because this two connectors pad 212 is all identical with size, the material of this two conductive part 232; So be equivalent to two ac coupling capacitors, promptly this connector receives this to the signal on the differential signal line 234 through the ac coupling capacitor that is formed by this two connectors pad 212 and this two conductive part 232.Material between this two connectors pad 212 and this two conductive part 232 is the material with high-dielectric coefficient; Can correspondingly adjust the capacitance of the ac coupling capacitor that forms by this two connectors pad 212 and this two conductive part 232 through adjusting dielectric coefficient, to meet related request.Because printed circuit board (PCB) 200 of the present invention cooperates two conductive parts 232 of its lower floor to form ac coupling capacitor the connector pad 212 of connector, and need not use the ac coupling capacitor of entity, thus can reduce cost, and saved the wiring space of circuit board.
Claims (2)
1. printed circuit board (PCB); Comprise one first signals layer, the dielectric layer of a secondary signal layer and between this first signals layer and secondary signal layer; This first signals layer is provided with two connector pads; This secondary signal layer is provided with and this two connectors pad size, two conductive parts that material is all identical position that should two connector pads, and this two conductive part connects a pair of differential signal line, and this two connectors pad and this two conductive part form two ac coupling capacitors.
2. printed circuit board (PCB) as claimed in claim 1 is characterized in that: the material between this two connectors pad and this two conductive part is the material with high-dielectric coefficient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102176024A CN102316672A (en) | 2010-07-05 | 2010-07-05 | Printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102176024A CN102316672A (en) | 2010-07-05 | 2010-07-05 | Printed circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102316672A true CN102316672A (en) | 2012-01-11 |
Family
ID=45429368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102176024A Pending CN102316672A (en) | 2010-07-05 | 2010-07-05 | Printed circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102316672A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114050428A (en) * | 2021-10-27 | 2022-02-15 | 中科可控信息产业有限公司 | Signal acquisition device and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1486540A (en) * | 2000-11-15 | 2004-03-31 | ض� | Electromagnetic coupler flexible circuit |
| US20040136141A1 (en) * | 2002-12-19 | 2004-07-15 | Avx Corporation | Transmission line capacitor |
| CN101005732A (en) * | 2006-01-16 | 2007-07-25 | 三星电子株式会社 | Printed circuit board assembly |
| CN101378618A (en) * | 2007-08-31 | 2009-03-04 | 鸿富锦精密工业（深圳）有限公司 | Printed circuit board |
| CN101631425A (en) * | 2008-07-15 | 2010-01-20 | 鸿富锦精密工业（深圳）有限公司 | Circuit board and coexistence wiring method thereof |
-
2010
- 2010-07-05 CN CN2010102176024A patent/CN102316672A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1486540A (en) * | 2000-11-15 | 2004-03-31 | ض� | Electromagnetic coupler flexible circuit |
| US20040136141A1 (en) * | 2002-12-19 | 2004-07-15 | Avx Corporation | Transmission line capacitor |
| CN101005732A (en) * | 2006-01-16 | 2007-07-25 | 三星电子株式会社 | Printed circuit board assembly |
| CN101378618A (en) * | 2007-08-31 | 2009-03-04 | 鸿富锦精密工业（深圳）有限公司 | Printed circuit board |
| CN101631425A (en) * | 2008-07-15 | 2010-01-20 | 鸿富锦精密工业（深圳）有限公司 | Circuit board and coexistence wiring method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114050428A (en) * | 2021-10-27 | 2022-02-15 | 中科可控信息产业有限公司 | Signal acquisition device and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120111 |