CN201797653U - Printed wiring board of buried resistor - Google Patents
Printed wiring board of buried resistor Download PDFInfo
- Publication number
- CN201797653U CN201797653U CN2010205345320U CN201020534532U CN201797653U CN 201797653 U CN201797653 U CN 201797653U CN 2010205345320 U CN2010205345320 U CN 2010205345320U CN 201020534532 U CN201020534532 U CN 201020534532U CN 201797653 U CN201797653 U CN 201797653U
- Authority
- CN
- China
- Prior art keywords
- wiring board
- resistor
- layers
- insulating substrate
- metal wire
- 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
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- Parts Printed On Printed Circuit Boards (AREA)
Abstract
The utility model discloses a printed wiring board of a buried resistor, and comprises an insulating substrate, metal wire layers formed on the surfaces of the insulating substrate, and a conducting hole correspondingly conducting the metal wire layers and having a metal layer covered on the hole wall; insulating ink layers cover the parts of the surfaces of the insulating substrate, which are not covered by the metal wire layers; at least one pair of electrodes are formed in the metal wire layers; a resistor layer covers the insulating substrate between each pair of electrodes; and the resistor layers extend to cover the ends of the electrodes, which are close to both ends of the resistor layers. In the utility model, resistors on the surface of the wiring board are replaced by the sprayed resistor layers, so that the application range is wide; and compared with surface mounted resistors, the utility model has the advantages that the path from signals to components is shortened in the buried resistor, parasitic inductance and crosstalk of signals are reduced, the size of the wiring board is decreased, the product is lightened, and the number of welding points on the wiring board is reduced, so that the product has the characteristics of precision, minuteness, lightness, thinness, and reliability of signals, and conforms to the demands and trends of electronic products.
Description
Technical field
The utility model relates to the printed wiring board field, especially a kind of printed wiring board of embedded resistors.
Background technology
Electronic product trends towards microminiaturization, multifunctional direction development, and the electronic product in resistance field not only will satisfy this requirement, and the more important thing is the composite signal laser propagation effect that will satisfy components and parts, good function.
The resistance board product mostly is the separate type elements combination, has more components and parts to mount in the product, and lead involves, and volume is big, and the composite signal conversion effect of components and parts is poor.
Summary of the invention
In order to overcome above-mentioned defective, the utility model provides a kind of printed wiring board of embedded resistors, can realize embedded resistors, and volume is little, integrated level is high.
The utility model for the technical scheme that solves its technical problem and adopt is:
A kind of printed wiring board of embedded resistors, the hole wall that comprise insulated substrate, is formed at the metallic circuit layer on insulated substrate surface and corresponding conducting metallic circuit layer covers the interlayer conduction hole of metal level, the position that the metallic circuit layer is exposed on the insulated substrate surface is coated with the dielectric ink layer, be formed with at least one pair of electrode in this metallic circuit layer, each is to being coated with resistive layer on the insulated substrate between the electrode, and each resistive layer extend cover its two ends electrode near on the end of this resistive layer.
As further improvement of the utility model, described resistive layer is the carbon oil rete, and its resistance is 1K～100K ohm.
The beneficial effects of the utility model are: the resistor that replaces PCB surface with the resistive layer of spraying, of many uses, for mounting resistor, embedded resistors the is brief path of signal to components and parts reduced stray inductance and reduced crosstalking of signal, and can reduce the size of wiring board again, alleviate product weight, simultaneously reduce solder joint on the wiring board again, made product have precision, small, frivolous, signal reliable characteristics, adapted to the demand trend of electronic product.
Description of drawings
Fig. 1 is an embedded resistors structural representation of the present utility model;
Fig. 2 is that the A-A of Fig. 1 is to cross-sectional view.
Embodiment
Embodiment: a kind of printed wiring board of embedded resistors, the hole wall that comprise insulated substrate 1, is formed at the metallic circuit layer on insulated substrate 1 surface and corresponding conducting metallic circuit layer covers the interlayer conduction hole 2 of metal level, the position that the metallic circuit layer is exposed on the insulated substrate surface is coated with the dielectric ink layer, be formed with at least one pair of electrode 3 in this metallic circuit layer, each is to being coated with resistive layer 4 on the insulated substrate between the electrode 3, and each resistive layer 4 extend cover its two ends electrode 3 near on the ends of this resistive layer.
Described resistive layer 4 is the carbon oil rete, and its resistance is 1K～100K ohm.
Claims (2)
1. the printed wiring board of an embedded resistors, the hole wall that comprise insulated substrate (1), is formed at the metallic circuit layer on insulated substrate (1) surface and corresponding conducting metallic circuit layer covers the interlayer conduction hole (2) of metal level, the position that the metallic circuit layer is exposed on the insulated substrate surface is coated with the dielectric ink layer, it is characterized in that: be formed with at least one pair of electrode (3) in this metallic circuit layer, each is to being coated with resistive layer (4) on the insulated substrate between the electrode (3), and each resistive layer (4) extend cover its two ends electrode (3) near on the end of this resistive layer.
2. the printed wiring board of embedded resistors according to claim 1, it is characterized in that: described resistive layer (4) is the carbon oil rete, and its resistance is 1K～100K ohm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205345320U CN201797653U (en) | 2010-09-17 | 2010-09-17 | Printed wiring board of buried resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205345320U CN201797653U (en) | 2010-09-17 | 2010-09-17 | Printed wiring board of buried resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201797653U true CN201797653U (en) | 2011-04-13 |
Family
ID=43852549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205345320U Expired - Fee Related CN201797653U (en) | 2010-09-17 | 2010-09-17 | Printed wiring board of buried resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201797653U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951726A (en) * | 2010-09-17 | 2011-01-19 | 昆山华扬电子有限公司 | Resistor built-in printing circuit board and manufacturing process thereof |
| CN103428995A (en) * | 2012-05-22 | 2013-12-04 | 上海百嘉电子有限公司 | Invisible fine electric conduction coil and method for manufacturing same |
| WO2023024212A1 (en) * | 2021-08-26 | 2023-03-02 | 深南电路股份有限公司 | Resistor-buried circuit board and processing method |
-
2010
- 2010-09-17 CN CN2010205345320U patent/CN201797653U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951726A (en) * | 2010-09-17 | 2011-01-19 | 昆山华扬电子有限公司 | Resistor built-in printing circuit board and manufacturing process thereof |
| CN103428995A (en) * | 2012-05-22 | 2013-12-04 | 上海百嘉电子有限公司 | Invisible fine electric conduction coil and method for manufacturing same |
| WO2023024212A1 (en) * | 2021-08-26 | 2023-03-02 | 深南电路股份有限公司 | Resistor-buried circuit board and processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU PUNUOWEI ELECTRONIC CO., LTD. Free format text: FORMER NAME: KUNSHAN HWAYUNG ELECTRONICS CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Qiandeng Town Hongyang road Kunshan City, Suzhou City, Jiangsu Province, No. 322 215341 Patentee after: JIANGSU PUNUOWEI ELECTRONIC CO., LTD. Address before: South Village 215341 Jiangsu province Kunshan City Qiandeng Private Development Zone Patentee before: Kunshan Hwayung Electronics Co., Ltd. |
|
| 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: 20110413 Termination date: 20160917 |