CN102729583A - PCB multilayer board alignment structure - Google Patents
PCB multilayer board alignment structure Download PDFInfo
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- CN102729583A CN102729583A CN 201110091603 CN201110091603A CN102729583A CN 102729583 A CN102729583 A CN 102729583A CN 201110091603 CN201110091603 CN 201110091603 CN 201110091603 A CN201110091603 A CN 201110091603A CN 102729583 A CN102729583 A CN 102729583A
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- concentric circles
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Abstract
The invention discloses a PCB multilayer board alignment structure, which comprises several layers of PCB boards. Each layer of PCB board is respectively provided with several groups of alignment holes correspondingly. And each group of alignment holes at least includes a group of concentric circles. Each group of concentric circles includes two circles of different radiuses. The alignment structure is simple, can effectively judge the offset direction and offset value, and is convenient and easy to use.
Description
Technical field
The present invention relates to a kind of PCB multi-layer sheet aligning structure.
Background technology
When producing the PCB multi-layer sheet, at first to carry out contraposition, lamination then to every layer of pcb board; And present employed aligning structure is for being provided with the registration holes that radius is 125mil respectively at every laminate four jiaos, because this registration holes aperture is bigger, even under the inaccurate situation of contraposition; Also judged the contraposition preparation, usually cause erroneous judgement, and the direction and the side-play amount of skew can not be judged; This just causes the increase of fraction defective, reduces production efficiency, waste material.
Summary of the invention
In order to overcome above-mentioned defective, the invention provides a kind of PCB multi-layer sheet aligning structure, this aligning structure is simple, and can effectively judge offset direction and side-play amount, and easy to use, simple.
The present invention for the technical scheme that solves its technical problem and adopt is: a kind of PCB multi-layer sheet aligning structure; It comprises the several layers pcb board; Correspondence is provided with some groups of registration holes respectively on said every layer of pcb board; Said every group of registration holes comprises one group of concentric circles at least, and said every group of concentric circles comprises two circles that radius does not wait.Like this; During use, the roundlet in every group of concentric circles is holed earlier with X-ray, if X-ray bore the center of circle of roundlet do not overlap with the center of circle of its concentric great circle; Promptly have and depart from; X-ray can judge in view of the above that the hole is inclined to one side, and according to the position of roundlet and great circle, can judge portal inclined to one side direction and hole deviator.Between layer and layer, can judge its offset direction and side-play amount according to the position in the concentrically ringed center of circle of correspondence.
Preferably, said pcb board is a rectangle, and the direction setting on the limit of the said pcb board in edge respectively of said every group of registration holes.
Preferably, said every group of registration holes comprises three groups of concentric circles, and three groups of concentric circles of said every group of registration holes are arranged in order along the direction on the PCB limit at its place, and the little radius of a circle in said every group of concentric circles is identical, and the big radius of circle in said every group of concentric circles does not wait.
Preferably, the big radius of circle in said every group of concentric circles is arranged by radii size along the direction on said PCB limit successively.
Preferably, the big radius of circle in said every group of concentric circles is followed successively by 3mil, 5mil, 7mil.Like this, can select the registration holes of different radii to judge successively.
The invention has the beneficial effects as follows: through on every layer of pcb board respectively correspondence some groups of registration holes are set; And every group of registration holes comprised two concentric circles, and this just can judge whether skew according to the center of circle of two circles, and the position according to the center of circle also can judge whether skew between layer and the layer; Again owing to be provided with two concentric circles; And big radius of circle is known, and this just makes side-play amount also can judge, and is very easy to use.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
A kind of PCB multi-layer sheet aligning structure, it comprises the several layers pcb board, and correspondence is provided with some groups of registration holes 2 respectively on said every layer of pcb board 1, and said every group of registration holes comprises one group of concentric circles at least, and said every group of concentric circles comprises two circles that radius does not wait.Like this; During use, the roundlet in every group of concentric circles is holed earlier with X-ray, if X-ray bore the center of circle of roundlet do not overlap with the center of circle of its concentric great circle; Promptly have and depart from; X-ray can judge in view of the above that the hole is inclined to one side, and according to the position of roundlet and great circle, can judge portal inclined to one side direction and hole deviator.Between layer and layer, can judge its offset direction and side-play amount according to the position in the concentrically ringed center of circle of correspondence.
Above-mentioned pcb board is a rectangle, and the direction setting on the limit of the said pcb board in edge respectively of said every group of registration holes.
Above-mentioned every group of registration holes comprises three groups of concentric circles, and three groups of concentric circles of said every group of registration holes are arranged in order along the direction on the PCB limit at its place, and the little radius of a circle in said every group of concentric circles is identical, and the big radius of circle in said every group of concentric circles does not wait.
Big radius of circle in above-mentioned every group of concentric circles is arranged by radii size along the direction on said PCB limit successively.
Big radius of circle in above-mentioned every group of concentric circles is followed successively by 3mil, 5mil, 7mil.Like this, can select the registration holes of different radii to judge successively.
Claims (5)
1. PCB multi-layer sheet aligning structure; It comprises the several layers pcb board; It is characterized in that: correspondence is provided with some groups of registration holes (2) respectively on said every layer of pcb board (1), and said every group of registration holes comprises one group of concentric circles at least, and said every group of concentric circles comprises two circles that radius does not wait.
2. PCB multi-layer sheet aligning structure according to claim 1 is characterized in that: said pcb board is a rectangle, and the direction setting on the limit of the said pcb board in edge respectively of said every group of registration holes.
3. PCB multi-layer sheet aligning structure according to claim 2; It is characterized in that: said every group of registration holes comprises three groups of concentric circles; Three groups of concentric circles of said every group of registration holes are arranged in order along the direction on the PCB limit at its place; Little radius of a circle in said every group of concentric circles is identical, and the big radius of circle in said every group of concentric circles does not wait.
4. PCB multi-layer sheet aligning structure according to claim 3 is characterized in that: the big radius of circle in said every group of concentric circles is arranged by radii size along the direction on said PCB limit successively.
5. according to claim 3 or 4 described PCB multi-layer sheet aligning structure, it is characterized in that: the big radius of circle in said every group of concentric circles is followed successively by 3mil, 5mil, 7mil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110091603 CN102729583A (en) | 2011-04-13 | 2011-04-13 | PCB multilayer board alignment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110091603 CN102729583A (en) | 2011-04-13 | 2011-04-13 | PCB multilayer board alignment structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102729583A true CN102729583A (en) | 2012-10-17 |
Family
ID=46986208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110091603 Pending CN102729583A (en) | 2011-04-13 | 2011-04-13 | PCB multilayer board alignment structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102729583A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913471A (en) * | 2012-12-31 | 2014-07-09 | 深南电路有限公司 | Method for examining position alignment of capacitor-embedding layer on capacitor-embedding plate |
-
2011
- 2011-04-13 CN CN 201110091603 patent/CN102729583A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913471A (en) * | 2012-12-31 | 2014-07-09 | 深南电路有限公司 | Method for examining position alignment of capacitor-embedding layer on capacitor-embedding plate |
| CN103913471B (en) * | 2012-12-31 | 2016-04-13 | 深南电路有限公司 | The method held and plate buries and holds layer contraposition is buried in a kind of inspection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121017 |