CN202005059U - Positioning mark structure used for measuring harmomegathus of six-layer HDI (High Density Inverter) circuit board - Google Patents
Positioning mark structure used for measuring harmomegathus of six-layer HDI (High Density Inverter) circuit board Download PDFInfo
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- CN202005059U CN202005059U CN 201120040056 CN201120040056U CN202005059U CN 202005059 U CN202005059 U CN 202005059U CN 201120040056 CN201120040056 CN 201120040056 CN 201120040056 U CN201120040056 U CN 201120040056U CN 202005059 U CN202005059 U CN 202005059U
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Abstract
The utility model discloses a positioning mark structure used for measuring the harmomegathus of a six-layer HDI (High Density Inverter) circuit board, wherein the six-layer HDI circuit board comprises a double-side core board with circuit layers at both sides, both sides of the double-side core board are alternately covered with two insulation layers and two circuit layers, the circuit layers are isolated by the insulation layers, the periphery of each circuit layer close to the edge of the board is etched to form an insulated board edge area, the board edge area at one side of the double-side core board is at least provided with a first pair of positioning marks and a second pair of positioning marks, the first pair of positioning marks and the second pair of positioning marks are formed on the board edge area by the residue of circuit layers and are arranged into a square array shape together, the two positioning marks of the two pair of positioning marks have the same shape, and the two positioning marks of the first pair of positioning marks have different shapes. The first pair of positioning marks and the second pair of positioning marks on the core board are not completely identical and can be directly distinguished, so the press fit shooting practice efficiency can be improved, shooting practice errors are prevented, measurement conversion errors are completely eradicated, and the rejection rate is effectively reduced.
Description
Technical field
The utility model relates to the expansion-proof project organization of multilayer circuit board, especially a kind of survey harmomegathus telltale mark structure of six layers of HDI wiring board.
Background technology
Insulating barrier and line layer superpose at interval and six layers of wiring board forming are 1+4+1 type six laminates by two-sided central layer two sides, need superpose twice of lamination of this six layers of wiring board, the harmomegathus phenomenon can take place during the wiring board lamination, for high density interconnect (HDI) circuit board, its harmomegathus ratio needs strict control, and therefore each lamination all need be measured the harmomegathus ratio that converses; Six layers of HDI wiring board of traditional 1+4+1 type are to produce two pairs of telltale marks that shape is all identical in two-sided central layer one panel edges district, and first pair of telltale mark of contraposition carries out the X-RAY target practice behind the lamination, measures the location distance between borehole after practicing shooting, conversion harmomegathus value; Then during the inferior outer-layer circuit after making lamination for the first time, second pair of contraposition specifically labelled one of them produce a shape and different before alignment mark to distinguish second pair of telltale mark; Second pair of telltale mark of contraposition carries out the X-RAY target practice behind the secondary lamination, measures the location distance between borehole after practicing shooting, conversion harmomegathus value; Because two pairs of location holes easily obscure when once practicing shooting, and secondary also need make the telltale mark of differentiation before practicing shooting, and causes the increase of wrong amount data and bad scrappage.
Summary of the invention
In order to overcome above-mentioned defective, the utility model provides a kind of survey harmomegathus telltale mark structure of six layers of HDI wiring board, and the mistake that effectively prevents to practice shooting causes harmomegathus DATA REASONING mistake, reduces bad scrapping.
The utility model for the technical scheme that solves its technical problem and adopt is:
A kind of survey harmomegathus telltale mark structure of six layers of HDI wiring board, these six layers of HDI wiring boards comprise that a two sides is the two-sided central layer of line layer, this two-sided central layer two sides all alternately is coated with two insulating barriers and two line layers, separate by insulating barrier between each line layer, each line layer forms the edges of boards district of insulation near etching around the edges of boards, at least be provided with first in the edges of boards district of described two-sided central layer one side, two pairs of telltale marks, described first, to be that line layer is residual be formed in the edges of boards district for the two pairs of telltale marks, described first, two pairs of telltale marks are arranged in the square formation type jointly, wherein two telltale mark shapes in the second pair of telltale mark are identical, two telltale mark shape differences in the first pair of telltale mark.
As further improvement of the utility model, specifically labelled shape in described first pair of telltale mark is identical with each the telltale mark shape in second pair of telltale mark.
The beneficial effects of the utility model are: six layers of HDI wiring board advanced twice lamination by central layer and formed, first and second is incomplete same to telltale mark on the central layer, can directly distinguish, first and second time lamination only need be distinguished contraposition and practice shooting first and second to telltale mark, can measure the harmomegathus ratio behind the lamination that converses twice, behind the lamination, also need not to do again time outer field differentiation telltale mark for the first time; Improve the pressing target practice efficiency like this, prevent the mistake of practicing shooting, stopped measurement conversion mistake, effectively reduce bad scrappage.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the prior art constructions schematic diagram that the utility model contrasted.
Embodiment
Embodiment: a kind of survey harmomegathus telltale mark structure of six layers of HDI wiring board, these six layers of HDI wiring boards comprise that a two sides is the two-sided central layer of line layer, this two-sided central layer two sides all alternately is coated with two insulating barriers and two line layers, separate by insulating barrier between each line layer, each line layer forms the edges of boards district 1 of insulation near etching around the edges of boards, at least be provided with first in the edges of boards district 1 of described two-sided central layer one side, two pairs of telltale marks 21,22, described first, two pairs of telltale marks 21,22 is that line layer is residual is formed in the edges of boards district 1, described first, two pairs of telltale marks 21,22 are arranged in the square formation type jointly, wherein two telltale mark shapes in the second pair of telltale mark 22 are identical, two telltale mark shape differences in the first pair of telltale mark 21.
Specifically labelled shape in described first pair of telltale mark 21 is identical with each the telltale mark shape in second pair of telltale mark 22.
Six layers of HDI wiring board advanced twice lamination by central layer and formed, first and second is incomplete same to telltale mark on the central layer, can directly distinguish, first and second time lamination only need be distinguished contraposition and practice shooting first and second to telltale mark, can measure the harmomegathus ratio behind the lamination that converses twice, behind the lamination, also need not to do again time outer field differentiation telltale mark for the first time; Improve the pressing target practice efficiency like this, prevent the mistake of practicing shooting, stopped measurement conversion mistake, effectively reduce bad scrappage.
Claims (2)
1. the survey harmomegathus telltale mark structure of six layers of HDI wiring board, these six layers of HDI wiring boards comprise that a two sides is the two-sided central layer of line layer, this two-sided central layer two sides all alternately is coated with two insulating barriers and two line layers, separate by insulating barrier between each line layer, each line layer forms the edges of boards district (1) of insulation near etching around the edges of boards, at least be provided with first in the edges of boards district (1) of described two-sided central layer one side, two pairs of telltale marks (21,22), described first, two pairs of telltale marks (21,22) be formed in the edges of boards district (1) for line layer is residual, it is characterized in that: described first, two pairs of telltale marks (21,22) be arranged in the square formation type jointly, wherein two telltale mark shapes in second pair of telltale mark (22) are identical, two telltale mark shape differences in first pair of telltale mark (21).
2. the survey harmomegathus telltale mark structure of six layers of HDI wiring board according to claim 1 is characterized in that: specifically labelled shape in described first pair of telltale mark (21) is identical with each the telltale mark shape in second pair of telltale mark (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120040056 CN202005059U (en) | 2011-02-17 | 2011-02-17 | Positioning mark structure used for measuring harmomegathus of six-layer HDI (High Density Inverter) circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120040056 CN202005059U (en) | 2011-02-17 | 2011-02-17 | Positioning mark structure used for measuring harmomegathus of six-layer HDI (High Density Inverter) circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202005059U true CN202005059U (en) | 2011-10-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120040056 Expired - Fee Related CN202005059U (en) | 2011-02-17 | 2011-02-17 | Positioning mark structure used for measuring harmomegathus of six-layer HDI (High Density Inverter) circuit board |
Country Status (1)
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| CN (1) | CN202005059U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607368A (en) * | 2012-03-20 | 2012-07-25 | 昆山鼎鑫电子有限公司 | Laser drilling deviation inspection method for HDI (High Density Interconnection) plate |
-
2011
- 2011-02-17 CN CN 201120040056 patent/CN202005059U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607368A (en) * | 2012-03-20 | 2012-07-25 | 昆山鼎鑫电子有限公司 | Laser drilling deviation inspection method for HDI (High Density Interconnection) plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20140217 |