CN215121369U - Make things convenient for multilayer circuit board target structure that squints detected - Google Patents

Abstract

The utility model belongs to the technical field of the circuit board is made, a make things convenient for multilayer circuit board target structure that skew detected is related to, the circuit board includes the first plywood of two adjacent settings, locates two respectively the second plywood in the first plywood outside, locate two respectively the third plywood in the second plywood outside with locate two respectively the fourth plywood in the third plywood outside, every layer the circuit board all is equipped with a plurality of target positions that the position corresponds, all target positions of first plywood are real target position, the second plywood the third plywood with the fourth plywood replaces real target position with a windowing hole according to the preface. The utility model discloses utilize the fenestration hole to let the real target position of inlayer can follow the outside and directly see, under the prerequisite that does not increase the cost of labor, personnel can bore quick self-checking after accomplishing at two and combine goods inlayer drilling skew situations, in time discover drilling skew mistake goods, in time revise, avoid because the waste of the manufacturing cost that drilling skew mistake caused.

Description

Make things convenient for multilayer circuit board target structure that squints detected

Technical Field

The utility model relates to a circuit board manufacturing technology field, in particular to make things convenient for multilayer circuit board target structure that squints detected.

Background

Because the multilayer circuit board in the past is laminated simply, the traditional two drill targets are single, and each circuit board is positioned at four corners of the upper, lower, left and right sides respectively. With the increasing development of electronic products, the multilayer circuit board is designed more and more, the number of laminated layers of the board is more and more, and particularly, the drilling deviation of the inner layer circuit cannot be detected by using the traditional method for the combined board with more than 5 layers. Because the target of the inner layer circuit board can be covered by the outer layer circuit board after each lamination. Therefore, the personnel can not effectively check the multilayer circuit board after the combination of the two drills and cannot find out the products with the inner layer circuit deviated from the two drills in time, and the production time and labor are wasted and the production cost is seriously wasted if the products are electrically tested and checked after the whole products are finished.

Therefore, it is necessary to invent a new technical solution to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multilayer circuit board target structure that convenient skew detected can make things convenient for the timely discovery of drilling skew mistake goods.

The utility model discloses a following technical scheme realizes above-mentioned purpose: the utility model provides a make things convenient for multilayer circuit board target structure that skew detected, the circuit board includes the first plywood of two adjacent settings, locates two respectively the second plywood in the first plywood outside, locates two respectively the third plywood in the second plywood outside with locate two respectively the fourth plywood in the third plywood outside, every layer the circuit board all is equipped with a plurality of target positions that the position corresponds, all target positions of first plywood are real target position, the second plywood the third plywood with the fourth plywood replaces a real target position with a windowing hole according to the preface.

Specifically, the target positions are arranged in a row at the part to be cut of the circuit board.

Specifically, the number of layers of the circuit board is 2N, N is larger than or equal to 4, and the number of target positions on each circuit board is N.

Furthermore, the real target position comprises five target holes which are arranged in a cross shape, and the target holes are a central hole positioned at the center of the real target position and four peripheral holes which are uniformly distributed around the central hole.

The utility model discloses technical scheme's beneficial effect is:

the utility model discloses utilize the fenestration hole to let the real target position of inlayer can follow the outside and directly see, under the prerequisite that does not increase the cost of labor, personnel can bore quick self-checking after accomplishing at two and combine goods inlayer drilling skew situation, in time discover drilling skew mistake goods, in time revise, accomplish that the circulation goods does not have two and bores the skew mistake, avoid because the waste of the manufacturing cost that drilling skew mistake caused.

Drawings

FIG. 1 is a schematic view of stacking target positions of a multilayer wiring board according to an embodiment.

The figures in the drawings represent:

1a, 1 b-a first layer plate;

2a, 2 b-a second layer plate;

3a, 3 b-third layer plate;

4a, 4 b-a fourth layer;

5-actual target site, 51-central hole, 52-peripheral hole;

6-fenestration.

Detailed Description

The present invention will be described in further detail with reference to specific examples.

Example (b):

as shown in fig. 1, the utility model discloses a make things convenient for multilayer circuit board target structure that skew detected, the circuit board includes first plywood 1a (1b) of two adjacent settings, locatesecond plywood 2a (2b) in two first plywood 1a (1b) outsides respectively, locatethird plywood 3a (3b) in twosecond plywood 2a (2b) outsides respectively and locatefourth plywood 4a (4b) in twothird plywood 3a (3b) outsides respectively, every layer of circuit board all is equipped with a plurality of target positions that the position corresponds, all target positions of first plywood 1a (1b) arereal target position 5,second plywood 2a (2b),third plywood 3a (3b) andfourth plywood 4a (4b) replace areal target position 5 with antrompil hole 6 according to the preface. Like thisfenestration 6 can let thereal target position 5 of inner plating expose, so can guarantee that every layer of circuit board all has areal target position 5 can be observed by direct observation, under the prerequisite that does not increase the cost of labor, personnel can be after two drills are accomplished quick self-checking combine goods inlayer drilling skew situation, in time discover drilling skew mistake goods, in time revise, accomplish that the circulation goods do not have two drills skew errors, avoid because the waste of the manufacturing cost that drilling skew mistake caused.

As shown in FIG. 1, the target sites (real target sites 5 orfenestration sites 6 are arranged in a row on the portion of the circuit board to be cut off, the target sites are only useful when positioned in a stacked manner and will be cut off along with the waste material after manufacture and testing is complete, and the arrangement in a row can occupy less width space.

The number of layers of the circuit boards is 2N, N is more than or equal to 4, and the number of target positions on each circuit board is N. In practical application, the number of layers of the circuit board can be increased arbitrarily according to requirements based on the same principle.

As shown in fig. 1, thereal target site 5 includes five target holes arranged in a cross shape, the target holes being acentral hole 51 located at the center of thereal target site 5 and fourperipheral holes 52 evenly distributed around thecentral hole 51. The target hole cross-shaped arrangement is a common structure ofreal target positions 5, and offset representation can be respectively carried out on the length direction and the width direction.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims (4)

1. The utility model provides a make things convenient for multilayer circuit board target structure that skew detected, the circuit board includes the first plywood of two adjacent settings, locates two respectively the second plywood in the first plywood outside, locate two respectively the third plywood in the second plywood outside with locate two respectively the fourth plywood in the third plywood outside, its characterized in that: every layer the circuit board all is equipped with a plurality of target positions that the position corresponds, all target positions of first plywood are real target position, the second plywood third plywood with a window hole replaces real target position in proper order.

2. The multilayer wiring board target structure that facilitates offset detection of claim 1, wherein: the target positions are arranged in a row at the part to be cut of the circuit board.

3. The multilayer wiring board target structure that facilitates offset detection of claim 1, wherein: the number of layers of the circuit board is 2N, N is more than or equal to 4, and the number of target positions on each circuit board is N.

4. The multilayer circuit board target structure facilitating offset detection according to any one of claims 1 to 3, wherein: the real target position comprises five target holes which are arranged in a cross shape, and the target holes are a central hole positioned at the circle center of the real target position and four peripheral holes which are uniformly distributed around the central hole.

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