CN214757060U

CN214757060U - Fool-proof structure for prepreg

Info

Publication number: CN214757060U
Application number: CN202120021686.8U
Authority: CN
Inventors: 喻恩; 吴瑞成; 刘佳
Original assignee: Dongshan Precision Singapore Ltd
Current assignee: Dongshan Precision Singapore Ltd
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2021-11-16
Anticipated expiration: 2031-01-05

Abstract

The utility model discloses a slow-witted structure is prevented to prepreg is applied to the prepreg, is provided with the categorised hole that the position is the same on the prepreg of the same kind of specification, and the categorised hole mutual dispersion on the prepreg of different specifications. The prepreg of different types can be simply and conveniently distinguished through the classification holes in different positions on the prepreg, visual fool-proofing of the prepreg can be effectively achieved, the field management difficulty of the prepreg and the error probability in the first-line manufacturing process are reduced, and the product quality is favorably improved.

Description

Fool-proof structure for prepreg

Technical Field

The utility model relates to a circuit board technical field, in particular to fool-proof structure of prepreg.

Background

At present, with the rapid development of 5G communication, the structure of the multilayer rigid circuit board becomes more complex and the requirement for technical specification is higher, resulting in the directional development of high-level, high-density and high-performance of the circuit board. For higher-level HDI boards or higher-level multilayer circuit boards, customer requirements for the dielectric layer of the PCB are particularly demanding, and thus, complex stacked designs are emerging. Various types of prepregs often appear in a PCB product, and even a part of products have the same type of stacked design with different numerical values, so that the material management difficulty of a production line field and the error probability of an operator in the production line are increased, and further, the number of defective products is increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a slow-witted structure is prevented to prepreg for distinguish the prepreg of different grade type.

According to the utility model discloses prepreg prevents slow-witted structure is applied to prepreg, with the specification be provided with the same categorised hole in position on the prepreg, different specifications on the prepreg categorised hole mutual dispersion.

According to the utility model discloses slow-witted structure is prevented to prepreg has following beneficial effect at least:

the prepreg of different types can be simply and conveniently distinguished through the classification holes in different positions on the prepreg, visual fool-proofing of the prepreg can be effectively achieved, the field management difficulty of the prepreg and the error probability in the first-line manufacturing process are reduced, and the product quality is favorably improved.

According to some embodiments of the utility model, different specifications on the prepreg categorised hole winds the center of prepreg is clockwise or anticlockwise arranged.

According to some embodiments of the present invention, the classification holes are arranged along a straight line on the prepreg of different specifications.

According to some embodiments of the invention, each sheet the number of classification holes on the prepreg is one.

According to some embodiments of the invention, the classification holes are adjacent to the corresponding edges of the prepreg.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is one of schematic diagrams of a fool-proof structure of a prepreg according to an embodiment of the present invention;

fig. 2 is a second schematic diagram of the fool-proof structure of the prepreg according to the embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

The embodiment discloses a fool-proof structure of a prepreg, which is applied to the prepreg, wherein classification holes with the same position are arranged on the prepregs with the same specification, and the classification holes on the prepregs with different specifications are mutually dispersed. The prepreg of different types can be simply and conveniently distinguished through the classification holes in different positions on the prepreg, visual fool-proofing of the prepreg can be effectively achieved, the field management difficulty of the prepreg and the error probability in the first-line manufacturing process are reduced, and the product quality is favorably improved.

In a certain type of PCB product, 5 prepregs with different specifications need to be used for lamination, wherein the specifications of the 5 prepregs are shown in table 1:

name (R)	PP1	PP2	PP3	PP4	PP5
						Model number	7628	2116	2313	1080	106
Drill belt	1#	2#	3#	4#	5#

TABLE 1

According to different sizes and design requirements of PCB products, classification holes can be formed in the prepregs in various modes. For example, referring to fig. 1, sorting holes on prepregs with different specifications are arranged clockwise or counterclockwise around the center of the prepreg. For another example, referring to fig. 2, sorting holes on prepregs with different specifications are arranged along a straight line. Wherein different drill strips represent the position of the sorting holes on the prepreg of the corresponding specification.

In order to reduce the cost and the design difficulty of the position arrangement of the classification holes, the number of the classification holes on each prepreg is one.

Because the middle part of the PCB product is generally the functional area printed with the circuit pattern, in order to ensure the distribution uniformity of the resin after pressing in the functional area, the classification holes are adjacent to the edges of the corresponding prepregs, and the influence of the classification holes on the functional area can be reduced.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides a prepreg prevents slow-witted structure, is applied to the prepreg, its characterized in that, the same specification be provided with the same position classification hole on the prepreg, different specifications on the prepreg classification hole mutual dispersion.

2. The prepreg fool-proofing structure of claim 1, wherein the sorting holes in the prepregs of different specifications are arranged clockwise or counterclockwise around the center of the prepreg.

3. The prepreg fool-proofing structure of claim 1, wherein the sorting holes in the prepregs of different specifications are arranged in a straight line.

4. The prepreg foolproof structure of any one of claims 1 to 3, characterized in that the number of the sorting holes per prepreg is one.

5. Prepreg fool-proofing structure according to any of claims 1-3, characterized in that the sorting holes are adjacent to the respective edges of the prepreg.