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PCB for medical detection and manufacturing method of PCB

A technology for PCB boards and manufacturing methods, which is applied in the fields of printed circuit manufacturing, cleaning/polishing of conductive patterns, secondary treatment of printed circuits, etc., can solve the problems that cannot be used in the field of medical testing, narrow application range, etc., and avoid difficulties in developing , reduce the effect of air bubbles

Inactive Publication Date: 2020-11-20
鹤山市中富兴业电路有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing PCB boards are generally provided with a solder resist layer, a copper plating layer and a base layer in order from top to bottom, which can only meet the application of PCB boards in ordinary circuit carriers, and cannot be used in the field of medical testing, and the application range is narrow

Method used

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  • PCB for medical detection and manufacturing method of PCB
  • PCB for medical detection and manufacturing method of PCB
  • PCB for medical detection and manufacturing method of PCB

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Embodiment Construction

[0030] This part will describe the specific embodiment of the present invention in detail, and the preferred embodiment of the present invention is shown in the accompanying drawings. Each technical feature and overall technical solution of the invention, but it should not be understood as a limitation on the protection scope of the present invention.

[0031] In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0032] I...

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Abstract

The invention discloses a PCB for medical detection and a manufacturing method of the PCB, the PCB comprises a substrate, a first solder mask layer and a second solder mask layer, the first solder mask layer is formed over the substrate through a wet film solder mask or dry film solder mask, and the first solder mask layer is provided with a first window; the second solder mask layer is formed over the first solder mask layer through dry film solder mask, the second solder mask layer is provided with a second window, the second window is located over the first window, and the second window islarger than the first window; a groove structure is constructed by adopting multiple times of resistance welding; the solder mask windows are enlarged layer by layer to form a stepped groove structure, compared with a vertical groove structure, the step groove with the gradually enlarged window is beneficial to the stability of containing liquid drops; the step-by-step enlarging structure of the solder mask window can ensure that cracks do not appear between the solder mask layers of different times and reduce bubbles appearing when liquid is contained while ensuring the height requirement ofthe groove, the second solder mask layer is formed by the dry film solder mask, the window exposed out of the first solder mask layer cannot be filled, and development difficulty is avoided.

Description

technical field [0001] The invention relates to the field of PCB boards, in particular to a PCB board for medical testing and a method for manufacturing the PCB board. Background technique [0002] PCB board, also known as printed circuit board or printed circuit board, is a provider of electrical connections for electronic components. The main advantage of PCB board is that it greatly reduces wiring and assembly errors, and improves automation level and production labor rate. The existing PCB boards are generally provided with a solder mask layer, a copper plating layer and a base layer sequentially from top to bottom, which can only meet the application of PCB boards in ordinary circuit carriers, and cannot be used in the field of medical testing, and the application range is relatively narrow. Contents of the invention [0003] The object of the present invention is to at least solve one of the technical problems in the prior art, and provide a PCB board for medical tes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K3/28H05K3/26
CPCH05K3/26H05K3/282
Inventor 王先锋陈山清
Owner 鹤山市中富兴业电路有限公司
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