Processing method of high-precision printed connector PCB

A technology of printed plugs and processing methods, which is applied in the direction of printed circuit manufacturing, printed circuits, and the formation of electrical connections of printed components, and can solve the problems of poor matching between PCB printed plugs and sockets, excessive offset, communication equipment burnout, and contact sheet deviation. Migration and other issues, to achieve good product reliability, prevent short-circuit problems, and eliminate wear and tear

Inactive Publication Date: 2017-04-26
HUIZHOU KING BROTHER CIRCUIT TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to meet the signal transmission requirements, the size of the golden finger plug on the printed circuit board of the optical module is generally controlled at 9.2±0.1mm, and the dimensional tolerance from the graphics to the shape needs to be controlled at the standard of ±0.1mm. The actual PCB processing is subject to drilling, graphics transfer, and shape equipment. Influenced by precision, the ge

Method used

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Examples

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Embodiment Construction

[0022] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will further describe in detail the products of the present invention in conjunction with examples.

[0023] The invention discloses a processing method of a high-precision printed plug PCB. The key areas on both sides of the printed plug that are in contact with the SFP connector plug adopt a drilling and drilling groove forming process. In the drilling and drilling groove forming process, A 1.0mm hardened groove cutter is used for drilling grooves. The holes intersect each other, and a hole is drilled every 0.15mm to form a smooth shape area; the photosensitive dry film used for graphic transfer is Hitachi H with better sealing and anti-plating ability. -640 thick gold dry film, the pressurized water washing pressure is 1kg / c㎡ during the development line processing after the dry film exposure pattern is transferred.

[0024] Further, in the ...

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PUM

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Abstract

The invention discloses a processing method of a high-precision printed connector PCB, wherein the processing method comprises performing a drill slot forming step on key areas at two sides of the printed connector, wherein a 1.0 mm stiffened slotting cutter in the drill slot forming step, the holes are intersected, and one hole is drilled every 0.15mm for forming a smooth profile area. A photosensitive dry film for pattern transfer is a Hitachi H-640 thick metal dry film with relatively high hole sealing performance and relatively high electroplating resistance, and in production, a pressure is applied on the product line for keeping a washing pressure to 1kg/cm<2>. The processing method of the high-precision printed connector PCB has advantages of high processing precision, high product reliability, high process capability and low cost.

Description

technical field [0001] The invention relates to the technical field of printed circuit board processing, in particular to a processing method for a high-precision printed plug PCB. Background technique [0002] For printed plug products (also known as gold finger products), the tolerance from part of the graphics to the edge of the shape is required to be ±0.1mm. One end of this type of product is designed for gold finger plugs, using hard gold plating technology, and the PCB needs to be resistant to multiple insertions. , the representative product with a large demand in the industry is optical module PCB design, which is described below as a representative of such products. [0003] The optical module is composed of optoelectronic devices, functional circuits, and optical interfaces. The optoelectronic devices include two parts: transmitting and receiving. They are used as carriers for transmission between switches and devices. Compared with transceivers, they are more eff...

Claims

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Application Information

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IPC IPC(8): H05K3/40
CPCH05K3/403H05K2203/0214
Inventor 唐殿军陈春樊廷慧吴世亮
Owner HUIZHOU KING BROTHER CIRCUIT TECH
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