Invention Grant
- Patent Title: Printed circuit board structure
- Patent Title (中): 印刷电路板结构
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Application No.: US12646904Application Date: 2009-12-23
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Publication No.: US08243464B2Publication Date: 2012-08-14
- Inventor: Hsien-Chieh Lin
- Applicant: Hsien-Chieh Lin
- Applicant Address: TW Taoyuan County
- Assignee: Nan Ya PCB Corp.
- Current Assignee: Nan Ya PCB Corp.
- Current Assignee Address: TW Taoyuan County
- Priority: TW98137187A 20091103
- Main IPC: H05K7/12
- IPC: H05K7/12 ; H05K7/00 ; H05K1/11

Abstract:
Disclosed is a printed circuit board structure which is manufactured by providing a core board, forming an inner circuit layer on the core board surface, forming a bonding pad on the inner circuit, forming a ring-shaped anti-etching layer on the bonding pad, forming an anti-soldering insulation layer on the ring-shaped anti-etching layer and the bonding pad, and forming an opening to expose a part of the bonding pad, wherein the radius of the opening is shorter than the radius of the ring-shaped anti-etching layer, and the bonding pad surface is free of concave. The described structure may prevent the solder extending along the bottom void of the anti-soldering insulation layer to other regions.
Public/Granted literature
- US20110100695A1 PRINTED CIRCUIT BOARD STRUCTURE Public/Granted day:2011-05-05
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