Invention Grant
- Patent Title: Structuring and circuitizing printed circuit board through-holes
- Patent Title (中): 印刷电路板通孔的结构化和电路化
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Application No.: US11535368Application Date: 2006-09-26
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Publication No.: US07935895B2Publication Date: 2011-05-03
- Inventor: David D. Senk , Joe D. Dickson
- Applicant: David D. Senk , Joe D. Dickson
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agent P. Su
- Main IPC: H05K1/11
- IPC: H05K1/11 ; H01K3/10

Abstract:
Methods and apparatus for creating independent circuit connections within a through-hole of a substrate are described. According to one aspect of the present invention, a method includes defining a through-hole in a substrate, applying a conductive plating to a holewall of the through-hole, and selectively removing at least a first area of the plating. The through-hole has a height relative to a first axis, and the perimeter of the through-hole at each point along the first axis is approximately the same. Selectively removing the first area of the plating includes defining second areas of the plating. At least one of the plurality of second areas does not span a height of the hole.
Public/Granted literature
- US20080073113A1 STRUCTURING AND CIRCUITIZING PRINTED CIRCUIT BOARD THROUGH-HOLES Public/Granted day:2008-03-27
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