Invention Grant
- Patent Title: Printed circuit boards having pads for solder balls and methods for the implementation thereof
- Patent Title (中): 具有用于焊球的焊盘的印刷电路板及其实施方法
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Application No.: US13195638Application Date: 2011-08-01
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Publication No.: US08533657B2Publication Date: 2013-09-10
- Inventor: Cheng Siew Tay , Wendy Chet Ming Ngoh , Choi Keng Chan
- Applicant: Cheng Siew Tay , Wendy Chet Ming Ngoh , Choi Keng Chan
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Blakely, Sokoloff, Taylor & Zafman LLP
- Main IPC: G06F17/50
- IPC: G06F17/50

Abstract:
A printed circuit board includes a group of pads suitable to be soldered to a respective group of solder-balls of a device. Each pad of the group has a crack initiation point on its perimeter at a location where cracks in a solder-ball are anticipated to start after that solder-ball is soldered to that pad. For a pad of that group having a microvia located therein, a center of that microvia is located farther than a center of that pad from its crack initiation point. For a pad of that group having a trace merging along a portion of its perimeter, that portion does not include a vicinity of that crack initiation point.
Public/Granted literature
- US20110310547A1 PRINTED CIRCUIT BOARDS HAVING PADS FOR SOLDER BALLS AND METHODS FOR THE IMPLEMENTATION THEREOF Public/Granted day:2011-12-22
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