Invention Grant
- Patent Title: Printed circuit board and method for manufacturing the same
- Patent Title (中): 印刷电路板及其制造方法
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Application No.: US13880896Application Date: 2011-07-01
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Publication No.: US09282626B2Publication Date: 2016-03-08
- Inventor: Jae Hyoun Yoo , Hyung Jong Kim , Jun Soo Park , Ki Yong Lee , Jin Goo Jeon
- Applicant: Jae Hyoun Yoo , Hyung Jong Kim , Jun Soo Park , Ki Yong Lee , Jin Goo Jeon
- Applicant Address: KR Seoul
- Assignee: LG INNOTEK CO., LTD.
- Current Assignee: LG INNOTEK CO., LTD.
- Current Assignee Address: KR Seoul
- Agency: Saliwanchik, Lloyd & Eisenschenk
- Priority: KR10-2010-0102386 20101020; KR10-2010-0107297 20101029
- International Application: PCT/KR2011/004870 WO 20110701
- International Announcement: WO2012/053728 WO 20120426
- Main IPC: H05K3/02
- IPC: H05K3/02 ; H05K3/04 ; H05K3/46 ; H05K1/02 ; H05K3/00

Abstract:
Disclosed are a printed circuit board and a method for manufacturing the same. The method for manufacturing the printed circuit board includes forming a base circuit board including a cavity circuit pattern in a cavity region on upper and lower portions of a substrate and internal circuit layers outside the cavity region, forming a cavity separation layer on the cavity circuit pattern, forming at least one pair of an insulating layer and a circuit layer on the base circuit board, cutting the insulating layer and the cavity separation layer provided on an etch stop pattern by controlling a focal length of a laser beam such that the laser beam reaches a surface of the base circuit board, and removing the insulating layer by separating the cavity separation layer to form the cavity. The cavity separation layer is formed on the cavity circuit pattern, and the resultant structure is cut to the cavity separation layer by using a laser so that the insulating layer is separated. Accordingly, the insulating layer in the cavity is easily removed.
Public/Granted literature
- US20130299223A1 PRINTED CIRCUIT BOARD AND METHOD FOR MANUFACTURING THE SAME Public/Granted day:2013-11-14
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