Invention Grant
- Patent Title: Printed wiring board and method for manufacturing printed wiring board
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Application No.: US17772453Application Date: 2020-10-27
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Publication No.: US11979982B2Publication Date: 2024-05-07
- Inventor: Keiichiro Yamamoto , Kazuo Tani , Masaharu Yano
- Applicant: TANAZAWA HAKKOSHA CO., LTD.
- Applicant Address: JP Higashiosaka
- Assignee: TANAZAWA HAKKOSHA CO., LTD.
- Current Assignee: TANAZAWA HAKKOSHA CO., LTD.
- Current Assignee Address: JP Higashiosaka
- Agency: Rabin & Berdo, P.C.
- Priority: JP 19197471 2019.10.30
- International Application: PCT/JP2020/040252 2020.10.27
- International Announcement: WO2021/085417A 2021.05.06
- Date entered country: 2022-04-27
- Main IPC: H05K1/02
- IPC: H05K1/02 ; B29C70/30 ; B32B15/08 ; B32B15/14 ; B32B15/20 ; H05K1/03 ; H05K3/00 ; H05K3/02

Abstract:
Printed wiring board manufacturing method, and printed wiring board. The method includes preparing sheet material including cloth-like material woven of reinforced fiber with a 90 degree between warp thread and a weft thread; arranging the sheet material on a cutting-out apparatus so that the sheet material is tilted 5 to 30 degrees with respect to threads configuring the cloth-like material and cutting a portion to cross the cloth-like-material configuration threads aligned on a cutting blade at 5 to 30 degrees; cutting the sheet material from the tilted sheet material with the cut portion crossing the cloth-like-material configuration threads aligned on the cutting blade to form the sheet material with a circumferential edge of the sheet material crossing the cloth-like material configuration threads at 5 to 30 degrees; creating a mother laminate configured with the sheet material as an inner-layer board or an insulating board; and providing a conductor pattern on a metal layer of the mother laminate along a circumferential edge portion of the mother laminate.
Public/Granted literature
- US20230026493A1 PRINTED WIRING BOARD AND METHOD FOR MANUFACTURING PRINTED WIRING BOARD Public/Granted day:2023-01-26
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