Invention Grant
- Patent Title: Copper foil with carrier, copper foil with resin and method for manufacturing printed wiring board
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Application No.: US16065519Application Date: 2016-12-01
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Publication No.: US10772219B2Publication Date: 2020-09-08
- Inventor: Yoshinori Matsuura
- Applicant: MITSUI MINING & SMELTING CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: MITSUI MINING & SMELTING CO., LTD.
- Current Assignee: MITSUI MINING & SMELTING CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@69d86140
- International Application: PCT/JP2016/085746 WO 20161201
- International Announcement: WO2017/110404 WO 20170629
- Main IPC: H05K3/46
- IPC: H05K3/46 ; B32B9/00 ; C23C14/20 ; C23C18/18 ; C23C18/16 ; C25D5/02 ; B32B15/08 ; C23C14/06 ; C23C14/35 ; H05K1/02 ; H05K3/00 ; H05K3/06 ; C25D1/04 ; H05K3/10 ; C23C18/38

Abstract:
There is provided a copper foil with a carrier particularly suitable for a circuit forming process for removing a carrier after laser drilling and desmear treatment, in detail, a copper foil with a carrier having high heat press resistance (heat resistance) of the carrier, laser drilling performance, corrosion resistance of the carrier against the desmear treatment, corrosion resistance of a release layer against the desmear treatment, and carrier release strength. The copper foil with a carrier comprises a carrier comprising at least one resin selected from polyethylene naphthalate (PEN) resins, polyethersulfone (PES) resins, polyimide resins, and polyphenylene sulfide resins; a silicon layer provided on the carrier, the silicon layer mainly containing silicon; a carbon layer provided on the silicon layer, the carbon layer mainly containing carbon; and an extremely thin copper layer provided on the carbon layer.
Public/Granted literature
- US20180376602A1 COPPER FOIL WITH CARRIER, COPPER FOIL WITH RESIN AND METHOD FOR MANUFACTURING PRINTED WIRING BOARD Public/Granted day:2018-12-27
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