Invention Grant
- Patent Title: Adhesive, adhesive sheet, multi-layered adhesive sheet, and production method for electronic part
- Patent Title (中): 粘合剂,粘合片,多层粘合片和电子部件的制造方法
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Application No.: US12738083Application Date: 2007-10-16
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Publication No.: US08389629B2Publication Date: 2013-03-05
- Inventor: Takeshi Saito , Tomomichi Takatsu
- Applicant: Takeshi Saito , Tomomichi Takatsu
- Applicant Address: JP Tokyo
- Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
- Current Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- International Application: PCT/JP2007/070165 WO 20071016
- International Announcement: WO2009/050785 WO 20090423
- Main IPC: C08L83/06
- IPC: C08L83/06

Abstract:
A multi-layered adhesive sheet 100, includes: a substrate film 106, an adhesive layer 103 formed by coating an adhesive having a specific composition onto this substrate film 106, and a die attachment film 105 laminated on the adhesive layer 103. The multi-layered adhesive sheet 100 employing an adhesive having this specific composition has superior retention of die chip 108 during the dicing of silicon wafer 101, allows the die attachment film 105 and adhesive layer 103 to be easily peeled apart during a pick-up operation of the die chip 108, and prevents poor adhesion during the bonding of die chip 108 to lead frame 111.
Public/Granted literature
- US20100248452A1 ADHESIVE, ADHESIVE SHEET, MULTI-LAYERED ADHESIVE SHEET, AND PRODUCTION METHOD FOR ELECTRONIC PART Public/Granted day:2010-09-30
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