发明名称 RELEASE SHEET FOR SEMICONDUCTOR MOLD
摘要 PROBLEM TO BE SOLVED: To enable a surface state of a semiconductor package to be appropriate satin finish when the semiconductor package is molded with a resin mold. SOLUTION: A release sheet contains at least a release layer bearing release of a semiconductor package molded article and a substrate layer for supporting the release layer. For the release sheet, a surface roughness of the substrate layer Rz is made≥1.0μm. Thereby, when the semiconductor package is molded with a resin mold, the surface state can be appropriate satin finish and wrong reading of a laser marking character can be decreased. COPYRIGHT: (C)2004,JPO
申请公布号 JP2004074713(A) 申请公布日期 2004.03.11
申请号 JP20020241097 申请日期 2002.08.21
申请人 HITACHI CHEM CO LTD 发明人 YAMAMOTO OSAMU;IKETANI TAKUJI;HIROSE AKIRA
分类号 B32B27/00;B29C33/68;B29L31/34;H01L21/56;(IPC1-7):B29C33/68 主分类号 B32B27/00
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