发明授权
US5532109A Azo dyes as adhesion promotion additive in polydimethylglutarimide
失效
偶氮染料作为粘合促进剂在聚二甲基戊二酰亚胺中
- 专利标题: Azo dyes as adhesion promotion additive in polydimethylglutarimide
- 专利标题(中): 偶氮染料作为粘合促进剂在聚二甲基戊二酰亚胺中
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申请号: US542479申请日: 1995-10-13
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公开(公告)号: US5532109A公开(公告)日: 1996-07-02
- 发明人: Mohamad T. Krounbi , Alfred F. Renaldo , Douglas J. Werner
- 申请人: Mohamad T. Krounbi , Alfred F. Renaldo , Douglas J. Werner
- 申请人地址: NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: NY Armonk
- 主分类号: G03F7/085
- IPC分类号: G03F7/085 ; H05K3/14 ; G03F7/26
摘要:
In a bi-layer lift-off process, the adhesion characteristics of a PMGI release layer are substantially improved by the use of ortho-hydroxy substituted 4-phenylazo compounds (azo dyes), a class of nonactinic dyes, as an adhesion promoter additive. These azo dyes, due to their chemical structure, exhibit selective binding to various metals by acting as a chelating ligand to the metal surface. Formulations of a specific azo dye, Sudan Orange G, at concentrations from 0.25 to 1.0 percent (by weight) in PMGI exhibits no loss of adhesion at prebake temperatures in the range of 120 to 160 degrees C.