Synthesis of high purity o-cresol formaldehyde novolac epoxy resins

descriptionPublicationkeyboard_double_arrow_right Article 01 May 1991 English Publisher:Springer Science and Business Media LLCJournal:Polymer Bulletin, volume 25, pages 559-565 (issn: 0170-0839, eissn: 1436-2449,

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Authors: Chun-Shan Wang; Zeng-Kun Liao;

doi: 10.1007/bf00293514

Synthesis of high purity o-cresol formaldehyde novolac epoxy resins

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Abstract

The content of total chlorine in o-cresol formaldehyde novolac epoxy resin (CNE), the main resin component for encapsulation formulation, affects the reliability of semi-conductor device greatly and it is one of the major criteria used by the electronic industry in measuring the quality of resins. A new process which synthesizes a high purity CNE with less than 300 ppm total chlorine content has been developed. This high purity resin has provided an extended device life under the accelerated stress test condition.

Related Organizations

Dow Chemical (United States)
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National Cheng Kung University
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