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Title:
BASE FOR BACK GRIND TAPES, AND BACK GRIND TAPE
Document Type and Number:
WIPO Patent Application WO/2015/156389
Kind Code:
A1
Abstract:
This base for back grind tapes is provided with: a base film having a Young's modulus of 600 MPa or more; and a buffer layer that is provided on one surface of the base film, is formed of an urethane-containing cured product, and has a tan δ peak temperature of 60°C or less.

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Inventors:
MORITA YUKI (JP)
SAITO YOSUKE (JP)
OKUJI SHIGETO (JP)
Application Number:
PCT/JP2015/061225
Publication Date:
October 15, 2015
Filing Date:
April 10, 2015
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Assignee:
LINTEC CORP (JP)
International Classes:
H01L21/304; B32B27/00; C09J7/29; C09J201/00; H01L21/301
Foreign References:
JP2005343997A2005-12-15
JP2003147300A2003-05-21
JP2003092273A2003-03-28
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
Tamotsu Otani (JP)
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