Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PHOTOSENSITIVE COMPOSITION AND SOLDER RESIST COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2011/018907
Kind Code:
A1
Abstract:
Disclosed is a photosensitive composition which is capable of providing a resist film that does not easily suffer from discoloration such as yellowing even when the resist film is exposed to a high temperature around 200˚C or more, such as the temperature during solder reflowing. Specifically disclosed is a photosensitive composition which contains either a polymerizable hydrocarbon monomer (A) and/or a polymerizable hydrocarbon polymer (B) and an inorganic filler (C). The inorganic filler (C) is characterized in that when a solution obtained by adding 5 g of the inorganic filler (C) into 100 mL of purified water is kept boiling for 5 minutes and then left at rest until the temperature thereof falls to 23˚C so that a boiled solution is obtained, and then water in an amount equal to the amount of water vaporized by the boiling is added to the thus-obtained boiled solution so that the resulting solution is in an amount of 100 mL, the resulting solution has a pH of 6.8-11 (inclusive).

Inventors:
NAKAMURA SHIGERU (JP)
NISHIMURA TAKASHI (JP)
KAGE SHUUJI (JP)
WATANABE TAKASHI (JP)
TAKAHASHI TOSHIO (JP)
Application Number:
PCT/JP2010/054842
Publication Date:
February 17, 2011
Filing Date:
March 19, 2010
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SEKISUI CHEMICAL CO LTD (JP)
NAKAMURA SHIGERU (JP)
NISHIMURA TAKASHI (JP)
KAGE SHUUJI (JP)
WATANABE TAKASHI (JP)
TAKAHASHI TOSHIO (JP)
International Classes:
G03F7/004; G03F7/027; G03F7/038; H01L21/027; H05K3/28
Domestic Patent References:
WO2009090867A12009-07-23
WO2006022207A12006-03-02
Foreign References:
JP2007249148A2007-09-27
JP2008299294A2008-12-11
JPH10306237A1998-11-17
JP2007322546A2007-12-13
JP2009194222A2009-08-27
Other References:
SEIJIRO ITO, GANRYO NO JITEN, 25 September 2000 (2000-09-25), pages 157
Attorney, Agent or Firm:
MIYAZAKI, Chikara et al. (JP)
Miyazaki Chikara (JP)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: WIRELESS COMMUNICATION SYSTEM, SMALL-CELL BASE STATION, RADIO TERMINAL, TRANSMISSION POWER CONTROL M...

Next Patent: METHOD FOR PRODUCING STRONGLY ACIDIC ZIRCONIUM PARTICLES, METHOD FOR PRODUCING PROTON CONDUCTING MAT...