Title:
光半導体素子用封止剤及び光半導体素子
Document Type and Number:
Japanese Patent JP4452755
Kind Code:
B2
Abstract:
An object of the present invention is to provide a highly transparent, heat-resistant and light-resistant sealing agent for an optical semiconductor which provides excellent adhesion, and is capable of stably maintaining its shape and preventing sedimentation of a phosphor when used to seal a light emitting device of an optical semiconductor device. A further object of the present invention is to provide an optical semiconductor device formed by using the sealing agent for an optical semiconductor device. The sealing agent for an optical semiconductor device, which comprises: a silicone resin having a cyclic ether-containing group in the molecular structure; a heat curing agent capable of reacting with the cyclic ether-containing group; and a fine particulate material of silicon oxide, and the sealing agent having a viscosity of 500 to 10,000 mPa·s measured by an E-type viscometer at 25°C at 5 rpm, a thixotropic value of 1.2 to 2.5 calculated by dividing a viscosity measured by the E-type viscometer at 25°C at 1 rpm by a viscosity measured at 10 rpm (viscosity at 1 rpm/viscosity at 10 rpm), and a minimum viscosity of 100 mPa·s or higher measured at 1s -1 in the temperature range of 25°C to a curing temperature by a parallel plate rheometer.
Inventors:
Tanigawa Mitsuru
Takashi Watanabe
Takashi Nishimura
Takashi Watanabe
Takashi Nishimura
Application Number:
JP2008529395A
Publication Date:
April 21, 2010
Filing Date:
June 13, 2008
Export Citation:
Assignee:
Sekisui Chemical Co.,Ltd.
International Classes:
C08G59/32; C08G59/72; C08G77/14; C08K3/36; C08K9/06; C08L63/00; H01L23/29; H01L23/31; H01L33/56
Domestic Patent References:
| JP2006282988A | 2006-10-19 | |||
| JP2005171021A | 2005-06-30 | |||
| JPH06240001A | 1994-08-30 | |||
| JP2007106798A | 2007-04-26 | |||
| JP2007131782A | 2007-05-31 | |||
| JP2008189917A | 2008-08-21 | |||
| JP2008106108A | 2008-05-08 | |||
| JP2008063565A | 2008-03-21 | |||
| JP2008053529A | 2008-03-06 | |||
| JP2008202036A | 2008-09-04 | |||
| JP2007540440A |
Foreign References:
| WO2007125956A1 | 2007-11-08 | |||
| WO2005100445A1 | 2005-10-27 |
Attorney, Agent or Firm:
Atomi International Patent Office
Yasuo Yasutomi
Katsutoshi Moroda
Yasuo Yasutomi
Katsutoshi Moroda