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US 2014/0175494 A1Published application
Silicone resin composition, encapsulating layer, reflector, and optical semiconductor device
AssigneeNitto Denko Corporation
InventorsHaruka FUJII, Hiroyuki KATAYAMA
Life of this patent
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Abstract
A silicone resin composition includes a cage octasilsesquioxane; a polysiloxane containing alkenyl groups at both ends containing an alkenyl group having the number of moles smaller than the number of moles of the hydrosilyl group of the cage octasilsesquioxane; a hydrosilylation catalyst; a hydroxyl group-containing polysiloxane, organohydrogenpolysiloxane, or a polysiloxane containing alkenyl groups at side chain.
Claims10
A silicone resin composition comprising:
- a cage octasilsesquioxane having a group represented by formula (1) below,
- a straight chain polysiloxane containing alkenyl groups at both ends which contains, at both of its molecular ends, an alkenyl group having the number of moles smaller than the number of moles of the hydrosilyl group of the cage octasilsesquioxane,
- a hydrosilylation catalyst, and
- a polysiloxane containing alkenyl groups at side chain which contains two or more alkenyl groups at its side chain,
- (where R1 represents a monovalent hydrocarbon group;
- R2 represents hydrogen or a monovalent hydrocarbon group;
- the molar ratio of monovalent hydrocarbon group:hydrogen in R2 in the cage octasilsesquioxane as a whole is, as an average value, in a range of 6.5:1.5 to 5.5:2.5).
4 more elements
An encapsulating layer used for encapsulating an optical semiconductor element,
- wherein the encapsulating layer is formed from a silicone resin composition, and the silicone resin composition comprises
- a cage octasilsesquioxane having a group represented by formula (1) below,
- a straight chain polysiloxane containing alkenyl groups at both ends which contains, at both of its molecular ends, an alkenyl group having the number of moles smaller than the number of moles of the hydrosilyl group of the cage octasilsesquioxane,
- a hydrosilylation catalyst, and
- a polysiloxane containing alkenyl groups at side chain which contains two or more alkenyl groups at its side chain,
- (where R1 represents a monovalent hydrocarbon group;
- R2 represents hydrogen or a monovalent hydrocarbon group;
- and the molar ratio of monovalent hydrocarbon group:hydrogen in R2 in the cage octasilsesquioxane as a whole is, as an average value, in a range of 6.5:1.5 to 5.5:2.5).
5 more elements
An optical semiconductor device comprising an optical semiconductor element and an encapsulating layer that encapsulates the optical semiconductor element,
- wherein the encapsulating layer is formed from a silicone resin composition, and the silicone resin composition comprises
- a cage octasilsesquioxane having a group represented by formula (1) below,
- a straight chain polysiloxane containing alkenyl groups at both ends which contains, at both of its molecular ends, an alkenyl group having the number of moles smaller than the number of moles of the hydrosilyl group of the cage octasilsesquioxane,
- a hydrosilylation catalyst, and
- a polysiloxane containing alkenyl groups at side chain which contains two or more alkenyl groups at its side chain,
- (where R1 represents a monovalent hydrocarbon group;
- R2 represents hydrogen or a monovalent hydrocarbon group;
- and the molar ratio of monovalent hydrocarbon group:hydrogen in R2 in the cage octasilsesquioxane as a whole is, as an average value, in a range of 6.5:1.5 to 5.5:2.5).
5 more elements
A reflector used for reflecting light emitted from an optical semiconductor element,
- wherein the reflector is formed from a light reflective composition containing a silicone resin composition and a light reflective component, and
- the silicone resin composition comprises
- a cage octasilsesquioxane having a group represented by formula (1) below,
- a straight chain polysiloxane containing alkenyl groups at both ends which contains, at both of its molecular ends, an alkenyl group having the number of moles smaller than the number of moles of the hydrosilyl group of the cage octasilsesquioxane,
- a hydrosilylation catalyst, and
- a polysiloxane containing alkenyl groups at side chain which contains two or more alkenyl groups at its side chain,
- (where R1 represents a monovalent hydrocarbon group;
- R2 represents hydrogen or a monovalent hydrocarbon group;
- and the molar ratio of monovalent hydrocarbon group:hydrogen in R2 in the cage octasilsesquioxane as a whole is, as an average value, in a range of 6.5:1.5 to 5.5:2.5).
6 more elements
An optical semiconductor device comprising an optical semiconductor element and a reflector that reflects light emitted from the optical semiconductor element,
- wherein the reflector is formed from a light reflective composition containing a silicone resin composition and a light reflective component, and
- the silicone resin composition comprises
- a cage octasilsesquioxane having a group represented by formula (1) below,
- a straight chain polysiloxane containing alkenyl groups at both ends which contains, at both of its molecular ends, an alkenyl group having the number of moles smaller than the number of moles of the hydrosilyl group of the cage octasilsesquioxane,
- a hydrosilylation catalyst, and
- a polysiloxane containing alkenyl groups at side chain which contains two or more alkenyl groups at its side chain,
- (where R1 represents a monovalent hydrocarbon group;
- R2 represents hydrogen or a monovalent hydrocarbon group;
- and the molar ratio of monovalent hydrocarbon group:hydrogen in R2 in the cage octasilsesquioxane as a whole is, as an average value, in a range of 6.5:1.5 to 5.5:2.5).
6 more elements
Dependencies are inferred from the claim text.