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US 2014/0179879 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.
Claims9
A silicone resin composition comprising:
- a cage octasilsesquioxane having a group represented by formula (1) below,
- an alkenyl group-containing polysiloxane 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, and
- organohydrogenpolysiloxane,
- (where R1 represents a monovalent hydrocarbon group selected from a saturated hydrocarbon group and an aromatic hydrocarbon group;
- R2 represents hydrogen or a monovalent hydrocarbon group selected from a saturated hydrocarbon group and an aromatic 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).
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,
- an alkenyl group-containing polysiloxane 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, and
- organohydrogenpolysiloxane,
- (where R1 represents a monovalent hydrocarbon group selected from a saturated hydrocarbon group and an aromatic hydrocarbon group;
- R2 represents hydrogen or a monovalent hydrocarbon group selected from a saturated hydrocarbon group and an aromatic 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 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,
- an alkenyl group-containing polysiloxane 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, and
- organohydrogenpolysiloxane,
- (where R1 represents a monovalent hydrocarbon group selected from a saturated hydrocarbon group and an aromatic hydrocarbon group;
- R2 represents hydrogen or a monovalent hydrocarbon group selected from a saturated hydrocarbon group and an aromatic 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).
6 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,
- an alkenyl group-containing polysiloxane 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, and
- organohydrogenpolysiloxane,
- (where R1 represents a monovalent hydrocarbon group selected from a saturated hydrocarbon group and an aromatic hydrocarbon group;
- R2 represents hydrogen or a monovalent hydrocarbon group selected from a saturated hydrocarbon group and an aromatic 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 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,
- an alkenyl group-containing polysiloxane 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, and
- organohydrogenpolysiloxane,
- (where R1 represents a monovalent hydrocarbon group selected from a saturated hydrocarbon group and an aromatic hydrocarbon group;
- R2 represents hydrogen or a monovalent hydrocarbon group selected from a saturated hydrocarbon group and an aromatic 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.