Adhesive composition, method for manufacturing semiconductor device using adhesive composition, and solid-state imaging element

Patent metadata

Field	Value
Publication number	US-2016369059-A1
Application number	US-201515121668-A
Country	US
Kind code	A1
Filing date	Feb 25, 2015
Priority date	Feb 26, 2014
Publication date	Dec 22, 2016
Grant date	—

Abstract

The present invention pertains to an aerogel having a thermal conductivity of 0.03 W/m·K or less and a compressive elasticity modulus of 2 MPa or less at 25° C. under atmospheric pressure.

First claim

1 . An aerogel having a thermal conductivity of 0.03 W/m·K or less and a compressive elasticity modulus of 2 MPa or less at 25° C. under atmospheric pressure.

2 . The aerogel according to claim 1 , having a recovery rate from deformation of 90% or more.

3 . The aerogel according to claim 1 having a maximum compressive deformation rate of 80% or more.

4 . An aerogel wherein a ratio Q+T:D of a signal area derived from Q and T to a signal area derived from D is from 1:0.01 to 1:0.5 when in a solid 29 Si-NMR spectrum as measured by using DD/MAS method, silicon-containing bonding units of Q, T, and D are defined below:
Q: a silicon-containing bonding unit comprising four oxygen atoms that are bonded to one silicon atom; T: a silicon-containing bonding unit comprising three oxygen atoms and one hydrogen atom or one mono-valent organic group that are bonded to one silicon atom; and D: a silicon-containing bonding unit comprising two oxygen atoms and two hydrogen atoms or two mono-valent organic groups that are bonded to one silicon atom, providing that the organic group is a mono-valent organic group where an atom bonded to a silicon atom is a carbon atom.

5 . An aerogel having a structure represented by the following general formula (1):

wherein in the formula (1), R 1 and R 2 each independently represents an alkyl group or an aryl group and R 3 and R 4 each independently represents an alkylene group.

6 . An aerogel having a ladder type structure provided with a strut and a bridge, the bridge represented by the following general formula (2):

wherein in the formula (2), R 6 and R 7 each independently represents an alkyl group or an aryl group and “b” represents an integer of from 1 to 50.

7 . The aerogel according to claim 6 , having a structure represented by the following general formula (3):

wherein in the formula (3), R 5, R 6 , R 7, and R 8 each independently represents an alkyl group or an aryl group; “a” and “c” each independently represents an integer of from 1 to 3,000; and “b” represents an integer of from 1 to 50.

8 . An aerogel from drying a wet gel, the wet gel being formed from a sol comprising at least one member selected from the group consisting of a polysiloxane compound having a reactive group within a molecule thereof and a hydrolyzed product of said polysiloxane compound.

9 . The aerogel according to claim 1 , from drying a wet gel, the wet gel being formed from a sol comprising at least one member selected from the group consisting of a polysiloxane compound having a reactive group within a molecule thereof and a hydrolyzed product of said polysiloxane compound.

10 . The aerogel according to claim 8 , wherein the reactive group is a hydroxyalkyl group.

11 . The aerogel according to claim 10 , wherein the carbon number of the hydroxyalkyl group is from 1 to 6.

12 . The aerogel according to claim 10 , wherein the polysiloxane compound is represented by the following general formula (4):

wherein in the formula (4), R 9 represents a hydroxyalkyl group; R 10 represents an alkylene group; R 11 and R 12 each independently represents an alkyl group or an aryl group; and “n” represents an integer of from 1 to 50.

13 . The aerogel according to claim 8 , wherein the reactive group is an alkoxy group.

14 . The aerogel according to claim 13 , wherein the carbon number of the alkoxy group is from 1 to 6.

15 . The aerogel according to claim 13 , wherein the polysiloxane compound is a polysiloxane compound represented by the following general formula (5):

wherein in the formula (5), R 14 represents an alkyl group or an alkoxy group; R 15 and R 16 each independently represents an alkoxy group; R 17 and R 18 each independently represents an alkyl group or an aryl group; and “m” represents an integer of from 1 to 50.

16 . The aerogel according to claim 8 , wherein the sol further comprises at least one member selected from the group consisting of a silicone compound having a hydrolyzable functional group within a molecule thereof and a hydrolyzed product of said silicone compound.

17 . The aerogel according to claim 8 , wherein the drying is carried out at a temperature of less than a critical temperature of a solvent to be used in the drying and under atmospheric pressure.

18 . The aerogel according to claim 8 , wherein the drying is supercritical drying.

Assignees

• Hitachi Chemical Co Ltd

Inventors

• Kotake Tomohiko
• Miyatake Masato
• Murai Hikari

Classifications

• C08J9/283

  a discontinuous liquid phase emulsified in a continuous macromolecular phase · CPC title

• C08G77/14 Primary

  containing silicon bound to oxygen-containing groups · CPC title

• C08L83/06 Primary

  containing silicon bound to oxygen-containing groups (C08L83/12 takes precedence) · CPC title

• C08J2383/06

  containing silicon bound to oxygen-containing groups (C08J2383/12 takes precedence) · CPC title

• F16L59/028

  Compositions for or methods of fixing a thermally insulating material · CPC title