US 12,441,833 B2
Composition for curable resin, cured product of said composition, production method for said composition and said cured product, and semiconductor device
Yoshinori Nishitani, Tokyo (JP); Tatsuki Sato, Tokyo (JP); and Masaki Minami, Tokyo (JP)
Assigned to ENEOS Corporation, Tokyo (JP)
Appl. No. 17/311,659
Filed by ENEOS Corporation, Tokyo (JP)
PCT Filed Dec. 10, 2019, PCT No. PCT/JP2019/048200
§ 371(c)(1), (2) Date Jun. 7, 2021,
PCT Pub. No. WO2020/122045, PCT Pub. Date Jun. 18, 2020.
Claims priority of application No. 2018-231150 (JP), filed on Dec. 10, 2018.
Prior Publication US 2022/0106437 A1, Apr. 7, 2022
Int. Cl. C08G 59/62 (2006.01); C08J 5/24 (2006.01); C08K 3/36 (2006.01); C08K 5/357 (2006.01); C08L 63/00 (2006.01); C08L 79/04 (2006.01); H01L 23/29 (2006.01); H01L 23/31 (2006.01)
CPC C08G 59/621 (2013.01) [C08K 3/36 (2013.01); H01L 23/293 (2013.01); H01L 23/295 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A curable resin composition comprising:
(A) an asymmetric benzoxazine compound represented by a structure of formula (1),
(B) an epoxy compound, and
(C) a phenol-based curing agent,
wherein
a number of epoxy groups in the epoxy compound (B), a number of benzoxazine rings in the benzoxazine compound (A), and a number of hydroxyl groups in the phenol-based curing agent (C) satisfy the following formula (2),
a ratio of the number of benzoxazine rings in the benzoxazine compound (A) to the number of hydroxyl groups in the phenol-based curing agent (C) is 1.1 to 7.6,
formula (1) is

OG Complex Work Unit Chemistry
wherein in the formula (1), each R independently represents hydrogen, a linear alkyl group having 1 to 12 carbon atoms, a cyclic alkyl group having 3 to 8 carbon atoms, or an aryl group having 6 to 14 carbon atoms, where the aryl group optionally has halogen or a linear alkyl group having 1 to 12 carbon atoms, as a substituent; each R may be independently bound to any position of the benzoxazine ring; and each benzoxazine ring may be independently bound to any position of the benzene ring, and
formula (2) is
Number of epoxy groups/(Number of benzoxazine rings+Number of hydroxyl groups)=0.5 to 1.8  (2).