	US 12,460,113 B2
	Adhesive composition for dicing tape and dicing tape including the same
Da Ae Kim, Daejeon (KR); Ji Ho Han, Daejeon (KR); Kwang Joo Lee, Daejeon (KR); Eun Yeong Kim, Daejeon (KR); and Mi Jang, Daejeon (KR)
Assigned to LG CHEM, LTD., Seoul (KR)
Appl. No. 17/599,208
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Aug. 14, 2020, PCT No. PCT/KR2020/010901 § 371(c)(1), (2) Date Sep. 28, 2021, PCT Pub. No. WO2021/060707, PCT Pub. Date Apr. 1, 2021.
Claims priority of application No. 10-2019-0119120 (KR), filed on Sep. 26, 2019; and application No. 10-2020-0096316 (KR), filed on Jul. 31, 2020.
Prior Publication US 2022/0154053 A1, May 19, 2022
Int. Cl. C09J 133/08 (2006.01); C09J 7/24 (2018.01); C09J 7/38 (2018.01); H01L 21/683 (2006.01)

CPC C09J 133/08 (2013.01) [C09J 7/241 (2018.01); C09J 7/385 (2018.01); C09J 2203/326 (2013.01); C09J 2423/006 (2013.01); C09J 2433/00 (2013.01); H01L 21/6836 (2013.01); Y10T 428/2891 (2015.01)]

20 Claims

1. An adhesive composition for a dicing tape comprising: an adhesive binder; a reducing agent; and a photoinitiator,

wherein the adhesive binder comprises a (meth)acrylate-based resin,

wherein the reducing agent is comprised in an amount of 3.5 parts by weight to 15.0 parts by weight based on 100 parts by weight of the adhesive binder, and improves pickup degradation of a semiconductor chip by inducing reduction of a peroxyl radical, and

wherein the reducing agent is one selected from the group consisting of triphenylphosphine, trioctylphosphine, 3,9-bis(octadecyloxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5,5]undecane (BOTDBU), ethylene sulfite (ETS), dimethylamine-borane (Me₂NH*BH₃), and combinations thereof.