Invention Grant
- Patent Title: Copper filling of through silicon vias
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Application No.: US13699910Application Date: 2011-05-24
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Publication No.: US10221496B2Publication Date: 2019-03-05
- Inventor: Thomas B. Richardson , Wenbo Shao , Xuan Lin , Cai Wang , Vincent Paneccasio, Jr. , Joseph A. Abys , Yun Zhang , Richard Hurtubise , Chen Wang
- Applicant: Thomas B. Richardson , Wenbo Shao , Xuan Lin , Cai Wang , Vincent Paneccasio, Jr. , Joseph A. Abys , Yun Zhang , Richard Hurtubise , Chen Wang
- Applicant Address: US CT Waterbury
- Assignee: MacDermid Enthone Inc.
- Current Assignee: MacDermid Enthone Inc.
- Current Assignee Address: US CT Waterbury
- Agency: Carmody Torrance Sandak & Hennessey LLP
- International Application: PCT/US2011/037777 WO 20110524
- International Announcement: WO2011/149965 WO 20111201
- Main IPC: C25D5/02
- IPC: C25D5/02 ; C25D3/38 ; H01L21/288 ; H01L21/768 ; C25D7/12

Abstract:
A method for metallizing a through silicon via feature in a semiconductor integrated circuit device substrate. The method comprises immersing the semiconductor integrated circuit device substrate into an electrolytic copper deposition composition, wherein the through silicon via feature has an entry dimension between 1 micrometers and 100 micrometers, a depth dimension between 20 micrometers and 750 micrometers, and an aspect ratio greater than about 2:1; and supplying electrical current to the electrolytic deposition composition to deposit copper metal onto the bottom and sidewall for bottom-up filling to thereby yield a copper filled via feature. The deposition composition comprises (a) a source of copper ions; (b) an acid selected from among an inorganic acid, organic sulfonic acid, and mixtures thereof; (c) an organic disulfide compound; (d) a compound selected from the group consisting of a reaction product of benzyl chloride and hydroxyethyl polyethyleneimine, a quaternized dipyridyl compound, and a combination thereof; and (d) chloride ions.
Public/Granted literature
- US20190003068A9 COPPER FILLING OF THROUGH SILICON VIAS Public/Granted day:2019-01-03
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