Invention Grant
- Patent Title: Acid-strippable silicon-containing antireflective coating
- Patent Title (中): 酸可剥离的含硅抗反射涂层
-
Application No.: US13733182Application Date: 2013-01-03
-
Publication No.: US09348228B2Publication Date: 2016-05-24
- Inventor: Martin Glodde , Wu-Song Huang , Ratnam Sooriyakumaran
- Applicant: GLOBALFOUNDRIES INC.
- Applicant Address: KY Grand Cayman
- Assignee: GLOBALFOUNDRIES INC.
- Current Assignee: GLOBALFOUNDRIES INC.
- Current Assignee Address: KY Grand Cayman
- Agency: Scully, Scott, Murphy & Presser, P.C.
- Main IPC: G03F7/09
- IPC: G03F7/09 ; G03F7/075 ; G02B1/111 ; G02B1/11

Abstract:
A silicon-containing antireflective coating formulation comprising: (i) an aqueous base insoluble organosilicon component having a multiplicity of hydrocarbon groups derivatized with hydroxy groups in the absence of Si—O—C and Si—O—H moieties; (ii) a vinylether component having a multiplicity of vinylether groups; and (iii) a casting solvent. Also disclosed is a method for converting the silicon-containing antireflective coating formulation into a crosslinked silicon-containing antireflective film comprising organosilicon units interconnected by acetal or ketal groups. The method entails (a) coating a substrate with the silicon-containing antireflective coating formulation and (b) heating the coated substrate to a temperature at which crosslinking between the organosilicon silicon component and vinylether component occurs. Further disclosed is a method for patterning an antireflective coating on a substrate using the crosslinked silicon-containing antireflective film in a lithographic patterning process wherein the crosslinked silicon-containing antireflective film is situated between the substrate and a photoresist.
Public/Granted literature
- US20140186774A1 ACID-STRIPPABLE SILICON-CONTAINING ANTIREFLECTIVE COATING Public/Granted day:2014-07-03
Information query
IPC分类: