ONIUM SALT, CHEMICALLY AMPLIFIED RESIST COMPOSITION, AND PATTERNING PROCESS
申请人:Shin-Etsu Chemical Co., Ltd.
公开号:US20200223796A1
公开(公告)日:2020-07-16
A novel onium salt of formula (1) and a chemically amplified resist composition comprising the same as a PAG are provided. When processed by photolithography using KrF or ArF excimer laser, EB or EUV, the resist composition has a high sensitivity and reduced acid diffusion and is improved in exposure latitude, MEF, and LWR.
NEAR-INFRARED ABSORBING DYE, NEAR-INFRARED ABSORPTIVE FILM-FORMING COMPOSITION, AND NEAR-INFRARED ABSORPTIVE FILM
申请人:OHASHI Masaki
公开号:US20120119171A1
公开(公告)日:2012-05-17
A near-infrared absorbing dye has an anion of formula (1) wherein A
1
is H or CF
3
, R
0
is OH or —OC(═O)—R′, and R′ is a monovalent hydrocarbon group. The dye has excellent solvent solubility as well as good optical properties and heat resistance, offering the advantages of easy coating and effective working during film formation. The dye free of heavy metal in its structure is advantageously used in the process of fabricating semiconductor devices.
RESIST COMPOSITION, PATTERNING PROCESS, AND BARIUM, CESIUM AND CERIUM SALTS
申请人:SHIN-ETSU CHEMICAL CO., LTD.
公开号:US20170115566A1
公开(公告)日:2017-04-27
A resist composition comprising a base resin comprising acid labile group-containing recurring units and preferably acid generator-containing recurring units, and a sodium, magnesium, potassium, calcium, rubidium, strontium, yttrium, cesium, barium or cerium salt of α-fluorinated sulfonic acid bonded to an alkyl, alkenyl, alkynyl or aryl group exhibits a high resolution and sensitivity and forms a pattern of satisfactory profile with minimal LWR after exposure and development.