Fluorine-containing sulfonic acid salts, photo-acid generator and resist composition and pattern formation method utilizing same
US-8993212-B2 · Mar 31, 2015 · US
US10234759B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10234759-B2 |
| Application number | US-201514751669-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 26, 2015 |
| Priority date | Dec 27, 2012 |
| Publication date | Mar 19, 2019 |
| Grant date | Mar 19, 2019 |
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Provided is an actinic-ray- or radiation-sensitive resin composition including a resin (A) and any of compounds (B) of general formula (I) below. (In general formula (I), Rf represents a fluorine atom or a monovalent organic group containing at least one fluorine atom; R 1 represents a hydrogen atom or a monovalent substituent containing no fluorine atom; X 1 represents a monovalent organic group having at least two carbon atoms, or a methyl group in which a substituent other than a fluorine atom is optionally introduced, provided that X 1 may be bonded to R 1 to thereby form a ring; and Z represents a moiety that when exposed to actinic rays or radiation, is converted to a sulfonic acid group, an imidic acid group or a methide acid group).
Opening claim text (preview).
The invention claimed is: 1. An actinic-ray- or radiation-sensitive resin composition comprising a resin (A) and any of compounds (B) of general formula (I) below, in which Rf represents a fluorine atom R 1 represents a hydrogen atom; X 1 represents an organic group of general formula (Ia) below, provided that X 1 may be bonded to R 1 to thereby form a ring; and Z represents a moiety which, when exposed to actinic rays or radiation, is converted to a sulfonic acid group, an imidic acid group or a methide acid group, -L 11 -X 11 (Ia) in which L 11 represents a bivalent connecting group having at least one —CH 2 — group and only one —C(═O)— group, provided that the connecting group represented by L 11 contains no fluorine atom, and X 11 represents an alicyclic group, or a heterocyclic group, provided that the any of organic groups of general formula (Ia) as a whole contains at least five carbon atoms. 2. The actinic-ray- or radiation-sensitive resin composition according to claim 1 , wherein Z in the general formula (I) represents the moiety which, when exposed to actinic rays or radiation, is converted to the sulfonic acid. 3. The actinic-ray- or radiation-sensitive resin composition according to claim 1 , wherein X 11 in the general formula (Ia) is a polycyclic alicyclic group. 4. The actinic-ray- or radiation-sensitive resin composition according to claim 1 , wherein L 11 in the general formula (Ia) is a bivalent connecting group comprising —CH 2 —, —CO— and —O— groups. 5. The actinic-ray- or radiation-sensitive resin composition according to claim 1 , wherein L 11 in the general formula (Ia) is a bivalent connecting group comprising at least two —CH 2 — groups. 6. The actinic-ray- or radiation-sensitive resin composition according to claim 1 , wherein L 11 in the general formula (Ia) is a bivalent connecting group selected from —C(═O)—O—CH 2 —, —CH 2 —O—C(═O)—, and —C(═O)—O—CH 2 —CH 2 —CH 2 —CH(CH 3 )— groups. 7. An actinic-ray- or radiation-sensitive resin composition comprising a resin (A) and any of compounds (B) of general formula (I) below, in which Rf represents a fluorine atom; R 1 represents a hydrogen atom; X 1 represents an organic group of general formula (Ia) below, provided that X 1 may be bonded to R 1 to thereby form a ring; Z represents a moiety which, when exposed to actinic rays or radiation, is converted to a sulfonic acid group, an imidic acid group or a methide acid group, -L 11 -X 11 (Ia) in which L 11 represents a bivalent connecting group having at least one —CH 2 — group and only one of either —C(═O)—O— or —O—C(═O)— group, provided that the connecting group represented by L 11 contains no fluorine atom, and X 11 represents an alicyclic group, or a heterocyclic group, provided that the any of organic groups of general formula (Ia) as a whole contains at least five carbon atoms. 8. The actinic-ray- or radiation-sensitive resin composition according to claim 7 , wherein Z in the general formula (I) represents the moiety which, when exposed to actinic rays or radiation, is converted to the sulfonic acid. 9. The actinic-ray- or radiation-sensitive resin composition according to claim 7 , wherein X 11 in the general formula (Ia) is a polycyclic alicyclic group. 10. The actinic-ray- or radiation-sensitive resin composition according to claim 7 , wherein L 11 in the general formula (Ia) is a bivalent connecting group comprising at least two —CH 2 — groups. 11. The actinic-ray- or radiation-sensitive resin composition according to claim 7 , wherein L 11 in the general formula (Ia) is a bivalent connecting group selected from —C(═O)—O—CH 2 —, —CH 2 —O—C(═O)—, and —C(═O)—O—CH 2 —CH 2 —CH 2 —CH(CH 3 )— groups. 12. An actinic-ray- or radiation-sensitive resin composition comprising a resin (A) and any of compounds (B) of general formula (I) below, in which Rf represents a fluorine atom; R 1 represents —C(CH 3 ) 3 , —CN, —C(═O)CH 3 , or —CH 3 group; X 1 represents an organic group of general formula (Ia) below, provided that X 1 may be bonded to R 1 to thereby form a ring; Z represents a moiety which, when exposed to actinic rays or radiation, is converted to a sulfonic acid group, an imidic acid group or a methide acid group, -L 11 -X 11 (Ia) in which L 11 represents a bivalent connecting group having at least one —CH 2 — group, provided that the connecting group represented by L 11 contains no fluorine atom, and X 11 represents an alicyclic group, or a heterocyclic group, provided that the any of organic groups of general formula (Ia) as a whole contains at least four carbon atoms.
the macromolecular compound having an alicyclic moiety in a side chain · CPC title
containing halogen atoms, or nitro or nitroso groups bound to the carbon skeleton · CPC title
of an acyclic saturated carbon skeleton · CPC title
Exposure; Apparatus therefor (photographic printing apparatus for making copies G03B27/00) · CPC title
with organic non-macromolecular light-sensitive compounds not otherwise provided for, e.g. dissolution inhibitors · CPC title
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