Patent classifications
C07C309/28
PHOTORESIST PATTERN TRIMMING COMPOSITIONS AND PATTERN FORMATION METHODS
Photoresist pattern trimming compositions comprise a polymer, an aromatic sulfonic acid, and an organic-based solvent system, wherein the aromatic sulfonic acid is of general formula (I):
##STR00001##
wherein: Ar.sup.1 represents an aromatic group; R.sup.1 independently represents a halogen atom, hydroxy, substituted or unsubstituted alkyl, substituted or unsubstituted heteroalkyl, substituted or unsubstituted carbocyclic aryl, substituted or unsubstituted heterocyclic aryl, substituted or unsubstituted alkoxy, or a combination thereof, wherein adjacent R.sup.1 groups together optionally form a fused ring structure with Ar.sup.1; a represents an integer of 2 or more; and b represents an integer of 1 or more, provided that a+b is at least 3 and is not greater than the total number of available aromatic carbon atoms of Ar.sup.1, and two or more of R.sup.1 are independently a fluorine atom or a fluoroalkyl group bonded directly to an aromatic ring carbon atom.
Polyanion Copolymers for Use with Conducting Polymers in Solid Electrolytic Capacitors
A capacitor and a method of making a capacitor, is provided with improved reliability performance. The capacitor comprises an anode; a dielectric on the anode; and a cathode on the dielectric wherein the cathode comprises a conductive polymer and a polyanion wherein the polyanion is a copolymer comprising groups A, B and C represented by Formula A.sub.xB.sub.yC.sub.z as described herein.
Polyanion copolymers for use with conducting polymers in solid electrolytic capacitors
A capacitor and a method of making a capacitor, is provided with improved reliability performance. The capacitor comprises an anode; a dielectric on the anode; and a cathode on the dielectric wherein the cathode comprises a conductive polymer and a polyanion wherein the polyanion is a copolymer comprising groups A, B and C represented by Formula A.sub.xB.sub.yC.sub.z as described herein.
Thermal acid generators and photoresist pattern trimming compositions and methods
Provided are ionic thermal acid generators comprising an anion of an aromatic sulfonic acid comprising one or more fluorinated alcohol group and a cation. Also provided are photoresist pattern trimming compositions that include an ionic thermal acid generator, a matrix polymer and a solvent, and methods of trimming a photoresist pattern using the trimming compositions. The thermal acid generators, compositions and methods find particular applicability in the manufacture of semiconductor devices.
Chemical compounds derived from normemantine and use of same in the medical field
The present invention concerns novel chemical compounds corresponding to formulae (I) and (II): (I) (II) which, when marked with fluorine-18, can be used as markers of NMDA receptors for carrying out studies with a scanner.
Chemical compounds derived from normemantine and use of same in the medical field
The present invention concerns novel chemical compounds corresponding to formulae (I) and (II): (I) (II) which, when marked with fluorine-18, can be used as markers of NMDA receptors for carrying out studies with a scanner.
Photoresist pattern trimming compositions and methods
Photoresist pattern trimming compositions are provided. The compositions comprise: a matrix polymer, an aromatic sulfonic acid and a solvent, wherein the aromatic sulfonic acid comprises one or more fluorinated alcohol group. Also provided are methods of trimming a photoresist pattern using the trimming compositions. The compositions and methods find particular applicability in the manufacture of semiconductor devices.
Photoresist pattern trimming compositions and methods
Photoresist pattern trimming compositions are provided. The compositions comprise: a matrix polymer, an aromatic sulfonic acid and a solvent, wherein the aromatic sulfonic acid comprises one or more fluorinated alcohol group. Also provided are methods of trimming a photoresist pattern using the trimming compositions. The compositions and methods find particular applicability in the manufacture of semiconductor devices.
THERMAL ACID GENERATORS AND PHOTORESIST PATTERN TRIMMING COMPOSITIONS AND METHODS
Provided are ionic thermal acid generators comprising an anion of an aromatic sulfonic acid comprising one or more fluorinated alcohol group and a cation. Also provided are photoresist pattern trimming compositions that include an ionic thermal acid generator, a matrix polymer and a solvent, and methods of trimming a photoresist pattern using the trimming compositions. The thermal acid generators, compositions and methods find particular applicability in the manufacture of semiconductor devices.