Patent ID: 7169532
Filing Date: 2007-01-30
Classification: G03F,Y10S,Y10T

Abstract:
1. A chemically amplified positive photoresist composition for a tick film that is used for forming a thick-film photoresist layer with a film thickness of 10 to 150 μm on top of a support, comprising the following components: (A) a compound that generates an acid upon irradiation with active light or radiation; (B) a resin tat displays increased alkali solubility under the action of the acid; and (C) an alkali-soluble resin; wherein (wherein, R said component (C) comprises an acrylic resin (c1), and/or a vinyl resin (c2), wherein said vinyl resin (4) is a poly(vinyl low alkyl ether), and comprises a (co)polynier produced by polyrnerizing either a single vinyl low alkyl ether represented by a general formula (8) shown below, or a mixture of two or more of said ethers. (wherein in the general formula (8), R