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Alkaline-Developable, Chemically Amplified, Negative-Type Photosensitive Polyimide Based on Polyhydroxyimide, a Crosslinker, and a Photoacid Generator

机译:基于聚羟基酰亚胺,交联剂和光致产酸剂的碱性可显影化学放大负型光敏聚酰亚胺

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摘要

A chemically amplified photosensitive polyimide based on polyhydroxyimide (PHI) from cyclobutane-tetracarboxylic dianhydride and 4,4'-(hexafluoroisopropylidene)bis(2-aminophenol), 4,4'-methylenebis[2,6-bis (hydroxymethyl)phenol] (MBHP) as a crosslinker, and (5-propylsulfonyloxyimino-5H-thiophen-2-ylidene)-(2-methyl- phenyl)acetonitrile (PTMA) as a photoacid generator was developed to obtain the abilities of low temperature patterning, low dielectric constant, and high sensitivity. The chemically amplified photosensitive polyimide, consisting of PHI (70 wt%), MBHP (20 wt%), and PTMA (10 wt%), showed a high sensitivity (DO.5) of 5.9 mJ/cm(2) and a good contrast (gamma(0.5)) of 3.9, respectively, producing a clear negative-tone line-and-space pattern with 6-mu m resolution. Furthermore, the chemically amplified photosensitive polyimide showed a high transparency in the i-line region and a low dielectric constant of 2.54.
机译:基于环丁烷-四羧酸二酐和4,4'-(六氟异亚丙基)双(2-氨基苯酚),4,4'-亚甲基双[2,6-双(羟甲基)苯酚]的聚羟基酰亚胺(PHI)的化学放大光敏聚酰亚胺开发了MBHP)作为交联剂,并开发了(5-丙基磺酰氧基亚氨基-5H-噻吩-2-亚基)-(2-甲基-苯基)乙腈(PTMA)作为光酸产生剂,以获得低温构图,低介电常数的能力,并且灵敏度高。化学放大的光敏聚酰亚胺由PHI(70 wt%),MBHP(20 wt%)和PTMA(10 wt%)组成,显示出5.9 mJ / cm(2)的高灵敏度(DO.5)和良好的感光度。对比度(gamma(0.5))分别为3.9,可产生具有6微米分辨率的清晰的负线条和空间图案。此外,化学放大的光敏聚酰亚胺在i-线区域中显示出高透明性并且具有2.54的低介电常数。

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