TY - JOUR
AU - Ueda, Mitsuru
AB - A new negative working photosensitive polyimide, based on hyperbranched poly(ether imide) (1), 4,4′-methylenebis[2,6-bis(hydroxymethyl)]phenol (2) as a cross-linker, and a photoacid generator diphenyliodonium 9,10-dimethoxyanthracene-2-sulfonate (3) has been developed. 1 was prepared by polycondensation of N-[3,5-di-(tert-butyldimethylsilyloxy)phenyl]-4-fluorophthalimide (4), followed by deprotection of tert-butyldimethylsilyl group with KF-HBr. The photosensitive polyimide containing 1 (70 wt%), 2 (20 wt%) and 3 (10 wt%) gave a clear negative pattern when it was exposed to 365 nm light and postbaked at 120 °C, followed by developing with a 2.38 wt% aqueous tetramethylammonium hydroxide (TMAH) solution at room temperature.
TI - New Negative-Type Photosensitive Polyimide Based on Hyperbranched Poly(ether imide), a Cross-Linker, and a Photoacid Generator
JO - Chemistry Letters
DO - 10.1246/cl.2001.762
DA - 2003-02-28
UR - https://www.deepdyve.com/lp/oxford-university-press/new-negative-type-photosensitive-polyimide-based-on-hyperbranched-poly-unWmnKrruv
SP - 762
EP - 763
VL - 30
IS - 8
DP - DeepDyve
ER -