TY - JOUR AU - Kishimura, Shinji AB - Two new concepts,"masking effect" and "internal CEL", are proposed to design a high resolution quinonediazide-novolak type photoresist. On the basis of these two design concepts, we optimized the composition of the resist, and succeeded in developing a high resolution resist, which is composed of m-cresol/p-cresol/xylenol/formaldehyde novolak resin and 2 ,3 ,4 , 4' -tetrahydroxybenzophenone 1 , 2 -naphtoquinonediaz ide-5 -sulfonate. This resist can resolve as small as 0.6 um lines & spaces with aspect ratio of 2.7 (NA.0.42) and has the gamma value of 2.0. TI - "Masking Effect" And "Internal CEL" New Design Concepts For A Positive Working Photoresist JF - Proceedings of SPIE DO - 10.1117/12.968311 DA - 1988-01-01 UR - https://www.deepdyve.com/lp/spie/masking-effect-and-internal-cel-new-design-concepts-for-a-positive-jgHjYfch4U SP - 134 EP - 141 VL - 92 IS - DP - DeepDyve ER -