Development of light-sensitive quinone diazide compositions

Gas separation: apparatus – Electric field separation apparatus – Electrode cleaner – apparatus part flusher – discharger – or...

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96 75, 96 86P, 96 35, 96 351, G03C 158, G03C 522, G03C 534, G03C 152

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041417330

ABSTRACT:
Light-sensitive compositions containing a quinone diazide which are useful in positive-working photoresists and positive-working lithographic printing plates are developed with a developing composition comprising methyltriethanol ammonium hydroxide. The developing composition provides the advantage that it is free of metal ions and, accordingly, does not contaminate the surface of the image. It is additionally advantageous in that it provides extended development latitude, increased exposure latitude, improved resist contrast, improved prebake latitude, a low depletion rate and minimal loss of image layer thickness.

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