Application aspects of a positive tone deep UV resist

Autor: Horst Wengenroth, Horst Röschert, Walter Spiess, Georg Pawlowski
Rok vydání: 1993
Předmět:
Zdroj: Microelectronic Engineering. 21:267-270
ISSN: 0167-9317
DOI: 10.1016/0167-9317(93)90070-l
Popis: Current state of process capabilities and performance items of a recently developed chemically amplified positive tone deep UV (DUV) resist is presented. The material is based on three components: an α, α-bis (arylsulfonyl) diazomethane as phtoacid generator (PAG), an oligomeric N,O-acetal as dissolution inhibitor and a poly(vinylphenol) as matrix resin. Lithography aspects being of general interest to the process engineer such as resolution, linearity, exposure and development latitudes, depth of focus, thermal resistance and use of top antireflective coating (TARC) AZ Aquatar are addressed. Furthermore, progress in delay time stability is discussed.
Databáze: OpenAIRE