Accession Number : ADA265286


Title :   Resist Materials Design: Base-Catalyzed Chemical Amplification


Descriptive Note : Technical rept.,


Corporate Author : CORNELL UNIV ITHACA NY DEPT OF CHEMISTRY


Personal Author(s) : Willson, C G ; Cameron, J F ; MacDonald, S A ; Niesert, C P ; Frechet, J M


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a265286.pdf


Report Date : 12 May 1993


Pagination or Media Count : 15


Abstract : The search for advanced resists that can provide the high density of circuits and high throughput required for the new generations of microelectronic devices requires that highly stable chemically amplified materials be developed. In view of the high susceptibility of resists based on photoacid generation to environmental contamination, resulting in lessened performance, a program aiming at the development of chemically amplified resists utilizing photobase generation has been undertaken. In a first approach, the photogenerated amines we developed in the first stage of this project were used as catalysts for the decarboxylation of totally new resist systems containing active carboxylic acid pendant groups. The resists materials could be developed to afford negative tone images through wet development in aqueous base, or positive tone images through dry development using a gas-phase silylation reaction followed by oxygen plasma etching. The first patterning experiments carried out with two new resists utilizing photogenerated base have confirmed the validity of the approach.


Descriptors :   *MATERIALS , *AMINES , *MICROELECTRONICS , DENSITY , POLYMERS , PHASE , CHEMICAL REACTIONS , THROUGHPUT , CIRCUITS , BASES(CHEMISTRY) , ACIDS , CARBOXYLIC ACIDS , PLASMA DEVICES , GENERATORS , CONTAMINATION , AMPLIFICATION , INERT MATERIALS , CATALYSTS , HIGH DENSITY , IMAGES , OXYGEN , GASES , ETCHING , CHEMICALS


Subject Categories : Organic Chemistry
      Physical Chemistry
      Radiation and Nuclear Chemistry
      Electrical and Electronic Equipment


Distribution Statement : APPROVED FOR PUBLIC RELEASE