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Free‐standing photoresist films for microlithography

 

作者: J. W. Little,   T. A. Callcott,   E. T. Arakawa,  

 

期刊: Review of Scientific Instruments  (AIP Available online 1980)
卷期: Volume 51, issue 11  

页码: 1581-1583

 

ISSN:0034-6748

 

年代: 1980

 

DOI:10.1063/1.1136106

 

出版商: AIP

 

数据来源: AIP

 

摘要:

Microlithography, using computer‐controlled electron‐beam exposure of radiation‐sensitive polymer films called photoresist, is a technique widely used in industry. However, the resolution of existing systems is severely limited by scattering of electrons from the substrate supporting the resist and within the resist film itself. We have developed several techniques for producing and processing free‐standing films of photoresist which eliminate the solid substrate and thus the electron scattering from it. These films are also thin enough to reduce scattering within the photoresist significantly. We present some special techniques using free‐standing photoresist films which may be utilized to improve the resolution of electron‐lithography systems by minimizing the effects of electron scattering in photoresists.

 

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