Article ID Journal Published Year Pages File Type
1662290 Surface and Coatings Technology 2007 5 Pages PDF
Abstract

Situations where it is desirable to control a chemical vapor deposition reactor to a spatially non-uniform film profile are presented in the context of a planetary reactor system for SiC CVD and a highly controllable reactor system designed for single-wafer combinatorial CVD processing. We focus on reactor designs and operation methods that enable deposition of spatially graded films for combinatorial studies, and on identifying and driving planetary CVD systems to a specific spatially non-uniform deposition rate profile. Known as a “Nearest Uniformity Producing Profile” (NUPP), these target profiles lead to a natural criterion for film uniformity control under wafer rotation.

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Physical Sciences and Engineering Materials Science Nanotechnology
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