Development of a spatially controllable chemical vapor deposition reactor with combinatorial processing capabilities

Autor: Raymond A. Adomaitis, Gary W. Rubloff, Jae-ouk Choo, Laurent Henn-Lecordier, Yuhong Cai
Rok vydání: 2005
Předmět:
Zdroj: Review of Scientific Instruments. 76:062217
ISSN: 1089-7623
0034-6748
Popis: Most conventional chemical vapor deposition (CVD) systems do not have the spatial actuation and sensing capabilities necessary to control deposition uniformity or to intentionally induce nonuniform deposition patterns for single-wafer combinatorial CVD experiments. In an effort to address these limitations, a novel CVD reactor system has been developed that can explicitly control the spatial profile of gas-phase chemical composition across the wafer surface. This paper discusses the construction of a prototype reactor system featuring a three-zone, segmented showerhead design. Experiments are performed to assess the ability of this reactor system to deposit tungsten films by the hydrogen reduction process; segment-to-segment process recipes are controlled to deposit spatially nonuniform W films. The capabilities of this reactor system for materials discovery research are discussed.
Databáze: OpenAIRE