Plasma enchanced chemical method
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United States of America Patent
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Dec 14, 1999
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app pub date -
Feb 21, 1997
filing date -
Jul 10, 1995
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Abstract
A plasma enhanced chemical processing reactor and method. The reactor includes a plasma chamber including a first gas injection manifold and a source of electromagnetic energy. The plasma chamber is in communication with a process chamber which includes a wafer support and a second gas manifold. The reactor also includes a vacuum system for exhausting the reactor. The method includes the steps of generating a plasma within the plasma chamber, introducing at least one gaseous chemical into the process chamber proximate to the wafer support, applying r.f. gradient to induce diffusion of the plasma to the area proximate the wafer support, and exhausting the reactor in a substantially symmetrical manner.
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