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US5981403A Layered silicon nitride deposition process 失效
分层氮化硅沉积工艺

Layered silicon nitride deposition process
摘要:
A semiconductor device process for forming a multilayered nitride structure. The nitride is used as either isolation or as part of a dielectric structure. The deposition rate for the nitride is varied to form a multilayered structure with stress accommodation at the interface between sub-layers in the multilayer structure. In addition, the sub-layered structure reduces pin-holes and microcracks in the nitride film and improves the overall uniformity in thickness of the final nitride film.
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