Semiconductor device manufacturing: process – Coating of substrate containing semiconductor region or of... – Insulative material deposited upon semiconductive substrate
Patent
1997-10-22
2000-10-03
Nelms, David
Semiconductor device manufacturing: process
Coating of substrate containing semiconductor region or of...
Insulative material deposited upon semiconductive substrate
438775, 438792, 438680, H01L 2131
Patent
active
061272876
ABSTRACT:
A method for use in forming a memory cell dielectric includes providing a substrate surface of a memory cell including a silicon based electrode surface. Silicon is predeposited on the electrode surface followed by the deposition of a silicon nitride layer. An incubation time for the start of silicon nitride nucleation at the electrode surface is decreased relative to the incubation time for the start of silicon nitride nucleation when silicon nitride is deposited without predeposition of silicon on the electrode surface. Further, the substrate surface may include one or more component surfaces and when at least a monolayer of silicon is predeposited thereon silicon nitride nucleation at the substrate surface is performed at a substantially equivalent rate independent of the different component surfaces. Alternatively to the predeposition of silicon, the electrode surface may be nitridated prior to deposition of the silicon nitride layer to promote nucleation thereof at an interface between the electrode surface and the silicon nitride layer.
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Fazan Pierre
Hurley Kelly T.
Li Li
Wu Zhiqiang
Berry Renee R.
Micro)n Technology, Inc.
Nelms David
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