Self-aligned process for fabricating power MOSFET with spacer-shaped terraced gate

作者: Jun Zeng

DOI:

关键词: Time-dependent gate oxide breakdownPower MOSFETGate oxideOxideOptoelectronicsMaterials scienceSubstrate (electronics)Layer (electronics)Metal gatePolysilicon depletion effect

摘要: A process forms a power semiconductor device with reduced input capacitance and improved switching speed. substrate an epitaxial has oxide layer patterned to form narrow terraced gate. gate is formed on the upper surface of layer. polysilicon deposited region The anisotropically etched spacers abutting each two side surfaces region. p-type dopant implanted through driven in P-well regions source mask n-type spacers. It N+ regions.

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