Vertical single electron transistor formed by condensation

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United States of America Patent

PATENT NO 9595605
SERIAL NO

15092986

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method for forming a vertical single electron transistor includes forming a heterostructured nanowire having a SiGe region centrally disposed between an upper portion and a lower portion in the nanowire. An oxide is deposited to cover the SiGe region, and a condensation process is performed to convert the SiGe to oxide and condense Ge to form an island between the upper portion and the lower portion of the nanowire. A bottom contact is formed about the lower portion, a first dielectric layer is formed on the bottom contact and a gate structure is formed about the island on the first dielectric layer. A second dielectric layer is formed on the gate structure, and a top contact is formed on the second dielectric layer.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cheng, Kangguo Schenectady, US 3065 29546
Miao, Xin Guilderland, US 355 2221
Xu, Wenyu Albany, US 190 905
Zhang, Chen Guilderland, US 669 2784

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