Transistor employing vertically stacked self-aligned carbon nanotubes

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United States of America Patent

PATENT NO 8895371
SERIAL NO

13605238

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Abstract

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A fin structure including a vertical alternating stack of a first isoelectric point material layer having a first isoelectric point and a second isoelectric material layer having a second isoelectric point less than the first isoelectric point is formed. The first and second isoelectric point material layers become oppositely charged in a solution with a pH between the first and second isoelectric points. Negative electrical charges are imparted onto carbon nanotubes by an anionic surfactant to the solution. The electrostatic attraction causes the carbon nanotubes to be selectively attached to the surfaces of the first isoelectric point material layer. Carbon nanotubes are attached to the first isoelectric point material layer in self-alignment along horizontal lengthwise directions of the fin structure. A transistor can be formed, which employs a plurality of vertically aligned horizontal carbon nanotubes as the channel.

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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
Cao, Qing Yorktown Heights, US 150 561
Guo, Dechao Fishkill, US 268 2423
Han, Shu-Jen Cortlandt Manor, US 225 1507
Lu, Yu Hopewell Junction, US 350 8613
Wong, Keith Kwong Hon Wappingers Falls, US 241 2678

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