Fabrication and characterization of MOS transistor tip integrated micro cantilever

Sang H. Lee, Geunbae Lim, Wonkyu Moon

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We fabricate and characterize the metal-oxide-semiconductor (MOS) transistor tip integrated micro cantilever, which is proposed for a future high-density data storage system. The integrated MOS transistor tip as the sensing part has some advantages; it detects the electric signal with the fast speed compared with the previous SPM probes, and it can reduce the required equipments such as the lock-in-amplifier. The MOS transistor tip is fabricated 3-dimensionally, utilizing the lateral diffusion and the anisotropic wet etching with TMAH solution, since the etch rate of {211} plane is much higher than those of {100} or {111} planes. The gate area is formed by self-aligned technique, using crystallographic dependant wet etching. The well-known convex comer compensation pattern is used for the gate length control during the tip fabrication process. The characteristics of the fabricated device are measured and the results show the well-established detection properties.

Original languageEnglish
Title of host publication2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 Technical Proceedings
EditorsM. Laudon, B. Romanowicz
Pages505-508
Number of pages4
StatePublished - 2005
Event2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 - Anaheim, CA, United States
Duration: 8 May 200512 May 2005

Publication series

Name2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 Technical Proceedings

Conference

Conference2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005
Country/TerritoryUnited States
CityAnaheim, CA
Period8/05/0512/05/05

Keywords

  • Convex comer compensation
  • Crystallographic dependant wet etching
  • Future high-density data storage system
  • Metal-oxide-semiconductor (MOS) transistor tip
  • Self-aligned technique

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