Fabrication and characterization of modulation doped field effect transistors for quantum waveguide structures Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/08612s32p

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Split and normal gate A1GaAs /GaAs MODFETs were fabricated along with the ohmic test structures and the Hall bar geometries. The DC characteristics of normal gate transistors were evaluated at room temperature and at 77K and the threshold voltages were extracted from the measurements and compared to the theoretical results. The performance of normal gate transistors was reasonable. The sheet carrier density and the mobility extracted from Hall measurements using the Hall bar geometry showed increase of carrier density with increasing gate voltage and an increase of mobility with increasing carrier density. The contact resistance obtained from the ohmic test structure was high and not uniform within the sample.
Resource Type
Date Available
Date Copyright
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Committee Member
Academic Affiliation
Non-Academic Affiliation
Subject
Rights Statement
Peer Reviewed
Language
Digitization Specifications
  • File scanned at 300 ppi (Monochrome) using ScandAll PRO 1.8.1 on a Fi-6770A in PDF format. CVista PdfCompressor 5.0 was used for pdf compression and textual OCR.
Replaces
Additional Information
  • description.provenance : Submitted by Kaylee Patterson (kdpscanner@gmail.com) on 2013-04-11T20:17:53Z No. of bitstreams: 1 YindeepolWipawan1991.pdf: 1201457 bytes, checksum: 6be5b9aa811128f72f899751d342d6e9 (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2013-04-12T15:57:42Z (GMT) No. of bitstreams: 1 YindeepolWipawan1991.pdf: 1201457 bytes, checksum: 6be5b9aa811128f72f899751d342d6e9 (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2013-04-11T20:52:16Z (GMT) No. of bitstreams: 1 YindeepolWipawan1991.pdf: 1201457 bytes, checksum: 6be5b9aa811128f72f899751d342d6e9 (MD5)
  • description.provenance : Made available in DSpace on 2013-04-12T15:57:42Z (GMT). No. of bitstreams: 1 YindeepolWipawan1991.pdf: 1201457 bytes, checksum: 6be5b9aa811128f72f899751d342d6e9 (MD5) Previous issue date: 1990-07-12

Relationships

Parents:

This work has no parents.

Last modified

Downloadable Content

Download PDF

Items