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Silicon on insulator self-aligned transistors

Patent ·
OSTI ID:1174590

A method for fabricating thin-film single-crystal silicon-on-insulator (SOI) self-aligned transistors. Standard processing of silicon substrates is used to fabricate the transistors. Physical spaces, between the source and gate, and the drain and gate, introduced by etching the polysilicon gate material, are used to provide connecting implants (bridges) which allow the transistor to perform normally. After completion of the silicon substrate processing, the silicon wafer is bonded to an insulator (glass) substrate, and the silicon substrate is removed leaving the transistors on the insulator (glass) substrate. Transistors fabricated by this method may be utilized, for example, in flat panel displays, etc.

Research Organization:
The Regents of the University of California, Oakland, CA (United States) ; Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
W-7405-ENG-48
Assignee:
The Regents of the University of California (Oakland, CA)
Patent Number(s):
6,649,977
Application Number:
08/526,339
OSTI ID:
1174590
Country of Publication:
United States
Language:
English

References (3)

Ellipsometric Study of the Etch‐Stop Mechanism in Heavily Doped Silicon journal January 1985
Vertically structured silicon membrane by electrochemical etching journal April 1990
Study of electrochemical etch-stop for high-precision thickness control of silicon membranes journal April 1989

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