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Advanced CHFET with GaN Insulator

Award Information

Department of Defense
Air Force
Award ID:
Program Year/Program:
1995 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
TLC Precision Wafer Technology, Inc.
1411 West River Road, North Minneapolis, MN 55411-3436
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Woman-Owned: No
Minority-Owned: Yes
HUBZone-Owned: Yes
Phase 1
Fiscal Year: 1995
Title: Advanced CHFET with GaN Insulator
Agency / Branch: DOD / USAF
Contract: N/A
Award Amount: $80,000.00


TLC Precision Wafer Technology, Inc. (TLC) has a very aggressive plan for becoming a leading manufacturer and supplier of epitaxial GaAs and InP-based wafers for military and commercial applications. Key to our strategy is to identify, develop, and be the first at market with those advanced semiconductor materials that offer clear cost and performance advantages for high speed/low power applications. We strongly believe that the complementary GaAs heterostructure field effect transistor (CHFET) technology is such a materials system. Even though recent progress has been made toward LSI circuit levels, materials/device issues must be further optimized to realize the full potential of this technology. The key issues to optimize are (i) threshold voltage control for both the n- and p-channel FETs, (ii) increased p-channel FET transconductance and, (iii) reduced gate leakage of the FETs. Of the three issues stated above, only the gate leakage issue can not be optimized with the current structure. The "insulating" Al(sub0.75)Ga(sub0.25)As layer can not be made any more resistive under the current growth conditions. TLC has detailed plans for modifying the standard CHFET structure by replacing the Al(sub0.75)Ga(sub0.25)As layer with an MBE-grown GaN layer which has intrinsically greater insulating properties.

Principal Investigator:

Timothy T. Childs

Business Contact:

Small Business Information at Submission:

Tlc Precision Wafer
661 5th Avenue North, Ste 160 Minneapolis, MN 55405

Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No