JPS54108584A - Manufacture of field effect transistor - Google Patents
Manufacture of field effect transistorInfo
- Publication number
- JPS54108584A JPS54108584A JP1554478A JP1554478A JPS54108584A JP S54108584 A JPS54108584 A JP S54108584A JP 1554478 A JP1554478 A JP 1554478A JP 1554478 A JP1554478 A JP 1554478A JP S54108584 A JPS54108584 A JP S54108584A
- Authority
- JP
- Japan
- Prior art keywords
- film
- region
- source
- layer
- substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Electrodes Of Semiconductors (AREA)
- Junction Field-Effect Transistors (AREA)
Abstract
PURPOSE: To reduce the leakage of gate currents with source DC resistance made small by forming a source-drain region of low resistance while protecting a channel region by an insulator and by insulating the substrate surface between an ohmic electrode provided there and the insulator.
CONSTITUTION: On semi-insulating GaAs substrate 1, N-type GaAs layer 2 is formed by epitaxial growth and onto the gate formation region, Si3N4 film 3 is provided in parallel to the source-drain direction. Next, this is used as a mask to inject N-type impurity ions 4 and after SiO2 protective film 5 is adhered, a heat treatment is carried out to form source region 6' and drain region 6 in layer 2. Then, film 5 is removed by etching leaving film 3 and electrodes 7' and 7 of Au-Ge alloy are adhered onto regions 6' and 6. Next, proton ions are injected into the entire surface to make surface layers 9' and 9 of substrate 1 between electrodes 7' and 7, and film 3 semi-insulated. Then, film 3 is removed and Schottky barrier metal 10 of Al, etc., is adhered onto gate region 3 of layer 2 exposed downward.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1554478A JPS54108584A (en) | 1978-02-13 | 1978-02-13 | Manufacture of field effect transistor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1554478A JPS54108584A (en) | 1978-02-13 | 1978-02-13 | Manufacture of field effect transistor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54108584A true JPS54108584A (en) | 1979-08-25 |
Family
ID=11891723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1554478A Pending JPS54108584A (en) | 1978-02-13 | 1978-02-13 | Manufacture of field effect transistor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54108584A (en) |
-
1978
- 1978-02-13 JP JP1554478A patent/JPS54108584A/en active Pending
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