Metal working – Plural diverse manufacturing apparatus including means for... – Common reciprocating support for spaced tools
Patent
1983-04-12
1984-10-02
Saba, William G.
Metal working
Plural diverse manufacturing apparatus including means for...
Common reciprocating support for spaced tools
29576E, 148175, 156612, 156614, 156DIG70, 156DIG99, 357 17, 357 61, H01L 2120, H01L 21285
Patent
active
044739389
ABSTRACT:
An electroluminescent semiconductor device comprising bodies of conductive and resistive crystalline gallium nitride (GaN) which are successively epitaxially deposited on a surface of a heat-treated sapphire substrate, and a body of insulative crystalline gallium nitride epitaxially deposited on the resistive body.
REFERENCES:
patent: 3683240 (1972-08-01), Pankove
patent: 3819974 (1974-06-01), Stevenson et al.
patent: 3922703 (1975-11-01), Pankove
patent: 4144116 (1979-03-01), Jacob et al.
patent: 4268842 (1981-05-01), Jacob et al.
Maruska et al., "Prep. of Mg-Doped GaN Diodes . . . ", Mat. Res. Bull., vol. 7, No. 8, pp. 777-782 (1972).
Akasaki Isamu
Kobayashi Hiroyuki
Ohki Yoshimasa
Toyoda Yukio
Matsushita Electric Industrial Co., Limited
Saba William G.
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