Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1984-07-09
1985-12-17
Valentine, Donald R.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
20412975, C25F 312
Patent
active
045591164
ABSTRACT:
Semiconductor electrodes whose composition varies with distance from a surface and which varying composition provides different wavelengths of electroluminescence from the different compositions may be spatially and spectrally etched. When the semiconductors are immersed in electrolytic etching solutions, imagewise exposure to electromagnetic radiation will stimulate the etching of the semiconductor when the semiconductor is voltaically connected with an electrode.
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Carpenter Michael K.
Ellis Arthur B.
Litman Mark A.
Minnesota Mining and Manufacturing Company
Sell Donald M.
Smith James A.
Valentine Donald R.
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