Patent classifications
H
ELECTRICITY
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H10
SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
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H10D
INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
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12/00
Bipolar devices controlled by the field effect, e.g. insulated-gate bipolar transistors [IGBT]
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H10D12/035
Etching a recess in the emitter region
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