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Class Information
Number: 257/E21.298
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Processes or apparatus adapted for manufacture or treatment of semiconductor or solid-state devices or of parts thereof (epo) > Manufacture or treatment of semiconductor device (epo) > Device having at least one potential-jump barrier or surface barrier, e.g., pn junction, depletion layer, carrier concentration layer (epo) > Device having semiconductor body comprising group iv elements or group iii-v compounds with or without impurities, e.g., doping materials (epo) > Treatment of semiconductor body using process other than deposition of semiconductor material on a substrate, diffusion or alloying of impurity material, or radiation treatment (epo) > To change their surface-physical characteristics or shape, e.g., etching, polishing, cutting (epo) > Deposition/post-treatment of noninsulating, e.g., conductive - or resistive - layers on insulating layers (epo) > Deposition of superconductive layer (epo)
Description: This subclass is indented under subclass E21.294. This subclass is substantially the same in scope as ECLA classification H01L21/3205Q.
Patents under this class:
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