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Class Information
Number: 257/E33.042
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Light emitting semiconductor devices having a potential or a surface barrier, processes or apparatus peculiar to the manufacture or treatment of such devices, or of parts thereof > Device characterized by semiconductor body (epo) > Material of active region (epo) > Comprising compound other than group ii-vi, iii-v, and iv compound (epo) > Comprising only group iv-vi or ii-iv-vi compound (epo)
Description: This subclass is indented under subclass E33.037. This subclass is substantially the same in scope as ECLA classification H01L33/00C4F6.

Patents under this class:

Patent Number Title Of Patent Date Issued

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