H01L 21/34

Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies not provided for in groups {[CPC: H01L21/0405], [CPC: H01L21/0445]} , [CPC: H01L21/06], [CPC: H01L21/16] and [CPC: H01L21/18] with or without impurities, e.g. doping materials