US PATENT SUBCLASS 148 / 33.4
.~ With contiguous layers of different semiconductive material

Current as of: June, 1999
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148 /   HD   METAL TREATMENT

33  DF  BARRIER LAYER STOCK MATERIAL, P-N TYPE {5}
33.4.~ With contiguous layers of different semiconductive material

DEFINITION

Classification: 148/33.4

(under subclass 33) Stock in which the material in at least two contiguous layers, which are considered the

semiconductors, is of different compositions.