US PATENT SUBCLASS 428 / 450
.~.~ Next to metal


Current as of: June, 1999
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428 /   HD   STOCK MATERIAL OR MISCELLANEOUS ARTICLES

411.1  DF  COMPOSITE (NONSTRUCTURAL LAMINATE) {25}
446  DF  .~ Of silicon containing (not as silicon alloy) {6}
450.~.~ Next to metal


DEFINITION

Classification: 428/450

(under subclass 446) Product in which a layer, contiguous with the silicon-containing layer, contains metal*.

SEE OR SEARCH CLASS

148, Metal Treatment,

33+, for electrically semiconductive stock under the Class 148 definition which is essentially homogeneous and has at least two contiguous layers differing in the number of unbound electrons and/or differing in energy gap levels, which exhibit a junction between the layers.

257, Active Solid-State Devices (e.g., Transistors, Solid-State Diodes), appropriate subclasses for such devices, wherein the solid-state material is typically a semiconductor.

438, Semiconductor Device Manufacturing: Process, particularly

570+, for methods of making a Schottky contact to a semiconductor and subclasses 597+ for methods of making an ohmic contact to a semiconductor.