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Class Information
Number: 257/E21.071
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 selenium (se) or tellurium (te) (epo) > Preliminary treatment of se or te, its application to substrate, or the subsequent treatment of combination (epo) > Application of se or te to substrate or foundation plate (epo)
Description: This subclass is indented under subclass E21.07. This subclass is substantially the same in scope as ECLA classification H01L21/10B.










Patents under this class:

Patent Number Title Of Patent Date Issued
8187914 Methods of forming a phase change memory device May. 29, 2012
8138009 Method of fabricating thin film solar cell and apparatus for fabricating thin film solar cell Mar. 20, 2012
7923342 Nonvolatile memory element and production method thereof and storage memory arrangement Apr. 12, 2011
7803654 Variable resistance non-volatile memory cells and methods of fabricating same Sep. 28, 2010
7687310 Method for manufacturing phase change memory device which can stably form an interface between a lower electrode and a phase change layer Mar. 30, 2010
7674672 Fabricating process for substrate with embedded passive component Mar. 9, 2010
3935582 Selenium rectifier Jan. 27, 1976











 
 
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