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Class Information
Number: 257/E47.005
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Bulk negative resistance effect devices, e.g., gunn-effect devices, processes, or apparatus peculiar to manufacture or treatment of such devices, or of parts thereof (epo) > Processes or apparatus peculiar to manufacture or treatment of these devices or of parts thereof (epo)
Description: This subclass is indented under subclass E47.001. This subclass is substantially the same in scope as ECLA classification H01L47/00B.










Patents under this class:

Patent Number Title Of Patent Date Issued
8581225 Variable resistance nonvolatile memory device and method of manufacturing the same Nov. 12, 2013
8574996 Method of manufacturing semiconductor device Nov. 5, 2013
8569730 Carbon-based interface layer for a memory device and methods of forming the same Oct. 29, 2013
8071423 Variable resistance memory devices and methods of forming variable resistance memory devices Dec. 6, 2011
8030128 Method to form high density phase change memory (PCM) top contact every two bits Oct. 4, 2011
7989795 Phase change memory device and method for fabricating the same Aug. 2, 2011
7935564 Self-converging bottom electrode ring May. 3, 2011
7928420 Phase change tip storage cell Apr. 19, 2011
7910910 Phase-change memory cell and method of fabricating the phase-change memory cell Mar. 22, 2011
7893421 Phase change memory device capable of satisfying reset current characteristic and contact resistance characteristic Feb. 22, 2011
7868313 Phase change memory device and method of manufacture Jan. 11, 2011
7795068 Method of making integrated circuit (IC) including at least one storage cell Sep. 14, 2010
7728320 Semiconductor memory device and phase change memory device Jun. 1, 2010
7700430 Phase-changeable memory device and method of manufacturing the same Apr. 20, 2010
7687377 Method of fabricating phase change memory device Mar. 30, 2010
7482621 Rewritable nano-surface organic electrical bistable devices Jan. 27, 2009
7015494 Assemblies displaying differential negative resistance Mar. 21, 2006
5250815 Hot electron injector Gunn device with anode heat sink Oct. 5, 1993
4283734 Process for the manufacture of millimeter wave sources of the module type Aug. 11, 1981











 
 
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