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Class Information
Number: 257/E21.068
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)
Description: This subclass is indented under subclass E21.04. This subclass is substantially the same in scope as ECLA classification H01L21/06.










Sub-classes under this class:

Class Number Class Name Patents
257/E21.075 Application of electrode to exposed surface of se or te after se or te has been applied to foundation plate (epo) 12
257/E21.07 Preliminary treatment of se or te, its application to substrate, or the subsequent treatment of combination (epo) 11
257/E21.069 Preparation of substrate or foundation plate for se or te semiconductor (epo) 10
257/E21.076 Treatment of complete device, e.g., by electroforming to form barrier (epo) 4


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8709863 Antimony and germanium complexes useful for CVD/ALD of metal thin films Apr. 29, 2014
8710567 Semiconductor device and manufacturing method thereof Apr. 29, 2014
8685783 Phase change memory cell Apr. 1, 2014
8685785 Planar phase-change memory cell with parallel electrical paths Apr. 1, 2014
8680499 Memory cells Mar. 25, 2014
8673717 Self-aligned process to fabricate a memory cell array with a surrounding-gate access transistor Mar. 18, 2014
8674127 Antimony compounds useful for deposition of antimony-containing materials Mar. 18, 2014
8664033 Absorber layer for a thin film photovoltaic device with a double-graded band gap Mar. 4, 2014
8653616 Photoelectric conversion device Feb. 18, 2014
8629034 Nonvolatile memory element and production method thereof and storage memory arrangement Jan. 14, 2014
8614135 Methods of manufacturing phase change memory devices Dec. 24, 2013
8597978 Method for attaching wide bus memory and serial memory to a processor within a chip scale package footprint Dec. 3, 2013
8592979 Semiconductor device conductive pattern structures and methods of manufacturing the same Nov. 26, 2013
8586401 Gas injection device and solar cell manufacturing method using the same Nov. 19, 2013
8580602 Polycrystalline CDTE thin film semiconductor photovoltaic cell structures for use in solar electricity generation Nov. 12, 2013
8563088 Selenium/group 1B ink and methods of making and using same Oct. 22, 2013
8563353 Method of making a multicomponent film Oct. 22, 2013
8507887 Resistance change memory and method of manufacturing the same Aug. 13, 2013
8481355 Modular system and process for continuous deposition of a thin film layer on a substrate Jul. 9, 2013
8445313 Method for forming a self-aligned bit line for PCRAM and self-aligned etch back process May. 21, 2013
8440991 Phase change memory device having a heater with a temperature dependent resistivity, method of manufacturing the same, and circuit of the same May. 14, 2013
8394659 Nitrogen reactive sputtering of Cu-In-Ga-N for solar cells Mar. 12, 2013
8394667 Methods of forming memory cells, and methods of patterning chalcogenide-containing stacks Mar. 12, 2013
8377741 Self-heating phase change memory cell architecture Feb. 19, 2013
8377791 Nonvolatile memory element and production method thereof and storage memory arrangement Feb. 19, 2013
8372684 Method and system for selenization in fabricating CIGS/CIS solar cells Feb. 12, 2013
8372687 System, method and apparatus for forming multiple layers in a single process chamber Feb. 12, 2013
8361893 Semiconductor device and substrate with chalcogen doped region Jan. 29, 2013
8362527 Solid-state imaging device and fabrication method thereof Jan. 29, 2013
8344343 Composite film for phase change memory devices Jan. 1, 2013
8344349 Electronic component, and a method of manufacturing an electronic component Jan. 1, 2013
8324605 Dielectric mesh isolated phase change structure for phase change memory Dec. 4, 2012
8309179 Selenium/group 1b ink and methods of making and using same Nov. 13, 2012
8298849 Nitrogen reactive sputtering of Cu-In-Ga-N for solar cells Oct. 30, 2012
8298856 Polycrystalline CDTE thin film semiconductor photovoltaic cell structures for use in solar electricity generation Oct. 30, 2012
8288255 N-type doping of zinc telluride Oct. 16, 2012
8288849 Method for attaching wide bus memory and serial memory to a processor within a chip scale package footprint Oct. 16, 2012
8282995 Selenium/group 1b/group 3a ink and methods of making and using same Oct. 9, 2012
8277894 Selenium ink and methods of making and using same Oct. 2, 2012
8273598 Method for forming a self-aligned bit line for PCRAM and self-aligned etch back process Sep. 25, 2012
8268665 Antimony and germanium complexes useful for CVD/ALD of metal thin films Sep. 18, 2012
8252619 Treatment of thin film layers photovoltaic module manufacture Aug. 28, 2012
8247741 Dynamic system for variable heating or cooling of linearly conveyed substrates Aug. 21, 2012
8216862 Forming and training processes for resistance-change memory cell Jul. 10, 2012
8211742 Lateral phase change memory Jul. 3, 2012
8198124 Methods of self-aligned growth of chalcogenide memory access device Jun. 12, 2012
8193027 Method of making a multicomponent film Jun. 5, 2012
8193388 Compounds for depositing tellurium-containing films Jun. 5, 2012
8187918 Methods of forming multi-level cell of semiconductor memory May. 29, 2012
8187914 Methods of forming a phase change memory device May. 29, 2012

1 2 3










 
 
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