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) > Patents - Class: 257/E21.07

Browse by:

Browse by Category: Main > Physics

Class Information
Number: 257/E21.07
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)
Description: This subclass is indented under subclass E21.068. This subclass is substantially the same in scope as ECLA classification H01L21/10.

Sub-classes under this class:

Class Number	Class Name	Patents
257/E21.071	Application of se or te to substrate or foundation plate (epo)	1
257/E21.072	Conversion of se or te to conductive state (epo)	0
257/E21.074	Provision of discrete insulating layer, i.e., specified barrier layer material (epo)	0
257/E21.073	Treatment of surface of se or te layer after having been made conductive (epo)	1

Patents under this class:

Patent Number	Title Of Patent	Date Issued
7374174	Small electrode for resistance variable devices	May. 20, 2008
7229918	Nitrogen rich barrier layers and methods of fabrication thereof	Jun. 12, 2007
7163837	Method of forming a resistance variable memory element	Jan. 16, 2007

Recently Added Patents

Shoulder rest for hand held string instruments

Vehicle seat component having air bag guide and trim cover with release seam

Washing machine

Debris sensor for cleaning apparatus

Exhaust gas purification system of internal combustion engine

System and method for obtaining a status of an authorization device over a network for administration of theatrical performances

Randomly Featured Patents

Process for making puncture resistant, heat-shrinkable films containing very low density polyethylene

Antenna for radio apparatus

Tamper-proof rivet assembly

Method for making and measuring a coating on the surface of a medical device using an ultraviolet laser

Anisotropic liquid phase photochemical mercury cadmium telluride etch

Vehicle maneuvering control device

High-duty sliding surface bearing

Process for preparing solid formulations of lipid-regulating agents with enhanced dissolution and absorption

Double funnel bag material and method

Streaming reads for early processing in a cascaded memory subsystem with buffered memory devices

© 2006. PatentGenius. All Rights Reserved.