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Class Information
Number: 257/E21.002
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)
Description: This subclass is indented under subclass E21.001. This subclass is substantially the same in scope as ECLA classification H01L21/02.

Sub-classes under this class:

Class Number Class Name Patents
257/E21.003 Manufacture of two-terminal component for integrated circuit (epo) 44
257/E21.023 Making mask on semicond uctor body for further photolithographic processing (epo) 171
257/E21.04 Device having at least one potential-jump barrier or surface barrier, e.g., pn junction, depletion layer, carrier concentration layer (epo) 82
257/E21.52 Devices having no potential-jump barrier or surface barrier (epo) 39

Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8710660 Hybrid interconnect scheme including aluminum metal line in low-k dielectric Apr. 29, 2014
8709850 Method for production of a thermoelectric apparatus Apr. 29, 2014
8710597 Method and structure for adding mass with stress isolation to MEMS structures Apr. 29, 2014
8710601 MEMS structure and method for making the same Apr. 29, 2014
8710602 Method and system for providing magnetic junctions having improved characteristics Apr. 29, 2014
8709848 Method for etched cavity devices Apr. 29, 2014
8703517 Method of Manufacturing a Semiconductor Device Including Removing a Reformed Layer Apr. 22, 2014
8692112 Organic thin film solar cell and fabrication method of same Apr. 8, 2014
8685777 Method for fabricating a fixed structure defining a volume receiving a movable element in particular of a MEMS Apr. 1, 2014
8685801 Method of manufacturing semiconductor device Apr. 1, 2014
8679886 Microelectronic device and MEMS package structure and fabricating method thereof Mar. 25, 2014
8679885 Self-aligned biosensors with enhanced sensitivity Mar. 25, 2014
8679863 Fine tuning highly resistive substrate resistivity and structures thereof Mar. 25, 2014
8673670 Micro-electro-mechanical system (MEMS) structures and design structures Mar. 18, 2014
8673691 Method for manufacturing a semiconductor device Mar. 18, 2014
8669638 High power semiconductor device for wireless applications and method of forming a high power semiconductor device Mar. 11, 2014
8670638 Signal distribution and radiation in a wireless enabled integrated circuit (IC) using a leaky waveguide Mar. 11, 2014
8664023 Deposition method, deposition film, and method for producing organic electroluminescence display device Mar. 4, 2014
8647969 Method for forming a semiconductor layer with improved gap filling properties Feb. 11, 2014
8637945 Component having a micromechanical microphone structure, and method for its production Jan. 28, 2014
8637413 Nonvolatile resistive memory element with a passivated switching layer Jan. 28, 2014
8633037 Semiconductor device Jan. 21, 2014
8633043 Method of fabricating fringe field switching liquid crystal display device Jan. 21, 2014
8633553 Process for manufacturing a micromechanical structure having a buried area provided with a filter Jan. 21, 2014
8627720 Acceleration sensor Jan. 14, 2014
8629519 Tunneling magnetoresistance sensor Jan. 14, 2014
8624620 Test system and write wafer Jan. 7, 2014
8614135 Methods of manufacturing phase change memory devices Dec. 24, 2013
8614491 Package interface plate for package isolation structures Dec. 24, 2013
8610223 Embedded microelectromechanical systems sensor and related devices and methods Dec. 17, 2013
8603840 Manufacturing method of semiconductor device Dec. 10, 2013
8603841 Manufacturing methods of semiconductor device and light-emitting display device Dec. 10, 2013
8597968 Active device array substrate Dec. 3, 2013
8598596 Method for producing an optoelectronic semiconductor chip and optoelectronic semiconductor chip Dec. 3, 2013
8580582 Semiconductor fabricating device and method for driving the same, and method for fabricating magnetic tunnel junction using the same Nov. 12, 2013
8581272 Method of producing nanopatterned articles, and articles produced thereby Nov. 12, 2013
8575750 Semiconductor detector element configuration for very high efficiency gamma-ray detection Nov. 5, 2013
8576368 Driving circuit for a liquid crystal display device, method of manufacturing the same and display device having the same Nov. 5, 2013
8569753 Storage device comprising semiconductor elements Oct. 29, 2013
8563342 Method of making semiconductor optical integrated device by alternately arranging spacers with integrated device arrays Oct. 22, 2013
8564084 Radiation detection and a method of manufacturing a radiation detector Oct. 22, 2013
8557647 Method for fabricating field effect transistor devices with high-aspect ratio mask Oct. 15, 2013
8557676 Method of manufacturing SOI substrate and method of manufacturing semiconductor device Oct. 15, 2013
8553911 Diaphragm of MEMS electroacoustic transducer Oct. 8, 2013
8552426 Composite dielectric material doped with rare earth metal oxide and manufacturing method thereof Oct. 8, 2013
8552411 Manufacturing method of semiconductor device Oct. 8, 2013
8551811 Composite dielectric material doped with rare earth metal oxide and manufacturing method thereof Oct. 8, 2013
8546961 Alignment marks to enable 3D integration Oct. 1, 2013
8546798 Composite dielectric material doped with rare earth metal oxide and manufacturing method thereof Oct. 1, 2013
8546171 Method of fabricating thin film solar cell Oct. 1, 2013

1 2 3 4 5 6 7 8

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