Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Physics
Class Information
Number: 257/E21.033
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) > Making mask on semicond uctor body for further photolithographic processing (epo) > Comprising inorganic layer (epo)
Description: This subclass is indented under subclass E21.023. This subclass is substantially the same in scope as ECLA classification H01L21/033.


Sub-classes under this class:

Class Number Class Name Patents
257/E21.035 Characterized by their composition, e.g., multilayer masks, materials (epo) 257
257/E21.036 Characterized by their size, orientation, disposition, behavior, shape, in horizontal or vertical plane (epo) 74
257/E21.034 For lift-off process (epo) 49


Patents under this class:
1 2 3 4 5 6 7 8 9 10

Patent Number Title Of Patent Date Issued
7432212 Methods of processing a semiconductor substrate Oct. 7, 2008
7416995 Method for fabricating controlled stress silicon nitride films Aug. 26, 2008
7393707 Method for manufacturing an electro-optical device Jul. 1, 2008
7329613 Structure and method for forming semiconductor wiring levels using atomic layer deposition Feb. 12, 2008
7288420 Method for manufacturing an electro-optical device Oct. 30, 2007
7241688 Aperture masks for circuit fabrication Jul. 10, 2007
7192789 Method for monitoring an ion implanter Mar. 20, 2007
7176053 Laser ablation method for fabricating high performance organic devices Feb. 13, 2007
7172965 Method for manufacturing semiconductor device Feb. 6, 2007
7138341 Process for making a memory structure Nov. 21, 2006
7115524 Methods of processing a semiconductor substrate Oct. 3, 2006
6797597 Process for treating complementary regions of the surface of a substrate and semiconductor product obtained by this process Sep. 28, 2004
6743729 Etching method and etching apparatus of carbon thin film Jun. 1, 2004
6225217 Method of manufacturing semiconductor device having multilayer wiring May. 1, 2001
6140225 Method of manufacturing semiconductor device having multilayer wiring Oct. 31, 2000
6025268 Method of etching conductive lines through an etch resistant photoresist mask Feb. 15, 2000
6025115 Processing method for etching a substrate Feb. 15, 2000
5981001 Processing method for selectively irradiating a surface in presence of a reactive gas to cause etching Nov. 9, 1999
5962194 Processing method and apparatus Oct. 5, 1999
5863706 Processing method for patterning a film Jan. 26, 1999
5847465 Contacts for semiconductor devices Dec. 8, 1998
5837560 Method of masking substrates leaving exposed facets Nov. 17, 1998
5824455 Processing method and apparatus Oct. 20, 1998
5714306 Processing method and apparatus Feb. 3, 1998
5528058 IGBT device with platinum lifetime control and reduced gaw Jun. 18, 1996
5420067 Method of fabricatring sub-half-micron trenches and holes May. 30, 1995
5409566 Slope etching process Apr. 25, 1995
5334550 Method of producing a self-aligned window at recessed intersection of insulating regions Aug. 2, 1994
5283201 High density power device fabrication process Feb. 1, 1994
5283202 IGBT device with platinum lifetime control having gradient or profile tailored platinum diffusion regions Feb. 1, 1994
5262336 IGBT process to produce platinum lifetime control Nov. 16, 1993
5256583 Mask surrogate semiconductor process with polysilicon gate protection Oct. 26, 1993
5246879 Method of forming nanometer-scale trenches and holes Sep. 21, 1993
5212103 Method of making a heterojunction bipolar transistor May. 18, 1993
5204276 Method of manufacturing semiconductor device Apr. 20, 1993
5182234 Profile tailored trench etch using a SF.sub.6 -O.sub.2 etching composition wherein both isotropic and anisotropic etching is achieved by varying the amount of oxygen Jan. 26, 1993
5127989 Method of forming a thin film pattern with a trapezoidal cross section Jul. 7, 1992
5119150 Compound semiconductor structure including layer limiting silicon diffusion Jun. 2, 1992
5110760 Method of nanometer lithography May. 5, 1992
5100813 Method of manufacturing bipolar transistor Mar. 31, 1992
5089434 Mask surrogate semiconductor process employing dopant-opaque region Feb. 18, 1992
5079177 Process for fabricating high performance BiCMOS circuits Jan. 7, 1992
5073812 Heterojunction bipolar transistor Dec. 17, 1991
5070029 Semiconductor process using selective deposition Dec. 3, 1991
5067002 Integrated circuit structures having polycrystalline electrode contacts Nov. 19, 1991
5064774 Self-aligned bipolar transistor process Nov. 12, 1991
5061645 Method of manufacturing a bipolar transistor Oct. 29, 1991
5049964 Bipolar transistor and method of manufacturing the same Sep. 17, 1991
5047366 Method of diffusing silicon into compound semiconductors and compound semiconductor devices Sep. 10, 1991
5034351 Process for forming a feature on a substrate without recessing the surface of the substrate Jul. 23, 1991

1 2 3 4 5 6 7 8 9 10


 
 
  Recently Added Patents
Method for forming carbide banding in steel materials using deformation
Treatment of diabetes with copper binding compounds
Upright luggage case
Spoke for reel
Chemical and particulate filters containing chemically modified carbon nanotube structures
Plum tree named `Black Majesty`
Manufacturing method of a display device using a two-layered resist
  Randomly Featured Patents
Integrated-optics expansion interferometer in an extension-metrological neutral environment
Warning device for a vehicle
Optical disk recording/reproducing apparatus and method thereof
Arrangement for automatic working data set-up for driving implements
Method of treating hypertriglyceridemia with an erythromycin compound
End-of-train LED beacon
Piperidine derivatives, their production and use as stabilizers
Safety device against overturning crane
Broadcasting program displaying device for receiving and displaying a program video and property information
Complex mixtures exhibiting selective inhibition of cyclooxygenase-2