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Class Information
Number: 438/445
Name: Semiconductor device manufacturing: process > Formation of electrically isolated lateral semiconductive structure > Recessed oxide by localized oxidation (i.e., locos) > Preliminary etching of groove > Masking of groove sidewall
Description: Process utilizing a layer in contact with the groove sidewalls which serves as a protective covering during either an etching or oxidation step.


Sub-classes under this class:

Class Number Class Name Patents
438/447 Dopant addition 66
438/446 Polysilicon containing sidewall 50


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
7611994 Fine patterning method for semiconductor device Nov. 3, 2009
7598133 Semiconductor memory device and a method of manufacturing the same Oct. 6, 2009
7592215 Semiconductor device having self-aligned contact hole and method of fabricating the same Sep. 22, 2009
7553741 Manufacturing method of semiconductor device Jun. 30, 2009
7534723 Methods of forming fine patterns, and methods of forming trench isolation layers using the same May. 19, 2009
7504308 Method of dual bird's beak LOCOS isolation Mar. 17, 2009
7498639 Integrated BiCMOS semiconductor circuit Mar. 3, 2009
7488671 Nanostructure arrays and methods of making same Feb. 10, 2009
7413962 Method for forming sublithographic features during the manufacture of a semiconductor device and a resulting in-process apparatus Aug. 19, 2008
7407890 Patterning sub-lithographic features with variable widths Aug. 5, 2008
7393756 Method for fabricating a trench isolation structure having a high aspect ratio Jul. 1, 2008
7314810 Method for forming fine pattern of semiconductor device Jan. 1, 2008
7273780 Semiconductor device having box-shaped cylindrical storage nodes and fabrication method thereof Sep. 25, 2007
7262127 Method for Cu metallization of highly reliable dual damascene structures Aug. 28, 2007
7157350 Method of forming SOI-like structure in a bulk semiconductor substrate using self-organized atomic migration Jan. 2, 2007
7094636 Method of forming a conductive line Aug. 22, 2006
7084502 Microelectromechanical device and method for producing it Aug. 1, 2006
7052972 Method for forming sublithographic features during the manufacture of a semiconductor device and a resulting in-process apparatus May. 30, 2006
7049206 Device isolation for semiconductor devices May. 23, 2006
7049624 Member and member manufacturing method May. 23, 2006
7041573 Method for fabricating semiconductor device having trench isolation May. 9, 2006
6991994 Method of forming rounded corner in trench Jan. 31, 2006
6958276 Method of manufacturing trench-type MOSFET Oct. 25, 2005
6943088 Method of manufacturing a trench isolation structure for a semiconductor device with a different degree of corner rounding Sep. 13, 2005
6794259 Method for fabricating self-aligning mask layers Sep. 21, 2004
6787426 Method for forming word line of semiconductor device Sep. 7, 2004
6784076 Process for making a silicon-on-insulator ledge by implanting ions from silicon source Aug. 31, 2004
6777297 Disposable spacer and method of forming and using same Aug. 17, 2004
6746936 Method for forming isolation film for semiconductor devices Jun. 8, 2004
6743695 Shallow trench isolation method and method for manufacturing non-volatile memory device using the same Jun. 1, 2004
6727150 Methods of forming trench isolation within a semiconductor substrate including, Tshaped trench with spacers Apr. 27, 2004
6727158 Structure and method for forming a faceted opening and a layer filling therein Apr. 27, 2004
6727142 Orientation independent oxidation of nitrided silicon Apr. 27, 2004
6727161 Isolation technology for submicron semiconductor devices Apr. 27, 2004
6723618 Methods of forming field isolation structures Apr. 20, 2004
6720233 Method of producing trench insulation in a substrate Apr. 13, 2004
6682987 METHODS OF FORMING A TRENCH ISOLATION REGION IN A SUBSTRATE BY REMOVING A PORTION OF A LINER LAYER AT A BOUNDARY BETWEEN A TRENCH ETCHING MASK AND AN OXIDE LAYER IN A TRENCH AND INTEGRATED CIR Jan. 27, 2004
6673635 Method for alignment mark formation for a shallow trench isolation process Jan. 6, 2004
6670691 Shallow trench isolation fill process Dec. 30, 2003
6649490 METHODS FOR FORMING INTEGRATED CIRCUIT DEVICES THROUGH SELECTIVE ETCHING OF AN INSULATION LAYER TO INCREASE THE SELF-ALIGNED CONTACT AREA ADJACENT A SEMICONDUCTOR REGION AND INTEGRATED CIRCUIT Nov. 18, 2003
6649489 Poly etching solution to improve silicon trench for low STI profile Nov. 18, 2003
6613632 Fabrication method for a silicon nitride read-only memory Sep. 2, 2003
6579778 Source bus formation for a flash memory using silicide Jun. 17, 2003
6576957 Etch-stopped SOI back-gate contact Jun. 10, 2003
6566273 Etch selectivity inversion for etching along crystallographic directions in silicon May. 20, 2003
6541361 Plasma enhanced method for increasing silicon-containing photoresist selectivity Apr. 1, 2003
6482715 Method of forming shallow trench isolation layer in semiconductor device Nov. 19, 2002
6479368 Method of manufacturing a semiconductor device having a shallow trench isolating region Nov. 12, 2002
6461981 Method of forming a conformal oxide film Oct. 8, 2002
6451672 Method for manufacturing electronic devices in semiconductor substrates provided with gettering sites Sep. 17, 2002

1 2 3 4


 
 
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