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Class Information
Number: 438/704
Name: Semiconductor device manufacturing: process > Chemical etching > Having liquid and vapor etching steps
Description: Processes having a liquid (i.e., wet) chemical etching step and a gaseous (i.e., dry) chemical etching step.


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

Patent Number Title Of Patent Date Issued
6180440 Method of fabricating a recessed-gate FET without producing voids in the gate metal Jan. 30, 2001
6180466 Isotropic assisted dual trench etch Jan. 30, 2001
6180528 Method for forming a minute resist pattern and method for forming a gate electrode Jan. 30, 2001
6177353 Metallization etching techniques for reducing post-etch corrosion of metal lines Jan. 23, 2001
6174596 Process for fabricating dual damascene structure by applying an etch-differentiating technique on a light sensitive organic oxide layer Jan. 16, 2001
6174817 Two step oxide removal for memory cells Jan. 16, 2001
6165870 Element isolation method for semiconductor devices including etching implanted region under said spacer to form a stepped trench structure Dec. 26, 2000
6165842 Method for fabricating a non-volatile memory device using nano-crystal dots Dec. 26, 2000
6150275 Micromechanical system fabrication method using (111) single crystalline silicon Nov. 21, 2000
6147003 Method of manufacturing semiconductor device Nov. 14, 2000
6140254 Edge bead removal for nanoporous dielectric silica coatings Oct. 31, 2000
6140244 Method for forming a spacer Oct. 31, 2000
6132522 Wet processing methods for the manufacture of electronic components using sequential chemical processing Oct. 17, 2000
6117793 Using silicide cap as an etch stop for multilayer metal process and structures so formed Sep. 12, 2000
6100202 Pre deposition stabilization method for forming a void free isotropically etched anisotropically patterned doped silicate glass layer Aug. 8, 2000
6100183 Method for fabricating a via Aug. 8, 2000
6090688 Method for fabricating an SOI substrate Jul. 18, 2000
6080674 Method for forming via holes Jun. 27, 2000
6074947 Process for improving uniform thickness of semiconductor substrates using plasma assisted chemical etching Jun. 13, 2000
6057239 Dual damascene process using sacrificial spin-on materials May. 2, 2000
6046113 Combined dry and wet etch for improved silicide formation Apr. 4, 2000
6043154 Method for manufacturing charge storage electrode Mar. 28, 2000
6037270 Method of manufacturing semiconductor device and methods of processing, analyzing and manufacturing its substrate Mar. 14, 2000
6025270 Planarization process using tailored etchback and CMP Feb. 15, 2000
6020263 Method of recovering alignment marks after chemical mechanical polishing of tungsten Feb. 1, 2000
6012469 Etch residue clean Jan. 11, 2000
6008129 Process for forming a semiconductor device Dec. 28, 1999
6006764 Method of stripping photoresist from Al bonding pads that prevents corrosion Dec. 28, 1999
6006763 Surface treatment method Dec. 28, 1999
6001719 Methods of forming metal silicide layers having insulator-filled recesses therein Dec. 14, 1999
5981355 Method of forming isolating region Nov. 9, 1999
5976977 Process for DRAM capacitor formation Nov. 2, 1999
5972794 Silicon stencil mask manufacturing method Oct. 26, 1999
5968845 Method for etching a compound semiconductor, a semi-conductor laser device and method for producing the same Oct. 19, 1999
5968851 Controlled isotropic etch process and method of forming an opening in a dielectric layer Oct. 19, 1999
5962345 Method to reduce contact resistance by means of in-situ ICP Oct. 5, 1999
5935870 Top view TEM sample preparation method Aug. 10, 1999
5933728 Process for fabricating bottom electrode of capacitor Aug. 3, 1999
5925577 Method for forming via contact hole in a semiconductor device Jul. 20, 1999
5912185 Methods for forming contact holes having improved sidewall profiles Jun. 15, 1999
5899747 Method for forming a tapered spacer May. 4, 1999
5897353 Method of forming dielectric film of semiconductor memory device Apr. 27, 1999
5888309 Lateral etch inhibited multiple for forming a via through a microelectronics layer susceptible to etching within a fluorine containing plasma followed by an oxygen containing plasma Mar. 30, 1999
5869399 Method for increasing utilizable surface of rugged polysilicon layer in semiconductor device Feb. 9, 1999
5868854 Method and apparatus for processing samples Feb. 9, 1999
5865900 Etch method for removing metal-fluoropolymer residues Feb. 2, 1999
5863829 Process for fabricating SOI substrate Jan. 26, 1999
5858859 Semiconductor device having a trench for device isolation fabrication method Jan. 12, 1999
5853602 Method of dry etching for patterning refractory metal layer improved in etching rate, anisotropy and selectivity to silicon oxide Dec. 29, 1998
RE36006 Metal selective polymer removal Dec. 22, 1998

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