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Class Information
Number: 438/706
Name: Semiconductor device manufacturing: process > Chemical etching > Vapor phase etching (i.e., dry etching)
Description: Processes wherein the chemical etchant is in a gaseous state when brought into contact with the semiconductive substrate.


Sub-classes under this class:

Class Number Class Name Patents
438/735 Differential etching of semiconductor substrate 236
438/734 Sequential etching steps on a single layer 512
438/707 Utilizing electromagnetic or wave energy 165


Patents under this class:

Patent Number Title Of Patent Date Issued
6294476 Plasma surface treatment method for forming patterned TEOS based silicon oxide layer with reliable via and interconnection formed therethrough Sep. 25, 2001
6290859 Tungsten coating for improved wear resistance and reliability of microelectromechanical devices Sep. 18, 2001
6291137 Sidewall formation for sidewall patterning of sub 100 nm structures Sep. 18, 2001
6291355 Method of fabricating a self-aligned contact opening Sep. 18, 2001
6287971 Method for forming a cell capacitor in DRAM device Sep. 11, 2001
6287973 Method for forming interconnection structure Sep. 11, 2001
6287974 Method of achieving top rounding and uniform etch depths while etching shallow trench isolation features Sep. 11, 2001
6284661 Method and apparatus for producing a wafer Sep. 4, 2001
6284662 Method of forming a cobalt silicide layer by use of a TEOS through oxide film for ion-implantation process Sep. 4, 2001
6284663 Method for making field effect devices and capacitors with thin film dielectrics and resulting devices Sep. 4, 2001
6280645 Wafer flattening process and system Aug. 28, 2001
6280646 Use of a chemically active reticle carrier for photomask etching Aug. 28, 2001
6281132 Device and method for etching nitride spacers formed upon an integrated circuit gate conductor Aug. 28, 2001
6281133 Method for forming an inter-layer dielectric layer Aug. 28, 2001
6281134 Method for combining logic circuit and capacitor Aug. 28, 2001
6277657 Apparatus for fabricating semiconductor device and fabrication method therefor Aug. 21, 2001
6277720 Silicon nitride dopant diffusion barrier in integrated circuits Aug. 21, 2001
6277747 Method for removal of etch residue immediately after etching a SOG layer Aug. 21, 2001
6277752 Multiple etch method for forming residue free patterned hard mask layer Aug. 21, 2001
6277757 Methods to modify wet by dry etched via profile Aug. 21, 2001
6277758 Method of etching doped silicon dioxide with selectivity to undoped silicon dioxide with a high density plasma etcher Aug. 21, 2001
6277759 Plasma etching methods Aug. 21, 2001
6277760 Method for fabricating ferroelectric capacitor Aug. 21, 2001
6274471 Method for making high-aspect-ratio contacts on integrated circuits using a borderless pre-opened hard-mask technique Aug. 14, 2001
6274493 Method for forming a via Aug. 14, 2001
6274500 Single wafer in-situ dry clean and seasoning for plasma etching process Aug. 14, 2001
6274506 Apparatus and method for dispensing processing fluid toward a substrate surface Aug. 14, 2001
6271144 Process for etching a polycrystalline Si(1-x)Ge(x) layer or a stack of polycrystalline Si(1-x)Ge(x) layer and of a polycrystalline Si layer, and its application to microelectronics Aug. 7, 2001
6271145 Method for making a micromachine Aug. 7, 2001
6267076 Gas phase planarization process for semiconductor wafers Jul. 31, 2001
6268226 Reactive ion etch loading measurement technique Jul. 31, 2001
6268292 Methods for use in formation of titanium nitride interconnects Jul. 31, 2001
6268293 Method of forming wires on an integrated circuit chip Jul. 31, 2001
6268294 Method of protecting a low-K dielectric material Jul. 31, 2001
6265320 Method of minimizing reactive ion etch damage of organic insulating layers in semiconductor fabrication Jul. 24, 2001
6261965 Effective removal of undesirably formed silicon carbide during the manufacture of semiconductor device Jul. 17, 2001
6261966 Method for improving trench isolation Jul. 17, 2001
6258637 Method for thin film deposition on single-crystal semiconductor substrates Jul. 10, 2001
6258722 Method of manufacturing CMOS device Jul. 10, 2001
6258723 Dry etching method and a TFT fabrication method Jul. 10, 2001
6255127 Analyzing method and apparatus for minute foreign substances, and manufacturing methods for manufacturing semiconductor device and liquid crystal display device using the same Jul. 3, 2001
6251784 Real-time control of chemical-mechanical polishing processing by monitoring ionization current Jun. 26, 2001
6245192 Gas distribution apparatus for semiconductor processing Jun. 12, 2001
6245684 Method of obtaining a rounded top trench corner for semiconductor trench etch applications Jun. 12, 2001
6242352 Method of preventing micro-scratches on the surface of a semiconductor wafer when performing a CMP process Jun. 5, 2001
6242357 Method for forming a deep trench capacitor of a DRAM cell Jun. 5, 2001
6242358 Method for etching metal film containing aluminum and method for forming interconnection line of semiconductor device using the same Jun. 5, 2001
6242362 Etch process for fabricating a vertical hard mask/conductive pattern profile to improve T-shaped profile for a silicon oxynitride hard mask Jun. 5, 2001
6239006 Native oxide removal with fluorinated chemistry before cobalt silicide formation May. 29, 2001
6239034 Method of manufacturing inter-metal dielectric layers for semiconductor devices May. 29, 2001



 
 
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