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Class Information
Number: 438/700
Name: Semiconductor device manufacturing: process > Chemical etching > Combined with coating step > Formation of groove or trench
Description: Processes wherein at least one groove or trench is formed by a combination of chemical etching and material deposition.


Sub-classes under this class:

Class Number Class Name Patents
438/702 Plural coating steps 633
438/701 Tapered configuration 490


Patents under this class:
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Patent Number Title Of Patent Date Issued
6287973 Method for forming interconnection structure Sep. 11, 2001
6284606 Process to achieve uniform groove depth in a silicon substrate Sep. 4, 2001
6281093 Method to reduce trench cone formation in the fabrication of shallow trench isolations Aug. 28, 2001
6281115 Sidewall protection for a via hole formed in a photosensitive, low dielectric constant layer Aug. 28, 2001
6277733 Oxygen-free, dry plasma process for polymer removal Aug. 21, 2001
6277752 Multiple etch method for forming residue free patterned hard mask layer Aug. 21, 2001
6277755 Method for fabricating an interconnect Aug. 21, 2001
6277756 Method for manufacturing semiconductor device Aug. 21, 2001
6274419 Trench isolation of field effect transistors Aug. 14, 2001
6274437 Trench gated power device fabrication by doping side walls of partially filled trench Aug. 14, 2001
6274482 Semiconductor processing methods of forming a contact opening Aug. 14, 2001
6274483 Method to improve metal line adhesion by trench corner shape modification Aug. 14, 2001
6274498 Methods of forming materials within openings, and method of forming isolation regions Aug. 14, 2001
6271070 Method of manufacturing semiconductor device Aug. 7, 2001
6271078 Simplifying conductive plate/via isolation Aug. 7, 2001
6271116 Method of fabricating interconnects Aug. 7, 2001
6271142 Process for manufacture of trench DRAM capacitor buried plates Aug. 7, 2001
6271143 Method for preventing trench fill erosion Aug. 7, 2001
6268283 Method for forming dual damascene structure Jul. 31, 2001
6268293 Method of forming wires on an integrated circuit chip Jul. 31, 2001
6265292 Method of fabrication of a novel flash integrated circuit Jul. 24, 2001
6265316 Etching method Jul. 24, 2001
6261921 Method of forming shallow trench isolation structure Jul. 17, 2001
6261962 Method of surface treatment of semiconductor substrates Jul. 17, 2001
6258729 Oxide etching method and structures resulting from same Jul. 10, 2001
6258732 Method of forming a patterned organic dielectric layer on a substrate Jul. 10, 2001
6255207 Composite planarizing dielectric layer employing high density plasma chemical vapor deposited (HDP-CVD) underlayer Jul. 3, 2001
6255218 Semiconductor device and fabrication method thereof Jul. 3, 2001
6251774 Method of manufacturing a semiconductor device Jun. 26, 2001
6251791 Eliminating etching microloading effect by in situ deposition and etching Jun. 26, 2001
6248636 Method for forming contact holes of semiconductor memory device Jun. 19, 2001
6245640 Method for fabricating a semiconductor structure Jun. 12, 2001
6245656 Method for producing multi-level contacts 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
6242805 Method of using a polish stop film to control dishing during copper chemical mechanical polishing Jun. 5, 2001
6235628 Method of forming dual damascene arrangement for metal interconnection with low k dielectric constant materials and oxide middle etch stop layer May. 22, 2001
6235637 Method for marking a wafer without inducing flat edge particle problem May. 22, 2001
6235642 Method for reducing plasma charging damages May. 22, 2001
6235645 Process for cleaning silicon semiconductor substrates May. 22, 2001
6232170 Method of fabricating trench for SOI merged logic DRAM May. 15, 2001
6232202 Method for manufacturing shallow trench isolation structure including a dual trench May. 15, 2001
6232231 Planarized semiconductor interconnect topography and method for polishing a metal layer to form interconnect May. 15, 2001
6232232 High selectivity BPSG to TEOS etchant May. 15, 2001
6232243 Interconnect having recessed contact members with penetrating blades for testing semiconductor dice and packages with contact bumps May. 15, 2001
6228768 Storage-annealing plated CU interconnects May. 8, 2001
6225207 Techniques for triple and quadruple damascene fabrication May. 1, 2001
6225217 Method of manufacturing semiconductor device having multilayer wiring May. 1, 2001
6225227 Method for manufacturing semiconductor device May. 1, 2001
6225230 Method of manufacturing semiconductor device May. 1, 2001

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