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Class Information
Number: 438/701
Name: Semiconductor device manufacturing: process > Chemical etching > Combined with coating step > Formation of groove or trench > Tapered configuration
Description: Processes wherein the viahole or trench is formed so as to possess nonparallel sides.


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

Patent Number Title Of Patent Date Issued
7365015 Damascene replacement metal gate process with controlled gate profile and length using Si.sub.1-xGe.sub.x as sacrificial material Apr. 29, 2008
7348202 CMOS image sensor and method for fabricating the same Mar. 25, 2008
7335593 Method of fabricating semiconductor device Feb. 26, 2008
7320927 In situ hardmask pullback using an in situ plasma resist trim process Jan. 22, 2008
7311850 Method of forming patterned thin film and method of fabricating micro device Dec. 25, 2007
7303648 Via etch process Dec. 4, 2007
7300882 Etching method and semiconductor device fabricating method Nov. 27, 2007
7297568 Three-dimensional structural body composed of silicon fine wire, its manufacturing method, and device using same Nov. 20, 2007
7282434 Method of manufacturing a semiconductor device Oct. 16, 2007
7271101 High density plasma chemical vapor deposition process Sep. 18, 2007
7259102 Etching technique to planarize a multi-layer structure Aug. 21, 2007
7255801 Deep submicron CMOS compatible suspending inductor Aug. 14, 2007
7241679 Method of manufacturing semiconductor device Jul. 10, 2007
7238609 Method for fabricating semiconductor device Jul. 3, 2007
7211517 Semiconductor device and method that includes reverse tapering multiple layers May. 1, 2007
7199053 Method for detecting end-point of chemical mechanical polishing process Apr. 3, 2007
7195927 Process for making magnetic memory structures having different-sized memory cell layers Mar. 27, 2007
7186650 Control of bottom dimension of tapered contact via variation(s) of etch process Mar. 6, 2007
7183217 Dry-etching method Feb. 27, 2007
7172971 Semiconductor device having a contact window including a lower with a wider to provide a lower contact resistance Feb. 6, 2007
7174072 Optical device having optical waveguide and method for manufacturing the same Feb. 6, 2007
7169711 Method of using carbon spacers for critical dimension (CD) reduction Jan. 30, 2007
7125791 Advanced copper damascene structure Oct. 24, 2006
7122476 Method for fabricating semiconductor device by forming trenches in different depths at a cellregion and a peripheral region for reducing self aligned source resistance at the cell region Oct. 17, 2006
7118933 Method for manufacturing optical bench, optical bench, optical module, silicon wafer substrate in which wiring and groove are formed, and wafer Oct. 10, 2006
7109120 Profiled standoff structure and method for optical display package Sep. 19, 2006
7098115 Semiconductor device and method of manufacturing the same Aug. 29, 2006
7084065 Method for fabricating a semiconductor device Aug. 1, 2006
7078279 Manufacturing method of a thin film transistor array substrate Jul. 18, 2006
7078346 High density plasma chemical vapor deposition process Jul. 18, 2006
7074725 Method for forming a storage node of a capacitor Jul. 11, 2006
7030008 Techniques for patterning features in semiconductor devices Apr. 18, 2006
7030444 Space process to prevent the reverse tunneling in split gate flash Apr. 18, 2006
7022602 Nitrogen-enriched low-k barrier layer for a copper metallization layer Apr. 4, 2006
7019400 Semiconductor device having multilayer interconnection structure and method for manufacturing the device Mar. 28, 2006
7015516 Led packages having improved light extraction Mar. 21, 2006
7001789 Method for fabricating a tapered optical coupling into a slab waveguide Feb. 21, 2006
6984858 Semiconductor device and manufacturing method thereof Jan. 10, 2006
6972235 Method for processing semiconductor substrate Dec. 6, 2005
6960530 Method of reducing the aspect ratio of a trench Nov. 1, 2005
6960522 Method for making damascene interconnect with bilayer capping film Nov. 1, 2005
6960514 Pitcher-shaped active area for field effect transistor and method of forming same Nov. 1, 2005
6929959 Manufacturing method of CPP type magnetic sensor having current-squeezing path Aug. 16, 2005
6924230 Method for forming a conductive layer Aug. 2, 2005
6905938 Method of forming interconnect structure with low dielectric constant Jun. 14, 2005
6893954 Method for patterning a semiconductor wafer May. 17, 2005
6892452 Method of forming a projection electrode May. 17, 2005
6890775 Yield based, in-line defect sampling method May. 10, 2005
6890846 Method for manufacturing semiconductor integrated circuit device May. 10, 2005
6886238 Method for manufacturing a head for recording and reading optical data May. 3, 2005

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