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Class Information
Number: 257/E21.658
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Processes or apparatus adapted for manufacture or treatment of semiconductor or solid-state devices or of parts thereof (epo) > Manufacture or treatment of devices consisting of plurality of solid-state components formed in or on common substrate or of parts thereof; manufacture of integrated circuit devices or of parts thereof (epo) > Manufacture or treatment of devices consisting of plurality of solid-state components or integrated circuits formed in, or on, common substrate (epo) > With subsequent division of substrate into plural individual devices (epo) > To produce devices each consisting of plurality of components, e.g., integrated circuits (epo) > Substrate being semiconductor, using silicon technology (epo) > Field-effect technology (epo) > Mis technology (epo) > Dynamic random access memory structures (dram) (epo) > Characterized by type of capacitor (epo) > Characterized by data lines (epo) > Making bit line contact (epo)
Description: This subclass is indented under subclass E21.656. This subclass is substantially the same in scope as ECLA classification H01L21/8242D4.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8704284 Semiconductor device having bit line expanding islands Apr. 22, 2014
8691656 Methods of forming an interconnect between a substrate bit line contact and a bit line in DRAM Apr. 8, 2014
8642464 Method of manufacturing semiconductor device Feb. 4, 2014
8546220 Method for fabricating buried bit lines Oct. 1, 2013
8518788 Methods of forming a plurality of capacitors Aug. 27, 2013
8507971 Apparatus and method for a memory array with shallow trench isolation regions between bit lines for increased process margins Aug. 13, 2013
8507344 Semiconductor device having a buried gate and method for manufacturing the same Aug. 13, 2013
8507375 Alignment tolerant semiconductor contact and method Aug. 13, 2013
8476154 Method of making a charge trapping non-volatile semiconductor memory device Jul. 2, 2013
8435876 Method of manufacturing semiconductor device May. 7, 2013
8394680 Layout for semiconductor device and method of fabricating the semiconductor device Mar. 12, 2013
8349664 Nonvolatile memory cell comprising a diode and a resistance-switching material Jan. 8, 2013
8319264 Semiconductor device and method for manufacturing the same Nov. 27, 2012
8216897 Method for manufacturing a capacitor of a semiconductor device Jul. 10, 2012
8198661 Semiconductor device and method of forming semiconductor device Jun. 12, 2012
8148260 Semiconductor memory device and method of forming the same Apr. 3, 2012
8138538 Interconnect structure for semiconductor devices Mar. 20, 2012
8119512 Method for fabricating semiconductor device with damascene bit line Feb. 21, 2012
8093662 Semiconductor memory Jan. 10, 2012
8084801 Cell structure for a semiconductor memory device and method of fabricating the same Dec. 27, 2011
8053360 Semiconductor device and method of manufacturing the same Nov. 8, 2011
8034684 Semiconductor device with improved overlay margin and method of manufacturing the same Oct. 11, 2011
8035152 Semiconductor device having shared bit line structure Oct. 11, 2011
8030158 Method for fabricating contacts in semiconductor device Oct. 4, 2011
8030168 Methods of forming DRAM memory cells Oct. 4, 2011
8013385 Semiconductor device Sep. 6, 2011
8012810 Low parasitic capacitance bit line process for stack DRAM Sep. 6, 2011
7989335 Methods of forming insulation layer patterns and methods of manufacturing semiconductor devices including insulation layer patterns Aug. 2, 2011
7951675 SI trench between bitline HDP for BVDSS improvement May. 31, 2011
7939411 Method for fabricating semiconductor device with vertical gate May. 10, 2011
7932168 Method for fabricating bitline in semiconductor device Apr. 26, 2011
7927945 Method for manufacturing semiconductor device having 4F2 transistor Apr. 19, 2011
7923371 Method of manufacturing semiconductor device having contact plugs Apr. 12, 2011
7867842 Method and apparatus for forming planar alloy deposits on a substrate Jan. 11, 2011
7858477 Forming a buried bit line in a bulb-shaped trench Dec. 28, 2010
7812399 Semiconductor device comprising multi-layer rectangular gate electrode surrounded on four sides by sidewall spacer and implantation regions Oct. 12, 2010
7807513 Method for manufacturing semiconductor device Oct. 5, 2010
7776659 Semiconductor device manufacturing method Aug. 17, 2010
7763542 Semiconductor memory device and method of fabricating the same Jul. 27, 2010
7749834 Method of fabricating semiconductor devices having buried contact plugs Jul. 6, 2010
7737480 Semiconductor memory device and manufacturing method thereof Jun. 15, 2010
7732279 Semiconductor device with improved overlay margin and method of manufacturing the same Jun. 8, 2010
7713855 Method for forming bit-line contact plug and transistor structure May. 11, 2010
7635626 Method of manufacturing dynamic random access memory Dec. 22, 2009
7589369 Semiconductor constructions Sep. 15, 2009
7575992 Method of forming micro patterns in semiconductor devices Aug. 18, 2009
7572684 Nonvolatile memory devices and methods of forming the same Aug. 11, 2009
7563668 Semiconductor device and method of manufacturing same Jul. 21, 2009
7547597 Direct alignment scheme between multiple lithography layers Jun. 16, 2009
7544616 Methods of forming nitride read only memory and word lines thereof Jun. 9, 2009

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