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Class Information
Number: 257/E23.019
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Packaging, interconnects, and markings for semiconductor or other solid-state devices (epo) > Arrangements for conducting electric current to or from solid-state body in operation, e.g., leads, terminal arrangements (epo) > Consisting of lead-in layers inseparably applied to semiconductor body (epo) > Consisting of layered constructions comprising conductive layers and insulating layers, e.g., planar contacts (epo)
Description: This subclass is indented under subclass E23.012. This subclass is substantially the same in scope as ECLA classification H01L23/485.










Sub-classes under this class:

Class Number Class Name Patents
257/E23.02 Bonding areas, e.g., pads (epo) 1,264
257/E23.021 Bump or ball contacts (epo) 2,068
257/E23.022 Overhang structure (epo) 39


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

Patent Number Title Of Patent Date Issued
6917115 Alignment pattern for a semiconductor device manufacturing process Jul. 12, 2005
6913983 Integrated circuit arrangement and method for the manufacture thereof Jul. 5, 2005
6909132 Semiconductor device and its manufacturing method Jun. 21, 2005
6908857 Method of manufacturing semiconductor device Jun. 21, 2005
6903005 Method for the formation of RuSixOy-containing barrier layers for high-k dielectrics Jun. 7, 2005
6903009 Methods for fabricating a contact for an integrated circuit Jun. 7, 2005
6900546 Semiconductor memory device and method for manufacturing the same May. 31, 2005
6897542 Semiconductor assemblies May. 24, 2005
6893949 Semiconductor devices having contact plugs and local interconnects and methods for making the same May. 17, 2005
6891244 Plug structure having low contact resistance and method of manufacturing May. 10, 2005
6888245 Semiconductor device May. 3, 2005
6888252 Method of forming a conductive contact May. 3, 2005
6882017 Field effect transistors and integrated circuitry Apr. 19, 2005
6882052 Plasma enhanced liner Apr. 19, 2005
6873053 Semiconductor device with smoothed pad portion Mar. 29, 2005
6870220 Method and apparatus for improved MOS gating to reduce miller capacitance and switching losses Mar. 22, 2005
6870263 Device interconnection Mar. 22, 2005
6864582 Semiconductor interconnect and method of providing interconnect using a contact region Mar. 8, 2005
6864545 Semiconductor device including low-resistance wires electrically connected to impurity layers Mar. 8, 2005
6861759 Semiconductor apparatus of which reliability of interconnections is improved and manufacturing method of the same Mar. 1, 2005
6861756 Semiconductor integrated circuit device and fabrication process thereof Mar. 1, 2005
6858529 Methods of forming contact plugs including polysilicon doped with an impurity having a lesser diffusion coefficient than phosphorus Feb. 22, 2005
6855610 Method of forming self-aligned contact structure with locally etched gate conductive layer Feb. 15, 2005
6838737 Semiconductor device for applying well bias and method of fabricating the same Jan. 4, 2005
6836019 Semiconductor device having multilayer interconnection structure and manufacturing method thereof Dec. 28, 2004
6833291 Semiconductor processing methods Dec. 21, 2004
6831362 Diffusion barrier layer for semiconductor device and fabrication method thereof Dec. 14, 2004
6828616 Integrated circuit devices that utilize doped Poly-Si1-xGex conductive plugs as interconnects Dec. 7, 2004
6825113 Asymmetric, double-sided self-aligned silicide and method of forming the same Nov. 30, 2004
6825547 Semiconductor device including edge bond pads Nov. 30, 2004
6821884 Method of fabricating a semiconductor device Nov. 23, 2004
6822333 Methods of filling constrained spaces with insulating materials and/or of forming contact holes and/or contacts in an integrated circuit Nov. 23, 2004
6822299 Boron-doped titanium nitride layer for high aspect ratio semiconductor devices Nov. 23, 2004
6818958 Semiconductor device and process for its manufacture to increase threshold voltage stability Nov. 16, 2004
6815752 Semiconductor memory device for increasing access speed thereof Nov. 9, 2004
6812139 Method for metal fill by treatment of mobility layers Nov. 2, 2004
6812577 Semiconductor contact structure having wide lower portion embedded in conductive material Nov. 2, 2004
6812573 Semiconductor device and method for manufacturing the same Nov. 2, 2004
6809030 Method and structure for controlling the interface roughness of cobalt disilicide Oct. 26, 2004
6809025 Method of making a void-free aluminum film Oct. 26, 2004
6808962 Semiconductor device and method for fabricating the semiconductor device Oct. 26, 2004
6806188 Semiconductor device capable of preventing ring defect and method of manufacturing the same Oct. 19, 2004
6806187 Electrical contact for high dielectric constant capacitors and method for fabricating the same Oct. 19, 2004
6803286 Method of forming a local interconnect Oct. 12, 2004
6803287 Method for forming a semiconductor device having contact wires of different sectional areas Oct. 12, 2004
6800521 Process for the formation of RuSixOy-containing barrier layers for high-k dielectrics Oct. 5, 2004
6797600 Method of forming a local interconnect Sep. 28, 2004
6794757 Structure and method of forming an enlarged head on a plug to eliminate the enclosure requirement Sep. 21, 2004
6791149 Diffusion barrier layer for semiconductor wafer fabrication Sep. 14, 2004
6790723 Semiconductor device and method of manufacturing the same Sep. 14, 2004

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