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Class Information
Number: 257/618
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Physical configuration of semiconductor (e.g., mesa, bevel, groove, etc.)
Description: Subject matter wherein the device has a particular physical form, such as a mesa or bevel or groove.


Sub-classes under this class:

Class Number Class Name Patents
257/622 Groove 604
257/623 Mesa structure (e.g., including undercut or stepped mesa configuration or having constant slope taper) 390
257/621 With electrical contact in hole in semiconductor (e.g., lead extends through semiconductor body) 244
257/620 With peripheral feature due to separation of smaller semiconductor chip from larger wafer (e.g., scribe region, or means to prevent edge effects such as leakage current at peripheral chip separation area) 441
257/627 With specified crystal plane or axis 330
257/619 With thin active central semiconductor portion surrounded by thicker inactive shoulder (e.g., for mechanical support) 118


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

Patent Number Title Of Patent Date Issued
7417297 Film or layer of semiconducting material, and process for producing the film or layer Aug. 26, 2008
7414291 Semiconductor device and method of manufacturing the same Aug. 19, 2008
7413965 Method of manufacturing a thin-film circuit substrate having penetrating structure, and protecting adhesive tape Aug. 19, 2008
7411273 Nitride semiconductor substrate Aug. 12, 2008
7411304 Semiconductor interconnect having conductive spring contacts Aug. 12, 2008
7405138 Manufacturing method of stack-type semiconductor device Jul. 29, 2008
7402907 Semiconductor device and manufacturing method thereof Jul. 22, 2008
7402867 Semiconductor device Jul. 22, 2008
7387974 Methods for providing gate conductors on semiconductors and semiconductors formed thereby Jun. 17, 2008
7387951 Method of dicing semiconductor wafer into chips, and apparatus using this method Jun. 17, 2008
7388258 Sectional field effect devices Jun. 17, 2008
7381627 Dual wired integrated circuit chips Jun. 3, 2008
7374618 Group III nitride semiconductor substrate May. 20, 2008
7372150 Semiconductor wafer having identification indication May. 13, 2008
7368763 Semiconductor device and manufacturing method thereof May. 6, 2008
7365413 Reduced power distribution mesh resistance using a modified swiss-cheese slotting pattern Apr. 29, 2008
7361991 Closed air gap interconnect structure Apr. 22, 2008
7355208 Nitride-based semiconductor element and method of forming nitride-based semiconductor Apr. 8, 2008
7355266 Semiconductor wafer test system Apr. 8, 2008
7352037 Semiconductor device and random access memory having single gate electrode corresponding to a pair of channel regions Apr. 1, 2008
7345353 Silicon carrier having increased flexibility Mar. 18, 2008
7342295 Porogen material Mar. 11, 2008
7335593 Method of fabricating semiconductor device Feb. 26, 2008
7335942 Field effect transistor sensor Feb. 26, 2008
7332756 Damascene gate structure with a resistive device Feb. 19, 2008
7332755 Transistor structure of memory device and method for fabricating the same Feb. 19, 2008
7332752 Optoelectronic circuit employing a heterojunction thyristor device to convert a digital optical signal to a digital electrical signal Feb. 19, 2008
7327013 Stencil mask with charge-up prevention and method of manufacturing the same Feb. 5, 2008
7312515 Semiconductor apparatus including a thin-metal-film resistor element and a method of manufacturing the same Dec. 25, 2007
7294916 Semiconductor device with a thinned semiconductor chip and method for producing the thinned semiconductor chip Nov. 13, 2007
7288828 Metal oxide semiconductor transistor device Oct. 30, 2007
7285477 Dual wired integrated circuit chips Oct. 23, 2007
7285483 Coated semiconductor wafer, and process and apparatus for producing the semiconductor wafer Oct. 23, 2007
7282104 Method of fixing a sealing object to a base object Oct. 16, 2007
7276750 Semiconductor device having trench capacitor and fabrication method for the same Oct. 2, 2007
7268382 DRAM cells Sep. 11, 2007
7259443 Methods for forming patterns on a filled dielectric material on substrates Aug. 21, 2007
7259425 Tri-gate and gate around MOSFET devices and methods for making same Aug. 21, 2007
7256473 Composite structure with high heat dissipation Aug. 14, 2007
7256476 Notched compound semiconductor wafer Aug. 14, 2007
7256478 Notched compound semiconductor wafer Aug. 14, 2007
7256477 Notched compound semiconductor wafer Aug. 14, 2007
7256420 Semiconductor device and manufacturing method thereof Aug. 14, 2007
7253027 Method of manufacturing hybrid integrated circuit device Aug. 7, 2007
7253500 Semiconductor wafer and a method for manufacturing a semiconductor wafer Aug. 7, 2007
7250645 Reversed T-shaped FinFET Jul. 31, 2007
7245002 Semiconductor substrate having a stepped profile Jul. 17, 2007
7230315 Integrated chemical microreactor with large area channels and manufacturing process thereof Jun. 12, 2007
7230310 Super-junction voltage sustaining layer with alternating semiconductor and High-K dielectric regions Jun. 12, 2007
7230274 Reduction of carrot defects in silicon carbide epitaxy Jun. 12, 2007

1 2 3 4 5 6 7 8 9


 
 
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