Physical configuration of semiconductor (e.g., mesa, bevel, groove, etc.) > Patents

Resources

Home

Browse by:

Browse by Category: Main > Physics

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	611
257/623	Mesa structure (e.g., including undercut or stepped mesa configuration or having constant slope taper)	393
257/621	With electrical contact in hole in semiconductor (e.g., lead extends through semiconductor body)	252
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)	451
257/627	With specified crystal plane or axis	339
257/619	With thin active central semiconductor portion surrounded by thicker inactive shoulder (e.g., for mechanical support)	120

Patents under this class:

1 2 3 4 5 6 7 8 9 10

Patent Number	Title Of Patent	Date Issued
5554875	Semiconductor device with force and/or acceleration sensor	Sep. 10, 1996
5554860	Resonant tunneling transistor noise generator	Sep. 10, 1996
5548149	Varying the thickness of the surface silicon layer in a silicon-on-insulator substrate	Aug. 20, 1996
5539246	Microelectronic integrated circuit including hexagonal semiconductor "gate " device	Jul. 23, 1996
5532509	Semiconductor inverter layout having improved electromigration characteristics in the output node	Jul. 2, 1996
5532510	Reverse side etching for producing layers with strain variation	Jul. 2, 1996
5532899	Voltage protection structure for semiconductor devices	Jul. 2, 1996
5525817	Bipolar transistor	Jun. 11, 1996
5517052	Deep-diffused phototransistor	May. 14, 1996
5514903	Compound semiconductor single-crystalline substrate for liquid phase epitaxial growth	May. 7, 1996
5510640	Semiconductor device and process for preparing the same	Apr. 23, 1996
5506435	Static ram having an active area with a tapered bottom surface	Apr. 9, 1996
5485025	Depleted extrinsic emitter of collector-up heterojunction bipolar transistor	Jan. 16, 1996
5475243	Semiconductor device including an IGBT and a current-regenerative diode	Dec. 12, 1995
5475251	Secure non-volatile memory cell	Dec. 12, 1995
5449932	Field effect transistor having gate and source regions in recesses	Sep. 12, 1995
5432381	Manufacturing method for a self-aligned through hole and semiconductor structure	Jul. 11, 1995
5430325	Semiconductor chip having dummy pattern	Jul. 4, 1995
5414285	Semiconductor device having cladding layer and process for production of the same	May. 9, 1995
5399899	Bipolar epitaxial cascode with low-level base connection	Mar. 21, 1995
5397907	Field effect transistor and fabricating method thereof	Mar. 14, 1995
5389810	Semiconductor device having at least one symmetrical pair of MOSFETs	Feb. 14, 1995
5387808	Heterojunction bipolar transistors with sloped regions	Feb. 7, 1995
5386139	Semiconductor light emitting element with improved structure of groove therein	Jan. 31, 1995
5381047	Semiconductor integrated circuit having multiple silicon chips	Jan. 10, 1995
5378912	Lateral semiconductor-on-insulator (SOI) semiconductor device having a lateral drift region	Jan. 3, 1995
5378914	Semiconductor device with a particular source/drain and gate structure	Jan. 3, 1995
5376818	Large area P-N junction devices formed from porous silicon	Dec. 27, 1994
5373181	Sensor for sensing fingerpaints and method for producing the sensor	Dec. 13, 1994
5373184	SOI/semiconductor heterostructure fabrication by wafer bonding	Dec. 13, 1994
5341024	Method of increasing the layout efficiency of dies on a wafer, and increasing the ratio of I/O area to active area per die	Aug. 23, 1994
5319240	Three dimensional integrated device and circuit structures	Jun. 7, 1994
5296745	Semiconductor device having a moisture barrier around periphery of device	Mar. 22, 1994
5296733	Hetero junction bipolar transistor with improved electrode wiring contact region	Mar. 22, 1994
5293512	Semiconductor device having a groove type isolation region	Mar. 8, 1994
5293061	Semiconductor device having an isolation layer region on the side wall of a groove	Mar. 8, 1994
5291042	Multi-stage amplifier device and method for producing the same	Mar. 1, 1994
5289019	Insulated gate bipolar transistor	Feb. 22, 1994
5281847	Groove structure for isolating elements comprising a GTO structure	Jan. 25, 1994
5278438	Electrically erasable and programmable read-only memory with source and drain regions along sidewalls of a trench structure	Jan. 11, 1994
5269882	Method and apparatus for fabrication of thin film semiconductor devices using non-planar, exposure beam lithography	Dec. 14, 1993
5262655	Thin film field effect device having an LDD structure and a method of manufacturing such a device	Nov. 16, 1993
5256889	Semiconductor rectifying diode with PN geometry	Oct. 26, 1993
RE34400	Method for fabricating isolation region in semiconductor devices	Oct. 5, 1993
5243200	Semiconductor device having a substrate recess forming semiconductor regions	Sep. 7, 1993
5233218	Semiconductor wafer and process for producing same	Aug. 3, 1993
5233219	Three-dimensional semiconductor device structure	Aug. 3, 1993
5215623	Blanking aperture array and method of producing same	Jun. 1, 1993
5214496	Semiconductor memory	May. 25, 1993
5210601	Compression contacted semiconductor device and method for making of the same	May. 11, 1993