U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5926874

Automatic Bed Maker

An automatic bed maker which uses the expansion of inflatable bladder to straighten, align, and tuck-in bed-cover assembly.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 257/E29.121 - Source or drain electrode in groove (EPO)


Subclass of Class 257 - Active solid-state devices (e.g., transistors, solid-state diodes)
Definition: This subclass is indented under subclass E29.116. This
No. of patents: 90
Last issue date: 04/17/2007


1      
NumberTitleIssue Date
7205657Complimentary lateral nitride transistors
A semiconductor device which includes a laterally extending stack of laterally adjacent conductive semiconductor regions formed over a support surface of a substrate, and a method for fabricating the device. ...
04/17/2007
7126193Metal-oxide-semiconductor device with enhanced source electrode
An MOS device is formed including a semiconductor layer of a first conductivity type, a first source/drain region of a second conductivity type formed in the semiconductor layer, and a second source/drain region of the second conductivity type formed in the semicond...
10/24/2006
6696323Method of manufacturing semiconductor device having trench filled up with gate electrode
In a semiconductor device, a p-type base region is provided in an n- -type substrate to extend from a principal surface of the substrate in a perpendicular direction to the principal surface. An n+ -type source region extends in the ...
02/24/2004
6677641Semiconductor structure with improved smaller forward voltage loss and higher blocking capability
A semiconductor device is disclosed. The semiconductor device includes one or more charge control electrodes a plurality of charge control electrodes. The one or more charge control electrodes may control the electric field within the drift region of a se...
01/13/2004
6677212Elevated source/drain field effect transistor and method for making the same
A gate oxide film (23), a gate electrode (24) and a gate cap insulating film (25) are stacked on an active region of a p-type semiconductor substrate (21), and an insulating side wall (29) is formed, followed by BF2 ion implantation. Thus, a su...
01/13/2004
6674135Semiconductor structure having elevated salicided source/drain regions and metal gate electrode on nitride/oxide dielectric
A semiconductor structure an a process for its manufacture. First and second gate dielectric layers are formed on a semiconductor substrate between nitride spacers, and a metal gate electrode is formed on the gate dielectric layers. Lightly-doped drain re...
01/06/2004
6670253Fabrication method for punch-through defect resistant semiconductor memory device
A semiconductor device and a fabrication method thereof which can, for example, prevent a punch-through from occurring by forming oxide spacers around source/drain regions in a semiconductor substrate instead of forming a conventional halo ion implanting ...
12/30/2003
6667516RF LDMOS on partial SOI substrate
In the prior art LDMOSFET devices capable of handling high power have been made by locating the source contact on the bottom surface of the device, allowing for good heat sinking, with connection to the source region being made through a sinker. However, ...
12/23/2003
6664163Low on-resistance trench lateral MISFET with better switching characteristics and method for manufacturing same
A high-voltage and low on-resistance semiconductor device incorporates a trench structure that provides improved switching characteristics. In a preferred embodiment, a Trench Lateral Power MISFET is provided having a gate, channel and drift regions that ...
12/16/2003
6639274Semiconductor device
A trench lateral MOSFET including a gate region where gate polysilicon is lead out to a substrate surface, and an active region where electric current is driven in a MOSFET operation, and with a trench width, in the gate region Wg, being narrower than a t...
10/28/2003
6633064Compensation component with improved robustness
The compensation component is formed with compensation regions in a semiconductor between two electrodes. By varying the second field and/or the first field, a location of a maximum field strength is displaced into the center of the compensation regions b...
10/14/2003
6624470Semiconductor device and a method for manufacturing same
A semiconductor device, and method for manufacturing the same, manufactured by a simpler process, compared to a conventional trench lateral power MOSFET for a withstand voltage of 80 V, having a smaller device pitch and lower on-resistance per unit area a...
09/23/2003
6624045Thermal conducting trench in a seminconductor structure and method for forming the same
The invention relates to a method of forming a trench filled with a thermally conducting material in a semiconductor substrate. In one embodiment, the method includes filling a portion of the trench with a thermally conducting material and patterning a co...
09/23/2003
6620663Self-aligned copper plating/CMP process for RF lateral MOS device
A method of fabricating an RF lateral MOS device, comprising the following steps. A substrate having a gate oxide layer formed thereover is provided. A first layer of polysilicon is formed over the gate oxide layer. A second layer of material is formed ov...
09/16/2003
6620667Method of making a HF LDMOS structure with a trench type sinker
A method of forming an HF power device. The method includes forming a semiconductor layer as a first conductive type on a semiconductor substrate; etching the semiconductor layer forming a first trench; doping an impurity in the neighborhood of the first ...
09/16/2003
6617640Field-effect-controllable semiconductor configuration with a laterally extending channel zone
A semiconductor configuration includes a semiconductor body with a first connection zone of a first conductivity type, a second connection zone of the first conductivity type, a channel zone of the first conductivity type, and at least one control electro...
09/09/2003
6605841Method for producing an electrode by means of a field effect controllable semiconductor component and field-effect-controllable semiconductor component
A field-effect-controllable semiconductor component and a method for fabricating an electrode of the component includes a semiconductor body having a first zone of a first conduction type, a second zone of a second conduction type disposed above the first...
08/12/2003
6541317Polysilicon doped transistor
Steep concentration gradients are achieved in semiconductor device of small sizes by using implanted polycrystalline material such as polysilicon as a solid diffusion source. Rapid diffusion of impurities along grain boundaries relative to diffusion rates...
04/01/2003
6518155Device structure and method for reducing silicide encroachment
A semiconductor device having a novel spacer structure and method of fabrication. The present invention describes a semiconductor device which has an electrode with a first thickness. A silicide layer having a second thickness is formed on the electrode. ...
02/11/2003
6506651Semiconductor device and manufacturing method thereof
There are provide a semiconductor device capable of increasing the operating speed of MOS transistors and improving current driving capability, and a method of manufacturing such a semiconductor device. A semiconductor device comprises a silicon substrate...
01/14/2003
6483158Semiconductor memory device and fabrication method therefor
A semiconductor device and a fabrication method thereof which can, for example, prevent a punch-through from occurring by forming oxide spacers around source/drain regions in a semiconductor substrate instead of forming a conventional halo ion implanting ...
11/19/2002
6440806Method for producing metal-semiconductor compound regions on semiconductor devices
A method of making metal-semiconductor compound regions, such as silicide regions, includes forming a metal layer on a surface of a semiconductor device, performing a first annealing to form metal-semiconductor regions, and depositing additional metal wit...
08/27/2002
6403482Self-aligned junction isolation
Transistors having self-aligned dielectric layers under the source/drain contacts are formed by constructing transistors up to the LDD implant; etching STI oxide selective to Si and nitride to form a self-aligned contact recess; depositing an insulating l...
06/11/2002
6373119Semiconductor device and method of manufacturing the same
A semiconductor device including a trench element separation structure and adapted to a high degree of integration without having crystal defects produced in a semiconductor substrate, and a method of manufacturing the same. The semiconductor device inclu...
04/16/2002
6352903Junction isolation
In a bulk silicon process, an insulating layer is placed under the portion of the source and drain used for contacts, thereby reducing junction capacitance. The processing involves a smaller than usual transistor area that is not large enough to hold the ...
03/05/2002
6346729Pseudo silicon on insulator MOSFET device
A process for forming a MOSFET device, featuring a heavily doped source/drain region, isolated from a semiconductor substrate, via use of a thin silicon oxide layer, has been developed. After formation of a lightly doped source/drain region, an opening is...
02/12/2002
6323506Self-aligned silicon carbide LMOSFET
A lateral metal-oxide-semiconductor field effect transistor (LMOSFET) having a self-aligned gate, includes a first layer of SiC semiconductor material having a p-type conductivity, and a second layer of SiC semiconductor material having an n-type conducti...
11/27/2001
6274894Low-bandgap source and drain formation for short-channel MOS transistors
A transistor having source and drain regions which include lower-bandgap portions and a method for making the same are provided. A gate conductor is formed over a gate dielectric on a semiconductor substrate. The gate conductor is covered on all sides wit...
08/14/2001
6222254Thermal conducting trench in a semiconductor structure and method for forming the same
The invention relates to a method of forming a trench filled with a thermally conducting material in a semiconductor substrate. In one embodiment, the method includes filling a portion of the trench with a thermally conducting material and patterning a co...
04/24/2001
6222233Lateral RF MOS device with improved drain structure
The lateral RF MOS device having a conducive plug in the source region and an oxide plug in the drain region is disclosed. The oxide plug in the drain region reduces the drain-source capacitance, improves the matching ability to the outside circuitry, and...
04/24/2001
6180441Bar field effect transistor
A field effect transistor is formed across a one or more trenches (26) or bars (120), thereby increasing the effective width of the channel region and the current-carrying capacity of the device....
01/30/2001
6124614Si/SiGe MOSFET and method for fabricating the same
The present invention relates to a metal silicon field effect transistor (MOSFET), and more particularly to a MOSFET, using a Si or SiGe channel to effectively adjust threshold voltage. The transistor according to the present invention can solve the probl...
09/26/2000
6121100Method of fabricating a MOS transistor with a raised source/drain extension
A method of forming a MOS transistor. According to the method of the present invention, a pair of source/drain contact regions are formed on opposite sides of a gate electrode. After forming the pair of source/drain contact regions, semiconductor material...
09/19/2000
6100147Method for manufacturing a high performance transistor with self-aligned dopant profile
A process for manufacturing a high performance transistor with self-aligned dopant profile. The process involves forming a source/drain mask pattern on a substrate. With a first implant material, unmasked portions of the substrate are doped to form source...
08/08/2000
6093612Metal oxide silicon field effect transistor (MOSFET) and fabrication method of same
A Metal Oxide Silicon Field Effect Transistor (MOSFET) and method includes a gate electrode pattern formed over a gate insulation layer on a semiconductor substrate. A pair of first impurity regions are respectively formed in an upper side surface of the ...
07/25/2000
6087706Compact transistor structure with adjacent trench isolation and source/drain regions implanted vertically into trench walls
A semiconductor integrated circuit with a transistor formed within an active area defined by side-walls of a shallow trench isolation region, and method of fabrication thereof, is described. A gate electrode is formed over a portion of the active area and...
07/11/2000
6071783Pseudo silicon on insulator MOSFET device
A process for forming a MOSFET device, featuring a heavily doped source/drain region, isolated from a semiconductor substrate, via use of a thin silicon oxide layer, has been developed. After formation of a lightly doped source/drain region, an opening is...
06/06/2000
6072215Semiconductor device including lateral MOS element
Disclosed is a semiconductor device including a lateral MOS element which comprises a p-type silicon substrate; a first semiconductor layer of an n-type constituting a drift region; a second semiconductor layer of the p-type selectively provided in the fi...
06/06/2000
6064099Layout of well contacts and source contacts of a semiconductor device
There is described a semiconductor device intended to increase a degree of integration of transistor without impairing a desired element characteristic. An n-type source region and an n-type drain region are formed in a p-well which acts as a substrate re...
05/16/2000
6051472Semiconductor device and method of producing the same
A semiconductor device of the present invention and using trench isolation includes contact holes. Spacers are formed on the shoulder portions of a device region exposed in the contact holes. To form the spacers, a silicon oxide film is formed and then et...
04/18/2000
1      
 
Sign InRegister
Username  
Password   
forgot password?