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

Icon_funbox Quotables

"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "

Mark Twain ; Christmas greetings, 1890

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/E29.278 - With LDD structure or extension or offset region or characterized by doping profile (EPO)


Subclass of Class 257 - Active solid-state devices (e.g., transistors, solid-state diodes)
Definition: This subclass is substantially the same in scope as ECLA
No. of patents: 452
Last issue date: 10/28/2008


1                      
NumberTitleIssue Date
7442956Organic EL device and electronic apparatus
To provide an organic EL device capable of making uniform a dry speed of a liquid material coated in a display area. There is provided an organic EL device in which a plurality of pixels XR, XG, XB is arranged in an effective display...
10/28/2008
7417252Flat panel display
The present invention discloses a high-speed flat panel display with a long lifetime, wherein thin film transistors in a pixel array portion in which a plurality of pixels are arranged and a driving circuit portion for driving the pixels of the pixel array portion, ...
08/26/2008
7410842Method for fabricating thin film transistor of liquid crystal display device
A method for fabricating a thin film transistor for an LCD device is presented that uses six mask processes. Portions of a semiconductor layer formed on a substrate are doped with first and second impurities in different regions. A conductive layer is deposited and ...
08/12/2008
7411215Display device and method of fabricating the same
To achieve promotion of stability of operational function of display device and enlargement of design margin in circuit design, in a display device including a pixel portion having a semiconductor element and a plurality of pixels provided with pixel electrodes conn...
08/12/2008
7396765Method of fabricating a liquid crystal display device
A method of fabricating a liquid crystal display device according to an embodiment of the present invention includes forming first and second conductive layers on a substrate, wherein the first layer is transparent; patterning the second conductive layer and the fir...
07/08/2008
7365402LDMOS transistor
An LDMOS semiconductor transistor structure comprises a substrate having an epitaxial layer of a first conductivity type, a source region extending from a surface of the epitaxial layer of a second conductivity type, a lightly doped drain region within the epitaxial...
04/29/2008
7352003Electro-optical device having thin film transistor with LDD region
An electro-optical device, such as a camera, includes a display unit having a thin film transistor including a source region, a drain region, a channel region formed between the source and drain regions, and a LDD region formed between the channel region and at leas...
04/01/2008
7348599Semiconductor device and manufacturing method thereof
A p channel TFT of a driving circuit has a single drain structure and its n channel TFT, a GOLD structure or an LDD structure. A pixel TFT has the LDD structure. A pixel electrode disposed in a pixel portion is connected to the pixel TFT through a hole bored in at l...
03/25/2008
7335540Low temperature polysilicon thin film transistor and method of manufacturing the same
A low temperature polysilicon thin film transistor and method of manufacturing the same is provided. The low temperature polysilicon thin film transistor comprises a channel region. Among others, one feature of the method according to the present invention is the pe...
02/26/2008
7321151Semiconductor device and method of fabricating the same
An extension region is formed by ion implantation under masking by a gate electrode, and then a substance having a diffusion suppressive function over an impurity contained in a source-and-drain is implanted under masking by the gate electrode and a first sidewall s...
01/22/2008
7291523Method of manufacturing a semiconductor device
After crystallization of a semiconductor film is performed by irradiating first laser light (energy density of 400 to 500 mJ/cm2) in an atmosphere containing oxygen, an oxide film formed by irradiating the first laser light is removed. It is next performe...
11/06/2007
7235843Implanting carbon to form P-type source drain extensions
The use of a carbon implant, in addition to the conventional fluorine implant, may significantly reduce the transient enhanced diffusion in P-type source drain extension regions. As a result, resistivity may be reduced, and dopant density may be increased, increasin...
06/26/2007
7221021Method of forming high voltage devices with retrograde well
A high voltage device with retrograde well is disclosed. The device comprises a substrate, a gate region formed on the substrate, and a retrograde well placed in the substrate next to the gate region, wherein the retrograde well reduces a dopant concentration on the...
05/22/2007
7166893Semiconductor integrated circuit device
A MISFET capable of a high speed operation includes a metal silicide layer in a high concentration region aligned with a gate side wall layer on a self-alignment basis. A MISFET which can be driven at a high voltage includes an LDD portion having a width greater tha...
01/23/2007
7132690Multi-channel type thin film transistor and method of fabricating the same
A multi-channel type thin film transistor includes a gate electrode over a substrate extending along a first direction, a plurality of active layers parallel to and spaced apart from each other extending along a second direction crossing the first direction, and sou...
11/07/2006
7126190Self-aligned gate and method
A semiconductor structure includes a silicon substrate of a first conductivity type including wells of a second conductivity type formed on a surface thereof. The wells may be laterally isolated by shallow trench isolation. Transistors are formed in the wells by fir...
10/24/2006
7119408Semiconductor device and method for fabricating the same
A semiconductor device of the present invention includes, as a peripheral MIS transistor 25b, a gate insulating film 13b and a gate electrode 14b provided above an active region 10b, first and second sidewalls ...
10/10/2006
7109108Method for manufacturing semiconductor device having metal silicide
A thin film transistor device reduced substantially in resistance between the source and the drain by incorporating a silicide film, which is fabricated by a process comprising forming a gate insulator film and a gate contact on a silicon substrate, anodically oxidi...
09/19/2006
7084458Semiconductor device having triple LDD structure and lower gate resistance formed with a single implant process
A method of fabricating a semiconductor device having a triple LDD (lateral diffused dopants) structure is disclosed. This fabrication method requires a single implant process, leading to reduction in fabrication costs and fabrication time. Moreover, this fabricatio...
08/01/2006
6703265Semiconductor device and method of manufacturing the same
The orientation ratio of a crystalline semiconductor film obtained by crystallizing an amorphous semiconductor film through heat treatment and irradiation of intense light such as laser light, ultraviolet rays, or infrared rays is enhanced, and a semicond...
03/09/2004
6700134Semiconductor device provided with semiconductor circuit consisting of semiconductor element and method of manufacturing the same
The present invention provides a semiconductor device and a method of manufacturing the same, the device being provided with a semiconductor circuit consisting of a semiconductor element that is capable of improving characteristics of a TFT and has unifor...
03/02/2004
6699738Semiconductor doping method and liquid crystal display device fabricating method using the same
A semiconductor doping method includes steps of forming an insulation layer on a substrate, forming a semiconductor layer on the insulation layer, forming a photoresist layer on the insulation layer, patterning the photoresist layer to provide a portion o...
03/02/2004
6699758Semiconductor device and method for manufacturing the same
The first insulating film (81) and the second insulating film (82) are so layered in this order on a SOI layer (3) as to cover a gate electrode (6) and a side wall (5) and dry-etched with different etching selection ratio (the etching rate of the second i...
03/02/2004
6693257Laser irradiation apparatus, laser irradiation method, and method for manufacturing a semiconductor device
YAG laser can simultaneously emit a plurality of laser beams having different wavelengths from each other. By simultaneously irradiating the laser beams having different wavelengths from each other to a same region of a non-single crystal semiconductor fi...
02/17/2004
6693258Process for producing thin film semiconductor device and laser irradiation apparatus
A polycrystalline thin film of good quality is obtained by improving a crystallization process of a semiconductor thin film using laser light. After conducting a film forming step of forming a non-single crystal semiconductor thin film on a surface of a s...
02/17/2004
6693044Semiconductor device and method of manufacturing the same
A semiconductor device, which uses a crystalline silicon film having high crystallinity and a flat surface with few ridges and has high characteristics, and a method of manufacturing the semiconductor device are provided. According to the manufacturing me...
02/17/2004
6690034Light emitting device
There is provided a light emitting device including a TFT having a high driving capacity (on current) and high reliability in a driver circuit and a TFT in which an off current is reduced in a pixel portion. In manufacturing the TFTs, after the TFT having...
02/10/2004
6690063Thin film semiconductor integrated circuit and method for forming the same
There is provided an aluminum gate type thin film transistor integrated circuit having a matrix region and a region in which driving circuits thereof are formed wherein impurity regions are selectively formed on a semiconductor thin film in the form of is...
02/10/2004
6682964TFT for LCD device and fabrication method thereof
An object of the present invention is to crystallize and activate the doped amorphous semiconductor layer at the same time. It is also an object to provide the TFT with good electrical connection between the source or drain electrodes and the semiconducto...
01/27/2004
6677189Method for forming polysilicon thin film transistor with a self-aligned LDD structure
A polysilicon thin film transistor with a self-aligned LDD structure has a polysilicon layer formed on a transparent insulating substrate. The polysilicon layer consists of a channel region, an LDD structure on two sides of the channel region, and a sourc...
01/13/2004
6677611Thin film circuit
A practical operational amplifier circuit is formed using thin film transistors. An operational amplifier circuit is formed by thin film transistors formed on a quartz substrate wherein 90% or more of n-channel type thin film transistors have mobility at ...
01/13/2004
6677221Semiconductor device and the fabricating method therefor
In a semiconductor device employing a glass substrate, the object of the present invention is to provide a high performance semiconductor device with a large screen at low cost, which prevents the semiconductor device from being contaminated by impurities...
01/13/2004
6677646Method and structure of a disposable reversed spacer process for high performance recessed channel CMOS
A high-performance recessed channel CMOS device including an SOI layer having a recessed channel region and adjoining extension implant regions and optional halo implant regions; and at least one gate region present atop the SOI layer and a method for fab...
01/13/2004
6673659Semiconductor device and method of producing the same
A base film is formed for the TFTs in order to prevent diffusion of impurities from the glass substrate into the active layer, to maintain stability in the characteristics such as Vth and S-value of the TFTs and to maintain enhanced productivity. A film i...
01/06/2004
6674136Semiconductor device having driver circuit and pixel section provided over same substrate
In a manufacturing method of an active matrix type liquid crystal display device, a semiconductor device having good TFT characteristics is realized. LDD regions of a driver circuit NTFT and LDD regions of a pixel section NTFT are given different impurity...
01/06/2004
6670225Method of manufacturing a semiconductor device
After a catalyst element is introduced into an amorphous silicon film, the amorphous silicon film is converted into a crystalline silicon film by a heat treatment and laser irradiation. After a resist mask is formed on the crystalline silicon film, boron ...
12/30/2003
6670641Thin film transistor, method of manufacturing the same and thin film transistor liquid crystal display device
A thin film transistor (TFT) is provided with a precisely, lightly doped drain (LDD) structure formed on a substrate of insulators, such as a glass sheet. A method of making the TFT and a liquid crystal display device with the same are disclosed. The TFT ...
12/30/2003
6667517Electrooptical device and electronic device
An electrooptical device including a semiconductor device which is formed in a semiconductor layer on an insulating layer in such a manner that floating substrate effects which are essential in a SOI structure is suppressed without reducing the aperture r...
12/23/2003
6661096Wiring material semiconductor device provided with a wiring using the wiring material and method of manufacturing thereof
By using a high purity target as a target, using a single gas, argon (Ar), as a sputtering gas, setting the substrate temperature at 300° C. or less, setting the sputtering power from 1 kW to 9 kW, and setting the sputtering gas pressure from 1.0 Pa to 3...
12/09/2003
6656779Semiconductor apparatus having semiconductor circuits made of semiconductor devices, and method of manufacture thereof
A semiconductor device comprises a first insulating film provided over a substrate and heat-treated, a second insulating film provided over the first insulating film, and a semiconductor film provided over the second insulating film, the second insulating...
12/02/2003
1                      
 
Sign InRegister
Username  
Password   
forgot password?