Abstract: One or more trenches can be formed around a first portion of a semiconductor substrate, and an insulating layer can be formed under the first portion of the semiconductor substrate. The one or more trenches and the insulating layer electrically isolate the first portion of the substrate from a second portion of the substrate. The insulating layer can be formed by forming a buried layer in the substrate, such as a silicon germanium layer in a silicon substrate. One or more first trenches through the substrate to the buried layer can be formed, and open spaces can be formed in the buried layer (such as by using an etch selective to silicon germanium over silicon). The one or more first trenches and the open spaces can optionally be filled with insulative material(s). One or more second trenches can be formed and filled to isolate the first portion of the substrate.
Type:
Grant
Filed:
September 18, 2007
Date of Patent:
November 9, 2010
Assignee:
National Semiconductor Corporation
Inventors:
Craig Printy, Andre P. Labonte, Jamal Ramdani
Abstract: A method of manufacturing a recessed gate transistor includes forming a hard mask pattern over a substrate; and then forming a trench in the substrate by performing an etching process using the hard mask pattern as an etch mask; and then performing a pullback-etching process on the hard mask pattern to expose a source region in the substrate; and then forming a gate silicon layer in the trench and over the substrate including the hard mask pattern after performing the pullback-etching process; and then performing an etch-back process on the gate silicon layer to expose the hard mask pattern such that the uppermost surface of the gate silicon layer is below the uppermost surface of the hard mask pattern; and then removing the hard mask pattern; and then simultaneously etching the gate silicon layer and the exposed portion of the substrate.
Abstract: A method of fabricating a semiconductor device having a gate spacer layer with a uniform thickness wherein a gate electrode layer pattern is formed on a substrate and ion implantation processes of respectively different doses are formed on side walls of the gate electrode layer patterns in respective first and second regions of the substrate. A first gate spacer layer is formed on the gate electrode layer pattern where the ion implantation process is performed. A second gate spacer layer is formed on the first gate spacer layer.
Type:
Grant
Filed:
June 30, 2008
Date of Patent:
November 2, 2010
Assignee:
Hynix Semiconductor Inc.
Inventors:
Yong Soo Joung, Kyoung Bong Rouh, Hye Jin Seo
Abstract: First example embodiments comprise forming a stress layer over a MOS transistor (such as a LDMOS Tx) comprised of a channel and first, second and third junction regions. The stress layer creates a stress in the channel and the second junction region of the Tx. Second example embodiments comprises forming a MOS FET and at least a dummy gate over a substrate. The MOS is comprised of a gate, channel, source, drain and offset drain. At least one dummy gate is over the offset drain. A stress layer is formed over the MOS and the dummy gate. The stress layer and the dummy gate improve the stress in the channel and offset drain region.
Abstract: A bipolar transistor with very high dynamic performance, usable in an integrated circuit. The bipolar transistor has a single-crystal silicon emitter region with a thickness smaller than 50 nm. The base of the bipolar transistor is made of an SiGe alloy.
Type:
Grant
Filed:
September 6, 2006
Date of Patent:
November 2, 2010
Assignee:
STMicroelectronics S.A.
Inventors:
Alain Chantre, Bertrand Martinet, Michel Marty, Pascal Chevalier
Abstract: A field effect transistor is provided having a source region, a drain region formed in a first well region, and a channel region. The first well region is doped with doping atoms of a first conductivity type. At least a part of the channel region which extends into the first well region is doped with doping atoms of a second conductivity type, the second conductivity type being a different conductivity type than the first conductivity type.
Abstract: A damascene MIM capacitor and a method of fabricating the MIM capacitor. The MIN capacitor includes a dielectric layer having top and bottom surfaces; a trench in the dielectric layer, the trench extending from the top surface to the bottom surface of the dielectric layer; a first plate of a MIM capacitor comprising a conformal conductive liner formed on all sidewalls and extending along a bottom of the trench, the bottom of the trench coplanar with the bottom surface of the dielectric layer; an insulating layer formed over a top surface of the conformal conductive liner; and a second plate of the MIM capacitor comprising a core conductor in direct physical contact with the insulating layer, the core conductor filling spaces in the trench not filled by the conformal conductive liner and the insulating layer. The method includes forming portions of the MIM capacitor simultaneously with damascene interconnection wires.
Type:
Grant
Filed:
January 23, 2007
Date of Patent:
October 26, 2010
Assignee:
International Business Machines Corporation
Inventors:
Chih-Chao Yang, Lawrence A. Clevenger, Timothy J. Dalton, Louis C. Hsu
Abstract: An integrated circuit has a plurality of terminals for making electrical connection to the integrated circuit. At least one device is formed adjacent an outer edge of the integrated circuit. The device includes at least one metal conductor for forming an edge seal for protecting the integrated circuit during die singulation. The device is coupled to one or more functional circuits within the integrated circuit by routing the at least one metal conductor to the one or more functional circuits, the at least one device providing a reactance value to the one or more functional circuits for non-test operational use. The device may be formed as one or more capacitors or as one or more inductors. Various structures may be used for the capacitor and the inductor.
Abstract: A semiconductor structure. The semiconductor structure includes a semiconductor substrate, a trench in the semiconductor substrate. The trench comprises a side wall which includes {100} side wall surfaces and {110} side wall surfaces. The semiconductor structure further includes a blocking layer on the {100} side wall surfaces and the {110} side wall surfaces. The method further comprises the steps of removing portions of the blocking layer on the {110} side wall surfaces without removing portions of the blocking layer on the {100} side wall surfaces such that the {110} side wall surfaces are exposed to a surrounding ambient.
Type:
Grant
Filed:
April 15, 2008
Date of Patent:
October 26, 2010
Assignee:
International Business Machines Corporation
Abstract: A substrate prevented from being deformed due to thermal stress or deposition stress includes a deformation preventing layer arranged on one surface of the substrate. The substrate can include a thin film transistor arranged on one surface of the substrate and the deformation preventing layer, arranged on the another surface of the substrate, and including at least one layer.
Type:
Grant
Filed:
November 14, 2005
Date of Patent:
October 19, 2010
Assignee:
Samsung Mobile Display Co., Ltd.
Inventors:
Jae-Bon Koo, Hyun-Soo Shin, Min-Chul Suh, Yeon-Gon Mo
Abstract: A method for the formation of buried cavities within a semiconductor body envisages the steps of: providing a wafer having a bulk region made of semiconductor material; digging, in the bulk region, trenches delimiting between them walls of semiconductor material; forming a closing layer for closing the trenches in the presence of a deoxidizing atmosphere so as to englobe the deoxidizing atmosphere within the trenches; and carrying out a thermal treatment such as to cause migration of the semiconductor material of the walls and to form a buried cavity. Furthermore, before the thermal treatment is carried out, a barrier layer that is substantially impermeable to hydrogen is formed on the closing layer on top of the trenches.
Type:
Grant
Filed:
July 12, 2006
Date of Patent:
October 12, 2010
Assignee:
STMicroelectronics S.R.L.
Inventors:
Gabriele Barlocchi, Pietro Corona, Dino Faralli, Flavio Francesco Villa
Abstract: A semiconductor device has: a semiconductor substrate made of a first semiconductor material; an n-channel field effect transistor formed in the semiconductor substrate and having n-type source/drain regions made of a second semiconductor material different from the first semiconductor material; and a p-channel field effect transistor formed in the semiconductor substrate and having p-type source/drain regions made of a third semiconductor material different from the first semiconductor material, wherein the second and third semiconductor materials are different materials. The semiconductor device having n- and p-channel transistors has improved performance by utilizing stress.
Abstract: A high-performance, high I/O ball grid array substrate, designed for integrated circuit flip-chip assembly and having two patterned metal layers, comprising: an insulating layer having a first surface, a second surface and a plurality of vias filled with metal. Said first surface having one of said metal layers attached to provide electrical ground potential, and having a plurality of electrically insulated openings for outside electrical contacts. An outermost insulating film protecting the exposed surface of said ground layer, said film having a plurality of openings filled with metal suitable for solder ball attachment. Said second surface having the other of said metal layers attached, portions thereof being configured as a plurality of electrical signal lines, further portions as a plurality of first electrical power lines, and further portions as a plurality of second electrical power lines, selected signal and power lines being in contact with said vias.
Type:
Grant
Filed:
April 9, 2008
Date of Patent:
September 14, 2010
Assignee:
Texas Instruments Incorporated
Inventors:
Michael A. Lamson, Navinchandra Kalidas
Abstract: Light-emitting devices, light-emitting apparatuses, image display apparatuses and methods of manufacturing same are provided. The devices and apparatuses include a transparent electrode that is connected directly to light output surfaces so as to cover the whole areas of the light output surfaces. The transparent electrode is formed to be larger in area than the light output surfaces, and are securely electrically connected to n-type semiconductor layers including the light output surfaces.
Type:
Grant
Filed:
October 18, 2007
Date of Patent:
September 14, 2010
Assignee:
Sony Corporation
Inventors:
Toshihiko Watanabe, Masato Doi, Nobuaki Sato
Abstract: A sensor for selectively determining the presence and measuring the amount of hydrogen in the vicinity of the sensor. The sensor comprises a MEMS device coated with a nanostructured thin film of indium oxide doped tin oxide with an over layer of nanostructured barium cerate with platinum catalyst nanoparticles. Initial exposure to a UV light source, at room temperature, causes burning of organic residues present on the sensor surface and provides a clean surface for sensing hydrogen at room temperature. A giant room temperature hydrogen sensitivity is observed after making the UV source off. The hydrogen sensor of the invention can be usefully employed for the detection of hydrogen in an environment susceptible to the incursion or generation of hydrogen and may be conveniently used at room temperature.
Type:
Grant
Filed:
September 25, 2004
Date of Patent:
September 7, 2010
Assignee:
University of Central Florida Research Foundation, Inc.
Inventors:
Sudipta Seal, Satyajit V. Shukla, Lawrence Ludwig, Hyoung Cho
Abstract: A method and non-volatile memory device are provided that are characterized by ion-implantation of impurities in the sidewalls of a first electrode. The inclusion of impurities in the sidewalls eliminates geometric abnormalities, referred to herein as a bird's beak, in the first electrode, which are caused by numerous oxidation processes being performed in the overall memory fabrication process. By eliminating these geometric abnormalities, thickening of the block oxide layer proximate the area of geometric abnormalities does not occurring, resulting in a memory device capable of efficiently programming and erasing data.
Abstract: A method of forming an interconnect structure in a semiconductor device in which via holes (62) defined in a dielectric layer are filled with a filler material (64), such as a porogen material, before a further dielectric layer (66) is deposited thereover. Trenches (72) are formed in the further dielectric layer and then the filler material exposed thereby in the via holes is removed. The method provides a robust process which affords improved via and trench profile control.
Abstract: By introducing additional strain-inducing mechanisms on the basis of stress memorization techniques, the performance of NMOS transistors may be significantly increased, thereby reducing the imbalance between PMOS transistors and NMOS transistors. By amorphizing and re-crystallizing the respective material in the presence of a mask layer at various stages of the manufacturing process, a drive current improvement of up to approximately 27% has been observed, with the potential for further performance gain.
Type:
Grant
Filed:
November 9, 2007
Date of Patent:
September 7, 2010
Assignee:
Globalfoundries Inc.
Inventors:
Andy Wei, Anthony Mowry, Andreas Gehring, Maciej Wiatr
Abstract: A method of making a transistor device having silicided source/drain is provided. A gate electrode is formed on a substrate with a gate dielectric layer therebetween. A spacer is formed on sidewalls of the gate electrode. A source/drain is implanted into the substrate. A pre-amorphization implant (PAI) is performed to form an amorphized layer on the source/drain. A post-PAI annealing process is performed to repair defects formed during the PAI process. A metal silicide layer is then formed from the amorphized layer.
Abstract: A composite dielectric layer including a nitride layer over an oxide layer serves the dual function of acting as an SMT (stress memorization technique) film while an annealing operation is carried out and then remains partially intact as it is patterned to further serve as an RPO film during a subsequent silicidation process. The need to form and remove two separate dielectric material layers is obviated. The nitride layer protects the oxide layer to alleviate oxide damage during a pre-silicidation PAI (pre-amorphization implant) process thereby preventing oxide attack during a subsequent HF dip operation and preventing nickel silicide spiking through the attacked oxide layer during silicidation.