Patents Issued in February 22, 2007
-
Publication number: 20070040183Abstract: An object of the present invention is to provide a light-permeable electrode for use in a gallium nitride-based compound semiconductor light-emitting device, the electrode having improved light permeability and contact resistance. The inventive electrode comprises a light-permeable first layer which is in contact with a surface of a p-contact layer in a gallium nitride-based compound semiconductor light-emitting device and which is capable of providing ohmic contact, and a second layer which is in contact with a part of a surface of said p-contact layer, wherein the first layer comprises a metal, or an alloy of two or more metals, selected from a first group consisting of Au, Pt, Pd, Ni, Co, and Rh, and the second layer comprises an oxide of at least one metal selected from a second group consisting of Ni, Ti, Sn, Cr, Co, Zn, Cu, Mg, and In.Type: ApplicationFiled: September 21, 2004Publication date: February 22, 2007Inventors: Hideki Tomozawa, Mineo Okuyama, Noritaka Muraki, Soichiro Masuyama
-
Publication number: 20070040184Abstract: According to an embodiment of the invention, there is provided a semiconductor device comprising: a semiconductor element having a first main electrode, a second main electrode and a control electrode, a current flowing between the first and second main electrodes being controlled by a control signal which is input between the control electrode and the second main electrode; and a capacitor formed by providing an insulating layer between the second main electrode and the control electrode of the semiconductor element.Type: ApplicationFiled: October 30, 2006Publication date: February 22, 2007Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Koichi Sugiyama, Tomoki Inoue
-
Publication number: 20070040185Abstract: According to an embodiment of the invention, there is provided a semiconductor device comprising: a semiconductor element having a first main electrode, a second main electrode and a control electrode, a current flowing between the first and second main electrodes being controlled by a control signal which is input between the control electrode and the second main electrode; and a capacitor formed by providing an insulating layer between the second main electrode and the control electrode of the semiconductor element.Type: ApplicationFiled: October 30, 2006Publication date: February 22, 2007Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Koichi Sugiyama, Tomoki Inoue
-
Publication number: 20070040186Abstract: A semiconductor chip packaging structure comprising a dielectric film having one or more through holes aligned with the one or more contact pads of at least one power semiconductor chip. A patterned electrically conductive layer adjacent to the dielectric film has one or more electrically conductive posts which extend through the one or more though holes aligned with the contact pads to electrically couple the conductive layer to the contact pads. In certain embodiments, one or more air gaps may be formed between the dielectric film and the active surface of the at least one power semiconductor chip. Methods for fabricating the semiconductor chip packaging structure are also disclosed.Type: ApplicationFiled: August 17, 2005Publication date: February 22, 2007Inventors: Raymond Fillion, Richard Beaupre, Ahmed Elasser, Robert Wojnarowski, Charles Korman
-
Publication number: 20070040187Abstract: There is a need for providing a technology capable of decreasing on-resistance of a power transistor in a semiconductor device that integrates the power transistor and a control integrated circuit into a single semiconductor chip. There is another need for providing a technology capable of reducing a chip size of a semiconductor device. A semiconductor chip includes a power transistor formation region to form a power transistor, a logic circuit formation region to form a logic circuit, and an analog circuit formation region to form an analog circuit. A pad is formed in the power transistor formation region. The pad and a lead are connected through a clip whose cross section is larger than that of a wire. On the other hand, a bonding pad is connected through the wire 29.Type: ApplicationFiled: August 14, 2006Publication date: February 22, 2007Inventors: Nobuya Koike, Tsukasa Matsushita, Hiroshi Sato, Keiichi Okawa, Atsushi Nishikizawa
-
Publication number: 20070040188Abstract: An integrated circuit chip includes a buffer layer, an underlying layer, a dielectric layer, a hole, and barrier layer. The buffer layer is over the underlying layer. The dielectric layer is over the buffer layer. The hole is formed in and extending through the dielectric layer and the buffer layer, and opens to the underlying layer. The hole includes a buffer layer portion at the buffer layer and a dielectric layer portion at the dielectric layer. At least part of the buffer layer portion of the hole has a larger cross-section area than a smallest cross-section area of the dielectric layer portion of the hole. The conformal barrier layer covers surfaces of the dielectric layer and the buffer layer in the hole. The hole is a via hole or a contact hole that is later filled with a conductive material to form a conductive via or a conductive contact.Type: ApplicationFiled: August 19, 2005Publication date: February 22, 2007Inventors: Ming-Huan Tsai, Fang-Cheng Chen, Chao-Cheng Chen, Syun-Ming Jang
-
Publication number: 20070040189Abstract: A bi-directional switch has at least one first controllable semiconductor component with a first input contact, a first output contact, and a first control contact, and at least one second controllable semiconductor component with a second input contact, a second output contact, and a second control contact. The first input contact of the first semiconductor component and the second input contact of the second semiconductor component are interconnected in an electrically conducting manner, and the first control contact of the first semiconductor component and the second control contact of the second semiconductor component are interconnected in an electrically conducting manner while the first output contact of the first semiconductor component and the second output contact of the second semiconductor component are electrically insulated from each other. The semiconductor components are disposed on a common substrate that is provided with an electrically conducting coating.Type: ApplicationFiled: March 18, 2004Publication date: February 22, 2007Inventors: Stephan Bolz, Rainer Knorr, Norbert Seliger
-
Publication number: 20070040190Abstract: An ink jet recording head is provided with one heat generating member in each of ink flow paths, and the discharge port thereof is arranged on the extended line extending in the normal direction from the center of the main surface of the heat generating member to the surface of the substrate. Then, on the surface of the substrate, non-bubbling area is provided on the center within the projected area having the discharge port projected thereon. Bubble brought to the boil by the heat generating member pushes out ink from the discharge port by the pressure exerted by the bubble, while being communicated with the outside. With the structure thus arranged, it is made possible to enhance the precision of discharge direction of the liquid droplet discharged from the discharge port.Type: ApplicationFiled: October 31, 2006Publication date: February 22, 2007Applicant: CANON KABUSHIKI KAISHAInventors: Mineo Kaneko, Ken Tsuchii, Keiichiro Tsukuda, Masaki Oikawa, Kenji Yabe
-
Publication number: 20070040191Abstract: The present invention provides structures and devices comprising conductive segments and conductance constricting segments of a nanowire, such as metallic, superconducting or semiconducting nanowire. The present invention provides structures and devices comprising conductive nanowire segments and conductance constricting nanowire segments having accurately selected phases including crystalline and amorphous states, compositions, morphologies and physical dimensions, including selected cross sectional dimensions, shapes and lengths along the length of a nanowire. Further, the present invention provides methods of processing nanowires capable of patterning a nanowire to form a plurality of conductance constricting segments having selected positions along the length of a nanowire, including conductance constricting segments having reduced cross sectional dimensions and conductance constricting segments comprising one or more insulating materials such as metal oxides.Type: ApplicationFiled: May 4, 2006Publication date: February 22, 2007Applicant: The Board of Trustees of the University of IllinoisInventors: Alexey Bezryadin, Mikas Remeika
-
Publication number: 20070040192Abstract: A photodiode array 1 is provided with an n-type silicon substrate 3. A plurality of photodiodes 4 are formed in array on the opposite surface side to an incident surface of light L to be detected, in the n-type silicon substrate 3. A resin film 6 for transmitting the light L to be detected is provided so as to cover at least regions corresponding to regions where the photodiodes 4 are formed, on the incident surface side of the light L to be detected, in the n-type silicon substrate 3.Type: ApplicationFiled: March 25, 2004Publication date: February 22, 2007Applicant: HAMAMATSU PHOTONICS K.K.Inventor: Katsumi Shibayama
-
Publication number: 20070040193Abstract: A semiconductor device includes a semiconductor layer, and a first transistor and a second transistor that are formed using the semiconductor layer, wherein each conductance of the first and second transistors changes complementarily to each other according to a curvature of the semiconductor layer.Type: ApplicationFiled: August 17, 2006Publication date: February 22, 2007Applicant: SEIKO EPSON CORPORATIONInventor: Yoshiharu AJIKI
-
Publication number: 20070040194Abstract: A CCD image sensor includes photodiodes, vertical transfer CCDs for transferal of signal charge of the photodiodes, and a light shielding layer for protection of the vertical transfer CCDs from light. The light shielding layer covers over recesses disposed above the photodiodes, and each of the recesses has an opening on the bottom to expose a light receiving surface of the photodiode. A light diffusion layer is formed on the light shielding layer in each recess. Since the incident light oblique to an optical axis of a microlens is diffused by the light diffusion layer, the vertical CCDs hardly receive the light coming from around the edges of the opening.Type: ApplicationFiled: July 27, 2006Publication date: February 22, 2007Inventor: Takeshi Misawa
-
Publication number: 20070040195Abstract: A bio-compatible electrical element including a high-dielectric amorphous TixAl1-xOy oxide alloy wherein a TiO2 layer is between the bio-compatible electrical element and a biological such as human environment. A continuous and substantially pinhole free dielectric amorphous TixAl1-xOy oxide alloy wherein x is in the range of from about 0.5 to about 0.7 and y is in the range of about 2 to about 3 and having a TiO2 layer exterior thereto formed into a passive element such as a capacitor or an active element such as a microchip is disclosed.Type: ApplicationFiled: August 19, 2005Publication date: February 22, 2007Applicant: The University of ChicagoInventor: Orlando Auciello
-
Publication number: 20070040196Abstract: A manufacturing method of a semiconductor device is disclosed. The manufacturing method includes the steps of forming a contact plug in an insulation film so as to be connected to an element on a semiconductor substrate, applying PLA pretreatment to the insulation film in an NH3 atmosphere, forming a Ti film over the contact plug, nitriding the Ti film to form a TiN film as a part of a lower electrode of a capacitor, and forming a metal film as another part of the lower electrode of the capacitor on the titanium nitride film.Type: ApplicationFiled: August 15, 2006Publication date: February 22, 2007Applicant: FUJITSU LIMITEDInventor: Osamu Matsuura
-
Publication number: 20070040197Abstract: A non-volatile memory including a memory unit, a first bit line and a second bit line is provided. The memory unit includes a first doped region, a second doped region, a first memory cell, a select gate structure, and a second memory cell. The first doped region and the second doped region are formed in the substrate. The first memory cell, the select gate structure, and the second memory cell are formed between the first doped region and the second doped region on the substrate. The first memory cell is adjacent to the first doped region and the second memory is adjacent to the second doped region. The first bit line and the second bit line are formed on the substrate in parallel. The first doped region is electrically connected to the first bit line, and the second doped region is electrically connected to the second bit line.Type: ApplicationFiled: February 26, 2006Publication date: February 22, 2007Inventors: Ching-Sung Yang, Wei-Zhe Wong
-
Publication number: 20070040198Abstract: A manufacturing method of a semiconductor device is disclosed. The manufacturing method includes the steps of forming a contact plug in an insulation film so as to be connected to an element on a semiconductor substrate, applying a PLA process to the insulation film in an NH3 atmosphere, forming a Ti film on the contact plug, nitriding the Ti film to form a TiN film as a part of a lower electrode of a capacitor, and forming a metal film as another part of the lower electrode of the capacitor on the titanium nitride film.Type: ApplicationFiled: February 22, 2006Publication date: February 22, 2007Applicant: FUJITSU LIMITEDInventor: Osamu Matsuura
-
Publication number: 20070040199Abstract: In a semiconductor device, a transistor in an N-type logic region NL is covered with a tensile stress applying film and a transistor in a P-type logic region PL is covered with a compressive stress applying film. Transistors in a P-type SRAM region PS and an N-type SRAM region NS are covered with a layered film including a tensile stress applying film and a compressive stress applying film.Type: ApplicationFiled: July 24, 2006Publication date: February 22, 2007Inventor: Naoki Kotani
-
Publication number: 20070040200Abstract: A memory device includes isolation trenches that are formed generally parallel to and along associated strips of active area. A conductive bit line is recessed within each isolation trench such that the uppermost surface of the bit line is recessed below the uppermost surface of the base substrate. A bit line contact strap electrically couples the bit line to the active area both along a vertical dimension of the bit line strap and along a horizontal dimension across the uppermost surface of the base substrate.Type: ApplicationFiled: October 27, 2006Publication date: February 22, 2007Inventors: Luan Tran, Mark Durcan, Howard Kirsch
-
Publication number: 20070040201Abstract: A method of fabricating trench capacitors is described. A substrate having at least one isolation structure is provided. A first trench and a second trench are formed in the substrate beside the isolation structure. A first lower electrode and a second lower electrode are formed in the substrate around the first trench and the second trench. A first capacitor dielectric layer and a second capacitor dielectric layer are formed on the respective surfaces of the first trench and the second trench. A first upper electrode and a second upper electrode are formed to fill the first trench and the second trench. A portion of the isolation structure between the first trench and the second trench is removed to form an opening. A conductive layer is formed to fill the opening and connect electrically with the first upper electrode and the second upper electrode.Type: ApplicationFiled: August 16, 2005Publication date: February 22, 2007Inventors: Yi-Nan Su, Jun-Chi Huang
-
Publication number: 20070040202Abstract: In a semiconductor memory including an array of memory cells, each memory cell includes a trench capacitor, the trench capacitor including an inner electrode, an outer electrode and a dielectric layer disposed between the inner electrode and the outer electrode, and a selection transistor, the selection transistor including a first source/drain area, a second source/drain area and a channel region disposed between the first source/drain area and the second source/drain area in a recess, the trench capacitor and the selection transistor of each memory cell are disposed side by side, the first source/drain area of the selection transistor being electrically connected to the inner electrode of the trench capacitor, the recess in which the channel region of the selection transistor is formed being located self aligned between the trench capacitor of the memory cell and the trench capacitor of an adjacent memory cell.Type: ApplicationFiled: August 18, 2005Publication date: February 22, 2007Applicant: INFINEON TECHNOLOGIES AGInventors: Gerhard Enders, Marc Strasser, Peter Voigt, Bjorn Fischer
-
Semiconductor device capacitors with oxide-nitride layers and methods of fabricating such capacitors
Publication number: 20070040203Abstract: Capacitors having upper electrodes that include a lower electrode, a dielectric layer and an upper electrode that includes a conductive metal nitride layer and a doped polysilicon germanium layer are provided. At least part of the conductive metal nitride layer is oxidized and/or at least part of the dielectric layer is nitridized.Type: ApplicationFiled: March 22, 2006Publication date: February 22, 2007Inventors: Jong-cheol Lee, Young-sun Kim, Jung-hee Chung, Jae-hyoung Choi, Se-hoon Oh, Hong-bum Park -
Publication number: 20070040204Abstract: Disclosed are three-dimensional dielectric structures on high surface area electrodes and fabrication methods. Exemplary structures comprise a copper foil substrate, trench electrodes or high surface area porous electrode structures formed on the substrate, a insulating thin film formed on the surface and laminating the foil on a organic substrate. A variety of materials may be used to make the films including perovksite ceramics such as barium titanate, strontium titanate, barium strontium titanate (BST), lead zirconate titanate (PZT); other intermediate dielectric constant films such as zinc oxide, aluminum nitride, silicon nitride; typical paraelectrics such as tantalum oxide, alumina, and titania. The films may be fabricated using sol-gel, hydrothermal synthesis, anodization or vapor deposition techniques.Type: ApplicationFiled: August 16, 2006Publication date: February 22, 2007Inventors: Markondeya Pulugurtha, Devarajan Balaraman, Isaac Abothu, Rao Tummala, Farrokh Ayazi
-
Publication number: 20070040205Abstract: The present teachings relate to a method of forming a container capacitor structure on a substrate. In one embodiment, the method comprises etching a recess in the substrate, depositing a first conductive layer on the substrate so as to overlie the substrate and the recess, depositing a filler layer so as to overlie the first conductive layer and fill the recess, and etching the first and second conductive layers so as to define a lower electrode within the recess. The method further comprises forming a cap layer on the lower electrode so as to overlie the first conductive layer and the filler layer and etching at least a portion of the substrate away from the lower electrode to thereby at least partially isolate the lower electrode. Subsequently, the remainder of the capacitor structure may be formed by depositing a dielectric layer on the lower electrode and depositing a second conductive layer on the dielectric layer so as to form an upper electrode.Type: ApplicationFiled: August 22, 2005Publication date: February 22, 2007Inventors: Guy Blalock, Scott Meikle
-
Publication number: 20070040206Abstract: A high-dielectric material which is especially useful as a material for a high-capacitance capacitor and which has a high dielectric constant is provided. The high-dielectric material is composed of a sintered body of a rare-earth sulfide, the high-dielectric material having a crystal structure of tetragonal ? type, a chemical composition represented by Ln2S3 (where Ln represents a rare-earth metal), a frequency domain within the range of 0.5 kHz to 1,000 kHz, and a value of relative dielectric constant of more than 1,000 at room temperature.Type: ApplicationFiled: March 22, 2004Publication date: February 22, 2007Inventors: Shinji Hirai, Toshiyuki Nishimura, Yoichiro Uemura, Shigenori Morita, Michihiro Ohta, Kazumasa Igarashi
-
Publication number: 20070040207Abstract: Methods of forming an electronic device include providing a fist electrode, providing a dielectric oxide layer on the first electrode, and providing a second electrode on the dielectric oxide layer so that the dielectric oxide layer is between the first and second electrodes. More particularly, a first portion of the dielectric oxide layer adjacent the first electrode can have a first density of titanium, and a second portion of the dielectric oxide layer opposite the first electrode can have a second density of titanium different than the first density. Related structures are also discussed.Type: ApplicationFiled: October 25, 2006Publication date: February 22, 2007Inventors: Gab-jin Nam, Seung-hwan Lee, Ki-chul Kim, Jae-soon Lim, Sung-tae Kim, Young-sun Kim
-
Publication number: 20070040208Abstract: A non-volatile semiconductor memory device with good write/erase characteristics is provided. A selection gate is formed on a p-type well of a semiconductor substrate via a gate insulator, and a memory gate is formed on the p-type well via a laminated film composed of a silicon oxide film, a silicon nitride film, and a silicon oxide film. The memory gate is adjacent to the selection gate via the laminated film. In the regions on both sides of the selection gate and the memory gate in the p-type well, n-type impurity diffusion layers serving as the source and drain are formed. The region controlled by the selection gate and the region controlled by the memory gate located in the channel region between said impurity diffusion layers have the different charge densities of the impurity from each other.Type: ApplicationFiled: October 30, 2006Publication date: February 22, 2007Inventors: Digh Hisamoto, Shinichiro Kimura, Kan Yasui, Nozomu Matsuzaki
-
Publication number: 20070040209Abstract: The amount of current flowing in the bitline during reading of a memory cell which is in the conductive state, hereinafter called the memory cell current, can be amplified manifold by changing the above mentioned select transistors to a novel device which is described in detail. The increase of the area of the said memory arrays due to the replacement of said select transistor with the novel device is very small. In addition the novel device can be built within the pitch of said select transistor, which is the pitch of the bitline. The novel device can be used in many types of semiconductor memories, as described in the various embodiments.Type: ApplicationFiled: August 17, 2005Publication date: February 22, 2007Inventor: Gregorio Spadea
-
Publication number: 20070040210Abstract: The present invention provides a nonvolatile semiconductor memory that allows simultaneous implementation of high performance transistors in a low-voltage circuit region and transistors with high withstand voltages in a high-voltage circuit region.Type: ApplicationFiled: June 19, 2006Publication date: February 22, 2007Applicant: Kabushiki Kaisha ToshibaInventor: Yasuhiko Matsunaga
-
Publication number: 20070040211Abstract: A multi-bit memory cell includes a substrate; a multi-bit charge-trapping cell over the substrate, the multi-bit charge-trapping cell having a first lateral side and a second lateral side; a source region in the substrate, a portion of the source region being under the first side of the multi-bit charge-trapping cell; a drain region in the substrate, a portion of the drain region being under the second side of the multi-bit charge-trapping cell; and a channel region in the substrate between the source region and the drain region. The channel region has one of a p-type doping and an n-type doping, and the doping is configured to provide a highest doping concentration near the central portion of the channel region.Type: ApplicationFiled: August 22, 2005Publication date: February 22, 2007Inventors: Shao Ku, Yin Chen, Wenpin Lu, Tahui Wang
-
Publication number: 20070040212Abstract: An asymmetric heterodoped metal oxide (AH2MOS) semiconductor device includes a substrate and an insulated gate on the top of the substrate disposed between a source region and a drain region. On one side of the gate, heterodoped tub and source regions are formed. The tub region has dopants of a second polarity. A source region is disposed inside each tub region and has dopants of a first polarity opposite to the second polarity. On the other side of the gate, heterodoped buffer and drift regions are formed. The buffer regions comprise dopants of the second polarity. The drift regions are disposed inside the buffer regions and are doped with dopants of the first polarity. A drain n+ tap region is disposed in the drift region.Type: ApplicationFiled: October 23, 2006Publication date: February 22, 2007Inventors: Jun Cai, Michael Harley-Stead, Jim Holt
-
Publication number: 20070040213Abstract: The present invention provides a technique for accumulating minority carriers in the body region, that is, the intermediate region interposed between the top region and the deep region, and thus increasing the concentration of minority carriers in the intermediate region. A semiconductor device has a top region (34) of a second conductivity type, a deep region (26) of the second conductivity type, and an intermediate region (28) of a first conductivity type for isolating the top region and the deep region. The semiconductor device further has a trench gate (32) facing a portion of the intermediate region via an insulating layer (33). The portion facing the trench gate isolates the top region and the deep region. The trench gate extends along a longitudinal direction. The width of the trench gate is not uniform along the longitudinal direction; instead the width of the trench gate varies along the longitudinal direction.Type: ApplicationFiled: November 5, 2004Publication date: February 22, 2007Inventors: Koji Hotta, Sachiko Kawaji, Masanori Usui, Takahide Sugiyama
-
Publication number: 20070040214Abstract: The cellular structure of the power device includes a substrate that has a highly doped drain region. Over the substrate there is a more lightly doped epitaxial layer of the same doping. Above the epitaxial layer is a well region formed of an opposite type doping. Covering the wells is an upper source layer of the first conductivity type that is heavily doped. The trench structure includes a sidewall oxide or other suitable insulating material that covers the sidewalls of the trench. The bottom of the trench is filled with a doped polysilicon shield. An interlevel dielectric such as silicon nitride covers the shield. The gate region is formed by another layer of doped polysilicon. A second interlevel dielectric, typically borophosphosilicate glass (BPSG) covers the gate. In operation, current flows vertically between the source and the drain through a channel in the well when a suitable voltage is applied to the gate.Type: ApplicationFiled: August 10, 2006Publication date: February 22, 2007Inventor: Jun Zeng
-
Publication number: 20070040215Abstract: A power semiconductor device which includes a plurality of gate trenches and a perimeter trench intersecting the gate trenches.Type: ApplicationFiled: August 14, 2006Publication date: February 22, 2007Inventors: Ling Ma, Adam Amali, Russell Turner
-
Publication number: 20070040216Abstract: A low resistance layer is formed on a semiconductor substrate, and a high resistance layer formed on the low resistance layer. A source region of a first conductivity type is formed on a surface region of the high resistance layer. A drain region of the first conductivity type is formed at a distance from the source region. A first resurf region of the first conductivity type is formed in a surface region of the high resistance layer between the source region and the drain region. A channel region of a second conductivity type is formed between the source region and the first resurf region. A gate insulating film is formed on the channel region, and a gate electrode formed on the gate insulating film. An impurity concentration in the channel region under the gate electrode gradually lowers from the source region toward the first resurf region.Type: ApplicationFiled: August 17, 2006Publication date: February 22, 2007Inventors: Tomoko Matsudai, Norio Yasuhara, Yusuke Kawaguchi, Kenichi Matsushita
-
Publication number: 20070040217Abstract: The power semiconductor device according to one embodiment of the present invention at least comprises: first pillar layers of the first conductive type and second pillar layers of a second conductive type which constitute a super-junction structure in a device section and which are arranged alternately in a horizontal direction, each of the first and second pillar layers having a column-shaped sectional structure; third pillar layers of the first conductive type and fourth pillar layers of the second conductive type which are adjacent to the super-junction structure of the device section to constitute another super-junction structure thinner in a vertical direction than the super-junction structure of the device section in a device termination section and which are arranged alternately in a horizontal direction, each of the third and fourth pillar layers having a column-shaped sectional structure; an outermost pillar layer which is stacked on one of the third or fourth pillar layers in the super-junction strType: ApplicationFiled: October 20, 2006Publication date: February 22, 2007Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Wataru Saito, Ichiro Omura
-
Publication number: 20070040218Abstract: A semiconductor structure is provided that includes a hybrid orientated substrate having at least two coplanar surfaces of different surface crystal orientations, wherein one of the coplanar surfaces has bulk-like semiconductor properties and the other coplanar surface has semiconductor-on-insulator (SOI) properties. In accordance with the present invention, the substrate includes a new well design that provides a large capacitance from a retrograde well region of the second conductivity type to the substrate thereby providing noise decoupling with a low number of well contacts. The present invention also provides a method of fabricating such a semiconductor structure.Type: ApplicationFiled: August 19, 2005Publication date: February 22, 2007Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Wilfried Haensch, Edward Nowak
-
Publication number: 20070040219Abstract: A III-V group nitride system semiconductor self-standing substrate is made of III-V group nitride system semiconductor single crystal with a hexagonal crystal system crystalline structure. The substrate is provided with a surface that is off-oriented 0.09 degrees or more and 24 degrees or less in the a-axis or m-axis direction from C-face of the substrate.Type: ApplicationFiled: October 31, 2006Publication date: February 22, 2007Applicant: Hitachi Cable, Ltd.Inventor: Masatomo Shibata
-
Publication number: 20070040220Abstract: An electrostatic discharge circuit includes at least an electrostatic discharge zener diode, an NMOS transistor, and a PMOS transistor. The electrostatic discharge zener diode is used for lowering the breakdown voltage and making the electrical current discharge through it, thereby preventing the circuit device from burning out and greatly enhancing the function of electrostatic discharge protection.Type: ApplicationFiled: October 29, 2005Publication date: February 22, 2007Applicant: SILICONMOTION INC.Inventors: Te-Wei Chen, Li-Chiu Weng
-
Publication number: 20070040221Abstract: A gate controlled fin resistance element for use as an electrostatic discharge (ESD) protection element in an electrical circuit has a fin structure having a first connection region, a second connection region and a channel region formed between the first and second connection regions. Furthermore, the fin resistance element has a gate region formed at least over a part of the surface of the channel region. The gate region is electrically coupled to a gate control device, which gate control device controls an electrical potential applied to the gate region in such a way that the gate controlled fin resistance element has a high electrical resistance during a first operating state of the electrical circuit and a lower electrical resistance during a second operating state, which is characterized by the occurrence of an ESD event.Type: ApplicationFiled: August 18, 2006Publication date: February 22, 2007Inventors: Harald Gossner, Christian Russ
-
Publication number: 20070040222Abstract: The present invention provides an integrated circuit for improved ESD protection and method of forming the same. The integrated circuit comprises a substrate and an insulating layer formed over the substrate. The circuit also comprises a field effect field effect transistor (FET) formed over the insulating layer. The FET includes a well region of a first conductivity type. The circuit also includes a well resistor coupled to the FET to provide ballasting to the circuit. The well resistor includes a well region also of the first conductivity type.Type: ApplicationFiled: June 12, 2006Publication date: February 22, 2007Inventors: Benjamin Van Camp, Gerd Vermont, Bart Keppens
-
Publication number: 20070040223Abstract: Embodiments of the invention provide a device with a metal gate, a high-k gate dielectric layer, source/drain extensions a distance beneath the metal gate, and lateral undercuts in the sides of the metal gate.Type: ApplicationFiled: August 17, 2005Publication date: February 22, 2007Inventors: Suman Datta, Justin Brask, Jack Kavalieros, Brian Doyle, Gilbert Dewey, Mark Doczy, Robert Chau
-
Publication number: 20070040224Abstract: A method for use during fabrication of a semiconductor device comprises the formation of buried digit lines and contacts. During formation, a buried bit line layer may be used as a mask to etch one or more openings in a dielectric layer. A conductive layer is then formed in the one or more openings in the dielectric layer, and is then planarized to form one or more individual contact plugs. Next, the buried bit line layer is etched to recess the buried bit line layer, and a capacitor plate is formed to contact the contact plug.Type: ApplicationFiled: August 22, 2005Publication date: February 22, 2007Inventors: James Green, Terrence McDaniel
-
Publication number: 20070040225Abstract: The present invention relates to a semiconductor device that comprises at least one field effect transistor (FET) containing a source region, a drain region, a channel region, a gate dielectric layer, a gate electrode, and one or more gate sidewall spacers. The gate electrode of such an FET contains an intrinsically stressed gate metal silicide layer, which is laterally confined by one or more gate sidewall spacers and is arranged and constructed for creating stress in the channel region of the FET. Preferably, the semiconductor device comprises at least one p-channel FET, and more preferably, the p-channel FET has a gate electrode with an intrinsically stressed gate metal silicide layer that is laterally confined by one or more gate sidewall spacers and is arranged and constructed for creating compressive stress in the p-channel of the FET.Type: ApplicationFiled: August 22, 2005Publication date: February 22, 2007Inventor: Haining Yang
-
Publication number: 20070040226Abstract: A cascode circuit in which two field effect transistors “FET”) are connected in cascode has a first FET having its source grounded, a second FET having its source connected to the drain of the first FET, and a Schottky barrier diode having an anode connected to the source of the first FET and a cathode connected to the gate of the second FET.Type: ApplicationFiled: June 5, 2006Publication date: February 22, 2007Applicant: Mitsubishi Denki Kabushiki KaishaInventors: Hirotaka Amasuga, Takayuki Matsuzuka, Akira Inoue
-
Publication number: 20070040227Abstract: In a metal gate replacement process, a cup-shaped gate metal oxide dielectric may have vertical portions that may be exposed to a reduction reaction. As a result of the reduction reaction, the vertical portions may be converted to metal, which adds to the existing gate electrode. In some cases, removing the vertical dielectric portions reduces fringe capacitance and may also advantageously slightly increased underdiffusion without adding heat, in some embodiments.Type: ApplicationFiled: October 26, 2006Publication date: February 22, 2007Inventors: Suman Datta, Justin Brask, Jack Kavalieros, Mark Doczy, Matthew Metz, Robert Chau
-
Publication number: 20070040228Abstract: Known drawbacks associated with use of tungsten as a gate material in a semiconductor device are prevented. A gate oxide layer, a polysilicon layer, and a nitride layer are sequentially formed on a semiconductor substrate having a isolation layer for defining the active region. A recess is defined by etching the nitride layer. A metal nitride layer is formed in the recess in an U shape, and then a metal layer is formed to bury the recess. A hard mask layer is formed for defining a gate forming region on the nitride layer, the metal nitride layer, and the metal layer. A metal gate is formed by etching the nitride layer, the polysilicon layer, and the gate oxide layer using the hard mask layer as an etch barrier.Type: ApplicationFiled: August 10, 2006Publication date: February 22, 2007Inventor: Tae Kyun Kim
-
Publication number: 20070040229Abstract: The invention relates to a self-assembly microstructure with a polyimide thin-film elastic joint, which contains at least one stationary part of the microstructure and at least one movable part of the microstructure. An elastic joint located between the stationary part and the movable part is a photosensitive polyimide thin film material. The polyimide elastic joint is contracted after high-temperature reflow process. The surface tension force of cured polyimide can rotate and lift-up the movable part of the microstructure in completion of the self-assembly of the microstructure.Type: ApplicationFiled: October 13, 2005Publication date: February 22, 2007Applicant: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Alex Hong, I-Yu Huang, Chih-Hung Wang
-
Publication number: 20070040230Abstract: A micromechanical component has a structure such that a material flow is guided from at least one preferred direction for the purpose of uniformly enveloping the micromechanical component.Type: ApplicationFiled: July 24, 2006Publication date: February 22, 2007Inventors: Frank Reichenbach, Frieder Haag, Arnd Kaelberer
-
Publication number: 20070040231Abstract: A package for a micro-electromechanical (MEMS) device is described. A premolded leadframe base has opposing top and bottom surfaces. Each surface is defined by a topology having at least one electrically conductive portion and at least one electrically non-conductive portion, and the topology of the top surface differs from the topology of the bottom surface.Type: ApplicationFiled: January 24, 2006Publication date: February 22, 2007Inventors: Kieran Harney, John Martin, Lawrence Felton
-
Publication number: 20070040232Abstract: An imaging device having a CMOS photosensor array for capturing images is described in which the array is also used to input programming and/or data used to control the imaging operations. The data-input can be based upon variations in light color, value, intensity, and patterning, or any combinations of the foregoing, for the download of information to the device.Type: ApplicationFiled: August 24, 2006Publication date: February 22, 2007Inventor: Atif Sarwari