Patents Issued in July 12, 2007
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Publication number: 20070158703Abstract: An electronic device can include a gated diode, wherein the gated diode includes a junction diode structure including a junction. A first conductive member spaced apart from and adjacent to the junction can be connected to a first signal line. A second conductive member, spaced apart from and adjacent to the junction, can be both electrically connected to a second signal line and electrically insulated from the first conductive member. The junction diode structure can include a p-n or a p-i-n junction. A process for forming the electronic device is also described.Type: ApplicationFiled: January 6, 2006Publication date: July 12, 2007Applicant: Freescale Semiconductor, Inc.Inventors: Leo Mathew, Michael Khazhinsky
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Publication number: 20070158704Abstract: A semiconductor device having an etch stop layer and a method of fabricating the same are provided. The semiconductor device may include a substrate and a first gate electrode formed on the substrate. An auxiliary spacer may be formed on the sidewall of the first gate electrode. An etch stop layer may be formed on the substrate having the auxiliary spacer. The etch stop layer and the auxiliary spacer may be formed of a material having a same stress property.Type: ApplicationFiled: September 22, 2006Publication date: July 12, 2007Inventors: Ki-Chul Kim, Dong-Suk Shin, Yong-Kuk Jeong
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Publication number: 20070158705Abstract: A semiconductor device including a semiconductor substrate having at least one pair of a source region and a drain region being formed at a surface layer portion thereof, a gate insulating film being provided on a surface of the semiconductor substrate between the source region and the drain region and having a relative dielectric constant of 5 or more, and a gate electrode being provided on a surface of the gate insulating film and made of a polycrystalline silicon based material containing at least one type of impurity, wherein a substance which restricts movement of the impurity from the polycrystalline silicon based material to the gate insulating film is provided in a vicinity of an interface to the gate insulating film.Type: ApplicationFiled: January 4, 2007Publication date: July 12, 2007Inventor: Mariko Takayanagi
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Publication number: 20070158706Abstract: A thin film transistor for fabricating on a flexible substrate is provided. The thin film transistor includes a gate, a gate insulating layer, a channel layer, a first conductive pattern, and a second conductive pattern. The gate and the gate insulating layer are disposed on the flexible substrate, and the gate insulating layer covers the gate. The channel layer is disposed on the gate insulating layer and located above the gate. The channel layer has a first contact region and multiple second contact regions, wherein the first contact region is located between the second contact regions. In addition, the first conductive pattern is disposed on a portion of the gate insulating layer and the first contact region; and the second conductive pattern electrically insulated from the first conductive pattern is disposed on a portion of the gate insulating layer and the second contact region.Type: ApplicationFiled: March 8, 2006Publication date: July 12, 2007Inventors: Chih-Ming Lai, Yung-Hui Yeh, Yi-Hsun Huang
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Publication number: 20070158707Abstract: An image sensor including a substrate, a plurality of conductive sections, a first type doped layer, an intrinsic layer, and a transparent electrode layer is provided. Wherein, the conductive sections are disposed on the substrate, and the dielectric layer is disposed between two adjacent conductive sections. In addition, the first type doped layer overlays the conductive sections and the dielectric layer, and the intrinsic layer is disposed on the first type doped layer. Moreover, the transparent electrode layer is disposed on the intrinsic layer.Type: ApplicationFiled: March 29, 2006Publication date: July 12, 2007Inventors: Min-San Huang, Sian-Min Chung, Chia-Chiang Wang, Yu-Chun Lin, Wen-Tsung Chiu, Hung-Nien Chen
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Publication number: 20070158708Abstract: A theme is to prevent the generation of noise due to damage in a photodetecting portion in a mounting process in a photodiode array, a method of manufacturing the same, and a radiation detector. In a photodiode array, wherein a plurality of photodiodes (4) are formed in array form on a surface at a side of an n-type silicon substrate (3) onto which light to be detected is made incident and penetrating wirings (8), which pass through from the incidence surface side to the back surface side, are formed for the photodiodes (4), recessed portions (6) of a predetermined depth that are depressed with respect to regions at which the respective photodiodes (4) are not formed are disposed at the incidence surface side, and the photodiodes (4) are disposed in the recessed portions (6) to arrange the photodiode array (1).Type: ApplicationFiled: March 10, 2004Publication date: July 12, 2007Applicant: HAMAMATSU PHOTONICS K.K.Inventor: Katsumi Shibayama
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Publication number: 20070158709Abstract: An image sensor device having a pixel cell with a pinned photodiode, which utilizes the fixed charge of an high K dielectric layer over the n-type region for the pinning effect without implanting a p-type layer over the n-type region, and methods of forming such a device.Type: ApplicationFiled: January 9, 2006Publication date: July 12, 2007Inventor: Chandra Mouli
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Publication number: 20070158710Abstract: Provided are a low-noise image sensor capable of improving the efficiency of charge transfer from a photodiode to a diffusion node region and effectively suppressing the generation of dark current, and a transistor for the image sensor. The image sensor includes: a photosensitive pixel having a transfer transistor formed in a structure which causes hole accumulation in a part or all regions of a gate oxide; and a sensing control part applying a negative offset potential to the gate during a part or whole of a turn-off period of the transfer transistor. When the transfer transistor is off, the image sensor may form a sufficient barrier and accumulate electrons in the photodiode, and when the transistor is on, the sensor sufficiently lowers a barrier, fully depletes the photodiode before the transfer transistor reaches a threshold voltage, and inactivates a trap in a predetermined region for a certain time, and thus the dark current can be reduced.Type: ApplicationFiled: December 5, 2006Publication date: July 12, 2007Inventors: Bong Mheen, Mi Kim, Young Song
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Publication number: 20070158711Abstract: Structures and method for forming the same. The semiconductor structure comprises a photo diode that includes a first semiconductor region and a second semiconductor region. The first and second semiconductor regions are doped with a first and second doping polarities, respectively, and the first and second doping polarities are opposite. The semiconductor structure also comprises a transfer gate that comprises (i) a first extension region, (ii) a second extension region, and (iii) a floating diffusion region. The first and second extension regions are in direct physical contact with the photo diode and the floating diffusion region, respectively. The semiconductor structure further comprises a charge pushing region. The charge pushing region overlaps the first semiconductor region and does not overlap the floating diffusion region. The charge pushing region comprises a transparent and electrically conducting material.Type: ApplicationFiled: January 10, 2006Publication date: July 12, 2007Inventors: James Adkisson, Jeffrey Gambino, Mark Jaffe, Jeffrey Johnson, Jerome Lasky, Richard Rassel
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Publication number: 20070158712Abstract: An integrated circuit includes at least one photodiode associated with a transfer transistor. The photodiode is formed with an upper pn junction. The transfer transistor includes a lateral spacer located on a side facing the photodiode. An upper layer of the upper pn junction includes a lateral surface extension lying beneath the spacer. A lower layer of the upper pn junction forms a source/drain region for the transfer transistor. An edge of the lateral surface extension lying beneath the spacer and adjacent a gate of the transfer transistor contacts a substrate of the integrated circuit. An oxide layer insulating the gate from the underlying substrate does not overlie the lateral surface extension of the upper layer underneath of the lateral spacer.Type: ApplicationFiled: July 5, 2006Publication date: July 12, 2007Applicant: STMicroelectronics S.A.Inventors: Damien Lenoble, Francois Roy
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Publication number: 20070158713Abstract: A CMOS imaging device formed of plural CMOS photosensors arranged in a row and column formation, wherein a first CMOS photosensor and a second CMOS photosensor adjacent with each other in a column direction are formed in a single, continuous device region defined on a semiconductor substrate by a device isolation region.Type: ApplicationFiled: January 16, 2007Publication date: July 12, 2007Applicant: FUJITSU LIMITEDInventor: Narumi Ohkawa
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Publication number: 20070158714Abstract: A MIM capacitor technique is described wherein bottom plates (electrodes) are composed of gate conductor material, and are formed in the same layer, in the same way, using the same masking and processing steps as transistor gates. The top plates (electrodes) are formed using a simple single-mask, single-damascene process. Electrical connections to both electrodes of the MIM capacitor are made via conventional BEOL metallization, requiring no additional dedicated process steps. The bottom plates (formed of gate conductor material) of the MIM capacitors overlie STI regions formed at the same time as STI regions between transistors. Method and apparatus are described.Type: ApplicationFiled: November 21, 2005Publication date: July 12, 2007Applicant: International Business Machines CorporationInventors: Ebenezer Eshun, Jessie Abbotts, Daniel Colello, Douglas Coolbaugh, Zhong-Xiang He, Matthew Moon, Charles Musante, Robert Rassel
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Publication number: 20070158715Abstract: In a ferroelectric capacitor comprising: a lower electrode; a ferroelectric film formed on the lower electrode; and an upper electrode formed on the ferroelectric film, variations in composition profile of elements constituting the ferroelectric film are 50% or lower in the thickness direction of the ferroelectric film, and the polarization switching time of the ferroelectric film is 1 ?s or less.Type: ApplicationFiled: October 2, 2006Publication date: July 12, 2007Inventor: Shinichiro Hayashi
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Publication number: 20070158716Abstract: A conductive memory stack is provided. The memory stack includes a bottom electrode, a top electrode and a multi-resistive state element. The multi-resistive state element is sandwiched between the electrodes such that the top face of the bottom electrode is in contact with the multi-resistive state element's bottom face and the bottom face of the top electrode is in contact with the multi-resistive state element's top face. The bottom electrode, the top electrode and the multi-resistive state element all have sides that are adjacent to their faces. Furthermore, the sides are at least partially covered by a sidewall layer.Type: ApplicationFiled: March 5, 2007Publication date: July 12, 2007Inventors: Darrell Rinerson, Steve Hsia, Steven Longcor, Wayne Kinney, Edmond Ward, Christophe Chevallier
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Publication number: 20070158717Abstract: The invention is directed to an integrated circuit comb capacitor with capacitor electrodes that have an increased capacitance between neighboring capacitor electrodes as compared with other interconnects and via contacts formed in the same metal wiring level and at the same pitches. The invention achieves a capacitor that minimizes capacitance tolerance and preserves symmetry in parasitic electrode-substrate capacitive coupling, without adversely affecting other interconnects and via contacts formed in the same wiring level, through the use of, at most, one additional noncritical, photomask.Type: ApplicationFiled: January 10, 2006Publication date: July 12, 2007Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Daniel C. Edelstein, Anil K. Chinthakindi, Timothy J. Dalton, Ebenezer E. Eshun, Jeffrey P. Gambino, Sarah L. Lane, Anthony K. Stamper
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Publication number: 20070158718Abstract: A method of fabricating a dynamic random access memory is provided. A trench capacitor is formed in a substrate and an isolation structure is formed on the trench capacitor. A gate structure and a passing gate structure are formed on the substrate. The gate structure is on one side of the passing gate structure. A source region and a drain region are formed in the substrate on both sides of the gate structure. A dielectric layer is formed on the substrate. A contact is formed in the dielectric layer and the isolation structure, at the other side of the passing gate structure, and is coupled to the trench capacitor. Since the contact is formed at the other side of the passing gate structure, the contact would not coupled to the source and drain regions when misalignment occurs.Type: ApplicationFiled: January 12, 2006Publication date: July 12, 2007Inventor: Yi-Nan Su
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Publication number: 20070158719Abstract: A dynamic random access memory structure having a vertical floating body cell includes a semiconductor substrate having a plurality of cylindrical pillars, an upper conductive region positioned on a top portion of the cylindrical pillar, a body positioned below the upper conductive portion in the cylindrical pillar, a bottom conductive portion positioned below the body in the cylindrical pillar, a gate oxide layer surrounding the sidewall of the cylindrical pillar and a gate structure surrounding the gate oxide layer. The upper conductive region serves as a drain electrode, the bottom conductive region serves as a source electrode and the body can store carriers such as holes. Preferably, the dynamic random access memory structure further comprises a conductive layer positioned on the surface of the semiconductor substrate to electrically connect the bottom conductive regions in the cylindrical pillars.Type: ApplicationFiled: April 13, 2006Publication date: July 12, 2007Applicant: Promos Technologies Inc.Inventor: Ting Sing Wang
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Publication number: 20070158720Abstract: A semiconductor device includes a semiconductor substrate, at least one trench capacitor which is buried into the surface area of the semiconductor substrate, and a first insulation film which is formed on the trench capacitor. The semiconductor device further includes at least one switching transistor provided on the surface of the semiconductor substrate which corresponds to the trench capacitor, the switching transistor having a body section set in an electrically floating state between source and drain regions, the first insulation film being interposed between the body section of the switching transistor and the trench capacitor opposed to one another, the trench capacitor being electrically connected to one of the source and drain regions of the switching transistor.Type: ApplicationFiled: April 24, 2006Publication date: July 12, 2007Inventor: Takashi Izumida
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Publication number: 20070158721Abstract: A trench isolation surrounding the lateral sides of an active region of a P-channel MIS transistor PTr and a trench isolation surrounding the lateral sides of an active region of an N-channel MIS transistor NTr have different film qualities.Type: ApplicationFiled: October 11, 2006Publication date: July 12, 2007Inventor: Susumu Akamatsu
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Publication number: 20070158722Abstract: A vertical cell is realized. The cell includes a first vertical metal oxide semiconductor (MOS) transistor having a body between a drain region and a source region and a second vertical MOS transistor including at least a portion of the body of the first vertical MOS transistor.Type: ApplicationFiled: March 22, 2007Publication date: July 12, 2007Inventor: Leonard Forbes
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Publication number: 20070158723Abstract: A semiconductor storage device of the present invention has a configuration in which a plurality of memory cells respectively including a transistor connected to a storage element for accumulating data are used, a bit line and a word line for specifying one of a plurality of memory cells are used. A structure in which a source electrode and a drain electrode hold an active region is formed vertically to a substrate face. The same bit line is connected to the first two-memory cell unit adjacently formed in a predetermined direction. The same word line is formed, which is a gate electrode of the transistors of the second two-memory cell unit which includes one memory cell of the first two-memory cell unit and which is adjacently formed in the predetermined direction.Type: ApplicationFiled: January 5, 2007Publication date: July 12, 2007Applicant: ELPIDA MEMORY, INC.Inventor: Naoki YOKOI
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Publication number: 20070158724Abstract: A trench device and method for fabricating same are provided. The trench device has a collar with a first portion that is doped and a second portion that is undoped. Fabrication of the partially doped collar can be done by deposition of a doped insulator in the trench, removal of a portion of the doped deposition, deposition of an undoped insulator in the trench and removal of a portion of the doped and undoped insulators.Type: ApplicationFiled: January 6, 2006Publication date: July 12, 2007Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Kangguo Cheng, Geng Wang
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Publication number: 20070158725Abstract: A structure and a method for fabrication of the structure use a capacitor trench for a trench capacitor and a resistor trench for a trench resistor. The structure is typically a semiconductor structure. In a first instance, the capacitor trench has a linewidth dimension narrower than the resistor trench. The trench linewidth difference provides an efficient method for fabricating the trench capacitor and the trench resistor. In a second instance, the trench resistor comprises a conductor material at a periphery of the resistor trench and a resistor material at a central portion of the resistor trench.Type: ApplicationFiled: January 9, 2006Publication date: July 12, 2007Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Kangguo Cheng, Robert M. Rassel
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Publication number: 20070158726Abstract: Disclosed are a semiconductor device having a vertical trench gate structure to improve the integration degree and a method of manufacturing the same. The semiconductor device includes an epitaxial layer having a second conductive type on a first conductive type substrate having an active region and an isolation region, a trench in the isolation region, a first conductive type first region in the epitaxial layer at opposite side portions of the trench, an isolation layer at a predetermined depth in the trench, a gate insulation layer along upper side portions of the trench, a gate electrode in an upper portion of the trench, a body region in the active region, a source electrode on the body region, a source region in an upper portion of the body region at opposite side portions of the gate electrode, and a drain electrode at a rear surface of the substrate.Type: ApplicationFiled: December 28, 2006Publication date: July 12, 2007Inventors: Gyu Sim, Jong Kim
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Publication number: 20070158727Abstract: A semiconductor memory device includes a semiconductor substrate including an insulating layer, a charge storage region of a first conductivity type on the insulating layer, and an insulating film on the insulating layer and surrounding the charge storage region. A body region of the first conductivity type is on an upper surface of the charge storage region, and a gate stack including a gate electrode and a gate insulating film is on the body region. A source region and a drain region of a second conductivity type are on opposite sides of the body region. The charge storage region extends further towards the semiconductor substrate than the source region and/or the drain region. Methods of forming semiconductor memory devices are also disclosed.Type: ApplicationFiled: January 3, 2007Publication date: July 12, 2007Inventors: Ki-Whan Song, Chang-Hyun Kim
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Publication number: 20070158728Abstract: A buried plate region for a semiconductor memory storage capacitor is self aligned with respect to an upper portion of a deep trench containing the memory storage capacitor.Type: ApplicationFiled: March 28, 2007Publication date: July 12, 2007Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Kangguo Cheng, Ramachandra Divakaruni, C.Y. Sung
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Publication number: 20070158729Abstract: A TFT array panel for a display has a gate insulating layer with substantially the same dielectric constant as the passivation layer and may be thicker than the passivation layer, while the storage capacitor includes a pixel electrode and a storage electrode overlapping each other along with the passivation layer sandwiched therebetween such that the storage capacitor has a higher capacitance than known storage capacitors even though the storage conductors have the same area as before.Type: ApplicationFiled: December 28, 2006Publication date: July 12, 2007Inventors: Young-Chol Yang, Dae-Jin Park, Ji-Suk Lim, Yong-Gi Park
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Publication number: 20070158730Abstract: An integrated circuit includes a logic circuit and a memory cell. The logic circuit includes a P-channel transistor, and the memory cell includes a P-channel transistor. The P-channel transistor of the logic circuit includes a channel region. The channel region has a portion located along a sidewall of a semiconductor structure having a surface orientation of (110). The portion of the channel region located along the sidewall has a first vertical dimension that is greater than a vertical dimension of any portion of the channel region of the P-channel transistor of the memory cell located along a sidewall of a semiconductor structure having a surface orientation of (110).Type: ApplicationFiled: January 10, 2006Publication date: July 12, 2007Inventors: James Burnett, Leo Mathew, Byoung Min
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Publication number: 20070158731Abstract: A memory device includes one or more layers of parallel strings of ferroelectric gate transistors on a substrate, each layer of parallel strings including a plurality of parallel line-shaped active regions and a plurality of word lines extending in parallel transversely across the active regions and disposed on ferroelectric patterns on the active regions. A string select gate line may extend transversely across the active regions in parallel with the word lines. A ground select gate line may extend transversely across the active regions in parallel with the word lines.Type: ApplicationFiled: January 5, 2007Publication date: July 12, 2007Inventors: Byoung-Jae Bae, Byung-Gil Jeon, Heung-Jin Joo, Dong-Chul Yoo, Sang-Don Nam
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Publication number: 20070158732Abstract: Disclosed are a flash memory device having a vertical split gate structure and a method for manufacturing the same. The flash memory device includes a first trench formed in an active region of a semiconductor substrate and including a pair of opposite sidewalls, a second trench formed in the middle of the first trench so as to be deeper than the first trench and including a pair of opposite sidewalls, a pair of opposite floating gates formed along the pair of sidewalls of the first trench, a pair of opposite control gates formed along the pair of sidewalls of the paired floating gates 160a and along the pair of sidewalls of the second trench, a common source diffusion region formed in the active region under the pair of control gates, a drain diffusion region formed in the active region adjacent to the pair of floating gates, and a common source line electrically contacted with the common source diffusion region and formed between the pair of control gates.Type: ApplicationFiled: December 28, 2006Publication date: July 12, 2007Inventor: Sung Kim
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Publication number: 20070158733Abstract: The present invention provides a high-speed low-voltage programming scheme and self-convergent high-speed low-voltage erasing schemes for Electrically Erasable Programmable Read-Only Memories (EEPROM). For the N-type Field Effect Transistor (NFET) based NVM programming, an elevated source voltage to the substrate can achieve high efficient Drain-Avalanche-Hot-Electron Injection (DAHEI) into the floating gate resulting in high-speed and low-voltage operations. The self-convergent and low-voltage erasing can be achieved by applying Drain-Avalanche-Hot Hole Injection (DAHHI) with the conditions of restricted maximum drain current and a moderate control gate voltage enough to turn on the NFET. For the p-type FET (PFET) based EEPROM programming, a negative source voltage relative to the substrate can achieve high efficient Drain-Avalanche-Hot-Hole Injection (DAHHI) into the floating gate resulting in high-speed and low voltage operations.Type: ApplicationFiled: January 9, 2006Publication date: July 12, 2007Inventors: Daniel Huang, Lee Wang, Hsin Lin, Roget Chang
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Publication number: 20070158734Abstract: An electronic device including a multi-gate electrode structure overlying the channel region further comprising a first and second gate electrode spaced apart from each other by a layer, and a process for forming the electronic device is disclosed. The multi-gate electrode structure can have a sidewall spacer structure having first and second portions. The first and second gate electrodes can have different conductivity types. The electronic device can also include a first gate electrode of a first conductivity type overlying the channel region, a second gate electrode of a second conductivity type lying between the first gate electrode and the channel region, and a first layer capable of storing charge lying between the first gate electrode and the substrate.Type: ApplicationFiled: January 9, 2006Publication date: July 12, 2007Applicant: Freescale Semiconductor, Inc.Inventor: Gowrishankar Chindalore
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Publication number: 20070158735Abstract: A method of forming a transistor reduces leakage current and hot carrier effects, and therefore improves current performance. The method of forming a transistor includes selectively etching the semiconductor substrate to form a substrate protrusion and expose a buried source/drain implant region. A gate insulating layer covers the substrate protrusion and the first source/drain region. A gate conductor layer is selectively etched to form a gate pattern covering the sidewalls of the substrate protrusion and a portion of the semiconductor substrate adjacent to the sidewalls of the substrate protrusion. A second source/drain region is stacked over the top of the substrate protrusion. Contacts connected to the gate pattern and the first and second source/drain regions.Type: ApplicationFiled: December 22, 2006Publication date: July 12, 2007Inventor: Jeong-Ho Park
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Publication number: 20070158736Abstract: A semiconductor memory device includes: a semiconductor substrate, on which an impurity diffusion layer is formed in a cell array area; a gate wiring stack body formed on the cell array area, in which multiple gate wirings are stacked and separated from each other with insulating films; a gate insulating film formed on the side surface of the gate wiring stack body, in which an insulating charge storage layer is contained, pillar-shaped semiconductor layers arranged along the gate wiring stack body, one side surfaces of which are opposed to the gate wiring stack body via the gate insulating film, each pillar-shaped semiconductor layer having the same conductivity type as the impurity diffusion layer; and data lines formed to be in contact with the upper surfaces of the pillar-shaped semiconductor layers and intersect the gate wirings.Type: ApplicationFiled: December 27, 2006Publication date: July 12, 2007Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Fumitaka Arai, Riichiro Shirota, Makoto Mizukami
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Publication number: 20070158737Abstract: A mask read only memory (ROM) device includes a plurality of isolation patterns disposed at predetermined regions of a semiconductor substrate to define a plurality of active regions. The semiconductor substrate includes a mask ROM region where a plurality of on cells and a plurality of off-cells are disposed. The mask ROM further includes a plurality of gate lines disposed over the active regions, and which cross over the isolation patterns, a plurality of gate insulating layers interposed between the gate lines and the active regions and a floating conductive pattern and a inter-gate dielectric pattern located between the gate line and the gate insulating layer of the off-cell.Type: ApplicationFiled: December 27, 2006Publication date: July 12, 2007Inventors: Seung-Jin Yang, Jeong-Uk Han
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Publication number: 20070158738Abstract: A flash memory device and a method of manufacturing the same is disclosed. A gate dielectric film formed between a floating gate and a control gate of a flash memory device is formed by laminating an oxide film and a ZrO2 film. Accordingly, the reliability of the flash memory can be improved while securing a high coupling ratio.Type: ApplicationFiled: June 30, 2006Publication date: July 12, 2007Applicant: Hynix Semiconductor, Inc.Inventors: Kwon Hong, Eun Shil Park
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Publication number: 20070158739Abstract: A semiconductor (e.g., complementary metal oxide semiconductor (CMOS)) structure formed on a (110) substrate that has improved performance, in terms of mobility enhancement is provided. In accordance with the present invention, the inventive structure includes at least one of a single tensile stressed liner, a compressively stressed shallow trench isolation (STI) region, or a tensile stressed embedded well, which is used in conjunction with the (110) substrate to improve carrier mobility of both nFETs and pFETs. The present invention also relates to a method of providing such structures.Type: ApplicationFiled: January 6, 2006Publication date: July 12, 2007Applicant: International Business Machines CorporationInventors: Massimo Fischetti, Qiqing Ouyang
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Publication number: 20070158740Abstract: A semiconductor device including an n-type semiconductor substrate, a p-type channel region and a junction layer provided between the n-type semiconductor substrate and the p-type channel region is disclosed. The junction layer has n-type drift regions and p-type partition regions alternately arranged in the direction in parallel with the principal surface of the n-type semiconductor substrate. The p-type partition region forming the junction layer is made to have a higher impurity concentration than the n-type drift region. This enables the semiconductor device to have an enhanced breakdown voltage and, at the same time, have a reduced on-resistance.Type: ApplicationFiled: November 28, 2006Publication date: July 12, 2007Applicant: FUJI ELECTRIC HOLDINGS CO., LTD.Inventors: Koh Yoshikawa, Akio Sugi, Kouta Takahashi, Manabu Takei, Haruo Nakazawa, Noriyuki Iwamuro
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Publication number: 20070158741Abstract: A lateral double diffused metal oxide semiconductor (LDMOS) device, and method of fabricating such a device, are provided. The method comprises the steps of: (a) providing a substrate of a first conductivity type; (b) forming within the substrate a well region of a second conductivity type, the well region having a super steep retrograde (SSR) well profile in which a doping concentration changes with depth so as to provide a lighter doping concentration in a surface region of the well region than in a region below the surface region of the well region; (c) forming a gate layer which partly overlies the well region and is insulated from the well region; and (d) forming one of a source region and a drain region in the well region. The presence of the SSR well region provides a lighter surface doping to enable a higher breakdown voltage to be obtained within the LDMOS device, and heavier sub-surface doping to decrease the on-resistance.Type: ApplicationFiled: March 12, 2007Publication date: July 12, 2007Applicant: Macronix International Co., LtdInventors: Chia-Lun Hsu, Mu-Yi Liu, Tao-Cheng Lu, Ichen Yang, Kuan-Po Chen
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Publication number: 20070158742Abstract: There are provided a MOS transistor and a manufacturing method thereof. The MOS transistor includes a substrate on which an insulating layer is formed, a gate embedded in the insulating layer, wherein the top surface of the gate is exposed, a gate oxide layer formed on the insulating layer and the gate, a silicon layer formed on the gate oxide layer, and a source region and a drain region formed in the silicon layer to be in contact with the gate oxide layer.Type: ApplicationFiled: December 30, 2005Publication date: July 12, 2007Inventor: Hyung Yun
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Publication number: 20070158743Abstract: The present invention provides a semiconducting device structure including a thin SOI region, wherein the SOI device is formed with an optional single thin diffusion, i.e., offset, spacer and a single diffusion implant. The device silicon thickness is thin enough to permit the diffusion implants to abut the buried insulator but thick enough to form a contacting silicide. Stress layer liner films are used both over nFET and pFET device regions to enhance performance.Type: ApplicationFiled: January 11, 2006Publication date: July 12, 2007Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Leland Chang, David Fried, John Hergenrother, Ghavam Shahidi, Jeffrey Sleight
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Publication number: 20070158744Abstract: A thin film transistor array panel includes a substrate, a plurality of first and second signal lines crossing each other on the substrate, source electrodes connected to the first signal lines, drain electrodes connected to the second signal lines, pixel electrodes connected to the drain electrodes, a first partition formed on the source and drain electrodes and having a first opening, wherein a lower width of the first opening is wider than an upper width of the first opening, an organic semiconductor formed in the first opening and at least overlapping the portions of the source electrode and the drain electrode, and a gate electrode connected to the second signal line and at least overlapping the portion of the organic semiconductor.Type: ApplicationFiled: October 12, 2006Publication date: July 12, 2007Inventors: Keun-Kyu Song, Tae-Young Choi, Tae-Hyung Hwang, Seung-Hwan Cho
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Publication number: 20070158745Abstract: (Object) It is an object of the present invention to provide a peeling method that causes no damage to a layer to be peeled and to allow not only a layer to be peeled with a small surface area but also a layer to be peeled with a large surface area to be peeled entirely. Further, it is also an object of the present invention to bond a layer to be peeled to various base materials to provide a lighter semiconductor device and a manufacturing method thereof. Particularly, it is an object to bond various elements typified by a TFT, (a thin film diode, a photoelectric conversion element comprising a PIN junction of silicon, or a silicon resistance element) to a flexible film to provide a lighter semiconductor device and a manufacturing method thereof.Type: ApplicationFiled: March 5, 2007Publication date: July 12, 2007Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Toru Takayama, Junya Maruyama, Yumiko Ohno
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Publication number: 20070158746Abstract: A semiconductor device includes first semiconductor layers with a first conductivity, second to fifth semiconductor layers with a second conductivity, gate electrodes, and a first wiring layer. The second semiconductor layers are each disposed between adjacent ones of the first semiconductor layers. The third semiconductor layer is in contact with the second semiconductor layers. The gate electrodes are formed on the second semiconductor layers. The fourth semiconductor layer is in contact with the third semiconductor layer. The first wiring layer is formed on the third semiconductor layer and commonly connects the gate electrodes. The length of the fourth semiconductor layer in the lengthwise direction is smaller than the length of the third semiconductor layer in the lengthwise direction. The fifth semiconductor layer is in contact with the fourth semiconductor layer and isolated from the first semiconductor layers by the fourth semiconductor layer.Type: ApplicationFiled: May 10, 2006Publication date: July 12, 2007Inventor: Tatsuya Ohguro
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Publication number: 20070158747Abstract: The present invention relates to methods and devices for reducing the threshold voltage difference between an n-type field effect transistor (n-FET) and a p-type field effect transistor (p-FET) in a complementary metal-oxide-semiconductor (CMOS) circuit located on a silicon-on-insulator (SOI) substrate. Specifically, a substrate bias voltage is applied to the CMOS circuit for differentially adjusting the threshold voltages of the n-FET and the p-FET. For example, a positive substrate bias voltage can be used to reduce the threshold voltage of the n-FET but increase that of the p-FET, while a negative substrate bias voltage can be used to increase the threshold voltage of the n-FET but reduce that of the p-FET. Further, two or more substrate bias voltages of different magnitudes and/or directions can be used for differentially adjusting the n-FET and p-FET threshold voltages in two or more different CMOS circuits or groups of CMOS circuits.Type: ApplicationFiled: January 11, 2006Publication date: July 12, 2007Applicant: International Business Machines CorporationInventors: Jin Cai, Wilfried Haensch, Tak Ning
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Publication number: 20070158748Abstract: A semiconductor device includes an ESD protection device on a substrate, and a resistor having a gate structure overlying a resistor well separating a first doped region coupled to the ESD protection device and a second doped region coupled to a supply voltage for passing an ESD current from the second doped region to the first doped region to turn on the ESD protection device for dissipating the ESD current during an ESD event. The resistor well has an impurity density lower than that of the first and second doped regions for increasing resistance therebetween.Type: ApplicationFiled: January 10, 2006Publication date: July 12, 2007Inventors: Yu-Hung Chu, Shao-Chuang Huang
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Publication number: 20070158749Abstract: An apparatus having low resistance contacts in both the memory cell array and peripheral logic circuitry areas of a semiconductor device, for example, a DRAM memory device, is disclosed. In a buried bit line connection process flow, the present invention utilizes chemical vapor deposition of titanium to form titanium silicide in contact structures of the peripheral logic circuitry areas and physical vapor deposition to provide a metal mode (metallic) titanium layer in contact with the poly plugs in the memory cell array area of a semiconductor device, for example, a DRAM memory device according to the present invention. In this manner, the present invention avoids the potential drawbacks such as voiding in the poly plugs of the memory cell array due to the present of titanium silicide, which can cause significant reduction of device drain current and in extreme cases cause electrical discontinuity.Type: ApplicationFiled: December 19, 2006Publication date: July 12, 2007Inventor: Terrence McDaniel
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Publication number: 20070158750Abstract: An integrated circuit arrangement includes a Shockley diode or a thyristor. An inner region of the diode or of the thyristor is completely or partially shielded during the implantation of a p-type well. This gives rise to a Shockley diode or a thyristor having improved electrical properties, in particular with regard to the use as an ESD protection element.Type: ApplicationFiled: November 27, 2006Publication date: July 12, 2007Inventors: Ulrich Glaser, Harold Gossner, Kai Esmark
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Publication number: 20070158751Abstract: In order to diversify a current control method of a semiconductor device, improve performance (including a current drive performance) of the semiconductor device, and reduce a size of the semiconductor device, a second gate may be formed inside a substrate that forms a channel upon applying a bias voltage thereto. In one aspect, the semiconductor device includes: a well region of a first conductivity; source and drain regions of a second conductivity in the well region; a first gate on an oxide layer above the well region, controlling a first channel region of a second conductivity between the source region and the drain region; and a second gate under the first channel region.Type: ApplicationFiled: December 22, 2006Publication date: July 12, 2007Inventor: Hyung Yun
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Publication number: 20070158752Abstract: Disclosed is a semiconductor structure and associated method of performing the structure with good performance and stability trade-offs for digital circuits and SRAM cells and/or analog FETs on the same chip. Specifically, a dual-strain layer is formed over digital circuits and the other devices on a chip. The dual-strain layer comprises tensile sections above digital logic n-type transistors, compressive sections above digital logic p-type transistors and additional tensile sections above SRAM cells and/or analog FETs. An amorphization ion-implant is performed to relax the strain over SRAM cell p-FETs and, thereby, eliminate variability and avoid p-FET performance degradation in the SRAM cells. Additionally, this ion-implant can relax the strain above both analog p-FETs and n-FETs and, thereby, eliminate variability and the coupling of the logic device process to the analog FETs and provide more predictable and well-controlled analog FETs.Type: ApplicationFiled: January 10, 2006Publication date: July 12, 2007Inventors: Brent Anderson, Edward Nowak