Using Bipolar Structure (epo) Patents (Class 257/E27.106)
-
Patent number: 9881936Abstract: Disclosed herein is a semiconductor integrated circuit including: a cell layout region including circuit cells subject to power control the supply and interruption of power to which is controlled by a power switch, and always-on circuit cell groups which are always powered after the activation; a main line laid out in the cell layout region and applied with a source or reference voltage; and first and second branch lines which branch from the main line in the cell layout region.Type: GrantFiled: May 6, 2015Date of Patent: January 30, 2018Assignee: Sony CorporationInventor: Tetsuo Motomura
-
Patent number: 8912576Abstract: A bipolar junction transistor built with a mesh structure of cells provided on a semiconductor body is disclosed. The mesh structure has at least one emitter cell with a first type of implant. At least one emitter cell has at least one side coupled to at least one cell with a first type of implant to serve as collector of the bipolar. The spaces between the emitter and collector cells are the intrinsic base of a bipolar device. At least one emitter cell has at least one vortex coupled to at least one cell with a second type of implant to serve as the extrinsic base of the bipolar. The emitter, collector, or base cells can be arbitrary polygons as long as the overall geometry construction can be very compact and expandable. The implant regions between cells can be separated with a space. A silicide block layer can cover the space and overlap into at least a portion of both implant regions.Type: GrantFiled: March 15, 2013Date of Patent: December 16, 2014Inventor: Shine C. Chung
-
Patent number: 8680593Abstract: There is provided a high quality liquid crystal panel having a thickness with high accuracy, which is designed, without using a particulate spacer, within a free range in accordance with characteristics of a used liquid crystal and a driving method, and is also provided a method of fabricating the same. The shape of a spacer for keeping a substrate interval constant is made such that it is a columnar shape, a radius R of curvature is 2 ?m or less, a height H is 0.5 ?m to 10 ?m, a diameter is 20 ?m or less, and an angle ? is 65° to 115°. By doing so, it is possible to prevent the lowering of an opening rate and the lowering of light leakage due to orientation disturbance.Type: GrantFiled: January 27, 2012Date of Patent: March 25, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yoshiharu Hirakata, Yuugo Goto, Yuko Kobayashi, Shunpei Yamazaki
-
Patent number: 8558296Abstract: An analog floating-gate electrode in an integrated circuit, and method of fabricating the same, in which trapped charge can be stored for long durations. The analog floating-gate electrode is formed in a polycrystalline silicon gate level, and includes portions serving as a transistor gate electrode, a plate of a metal-to-poly storage capacitor, and a plate of poly-to-active tunneling capacitors. Silicide-block silicon dioxide blocks the formation of silicide cladding on the electrode, while other polysilicon structures in the integrated circuit are silicide-clad.Type: GrantFiled: March 23, 2011Date of Patent: October 15, 2013Assignee: Texas Instruments IncorporatedInventors: Imran Mahmood Khan, Allan T. Mitchell, Kaiping Liu
-
Patent number: 7893498Abstract: A semiconductor device 10 comprises a P type base region 13 formed in an N? type base region 11, and N+ type emitter regions 14 formed plurally in the P type base region 13 so as to be spaced form each other. The N+ type emitter regions 14 are formed such that the rate of the area occupied by the N+ type emitter region 14 in the P type base region 13 at the center part of the semiconductor device 10 is smaller than the rate of the area occupied by the N+ type emitter region 14 in the P type base region 13 at the peripheral part of the semiconductor device 10.Type: GrantFiled: January 30, 2006Date of Patent: February 22, 2011Assignee: Sanken Electric Co., Ltd.Inventor: Katsuyuki Torii
-
Patent number: 7605446Abstract: A bipolar high voltage/power semiconductor device has a drift region having adjacent its ends regions of different conductivity types respectively. High and low voltage terminals are provided. A first insulated gate terminal and a second insulated gate terminal are also provided. One or more drive circuits provide appropriate voltages to the first and second insulated gate terminals so as to allow current conduction in a first direction or in a second direction that is opposite the first direction.Type: GrantFiled: July 14, 2006Date of Patent: October 20, 2009Assignee: Cambridge Semiconductor LimitedInventors: Florin Udrea, Nishad Udugampola, Gehan A. J. Amaratunga
-
Patent number: 7482642Abstract: A bipolar transistor which has a base formed of a combination of shallow and deep acceptors species. Specifically, elements such as Indium, Tellurium, and Gallium are deep acceptors in silicon, and are appropriate for such an application, in combination with boron as the shallow acceptor. The use of a deep acceptor for doping the base of the transistor has the benefit of providing a doping species, which increases in ionization as the temperature rises. At elevated temperatures, the fraction of, for example, indium which is ionized increases and it results in an increased Gummel number, driving down the current gain. In other words, the enhancement of the Gummel number between room temperature and an elevated temperature compensates for the increase in the ratio of collector and base currents due to band gap narrowing effects. Thus, a zero temperature coefficient bipolar transistor is provided.Type: GrantFiled: March 11, 2005Date of Patent: January 27, 2009Assignee: LSI CorporationInventor: Ashok K. Kapoor
-
Publication number: 20070267716Abstract: Present invention proposes a dramatic improvement of CMOS IC technology by providing high speed bipolar current amplifiers compatible with CMOS technological process while retaining the footprint compatible to one of standard CMOS devices. This invention promises further increase of speed of ICs as well as a reduction of power dissipation.Type: ApplicationFiled: May 20, 2006Publication date: November 22, 2007Inventors: SERGEY ANTONOV, ALEXEI I ANTONOV