Alloying Of Impurity Material, E.g., Dopant, Electrode Material, With Semiconductor Body (epo) Patents (Class 257/E21.47)
  • Patent number: 8901010
    Abstract: Methods for protecting a texturized region and a lightly doped diffusion region of a solar cell to improve solar cell lifetime and efficiency are disclosed. In an embodiment, an example method includes providing a solar cell having a front side which faces the sun during normal operation and a back side opposite the front side, a silicon substrate and where the silicon substrate includes a texturized region and a lightly doped diffusion region. The method includes placing the solar cell on a receiving medium with the front side of the solar cell placed on an upper surface of the receiving medium, where the upper surface of the receiving medium prevents damage to the to the lightly doped diffusion region and damage to the texturized region on the front side of the solar cell during a contact printing process or transferring. In an embodiment, the lightly doped diffusion region has a doping concentration below 1×1019 cm?3 and the receiving medium includes a material having a moh's hardness in the range of 5-10.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 2, 2014
    Assignee: SunPower Corporation
    Inventors: Staffan Westerberg, Florito Dennis Tingchuy Vicente, Michael Cudzinovic, Princess Carmi Tomada, Jemellee Guiao
  • Patent number: 8546247
    Abstract: A method of manufacturing a semiconductor device, in which an amorphous silicon layer is formed into a shape of a gate electrode of a MOS transistor, and then impurity is implanted to a surface of a silicon substrate from a diagonal direction using the amorphous silicon layer as a mask.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: October 1, 2013
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Hidenobu Fukutome, Youichi Momiyama
  • Patent number: 8395183
    Abstract: Provided is a light emitting apparatus. The light emitting apparatus includes a substrate; a light emitting device on the substrate; a fluorescent layer formed on the substrate and the light emitting device to surround the light emitting device; an encapsulant resin layer formed on the substrate and the fluorescent layer to surround the fluorescent layer; and a lens disposed on the light emitting device and supported by the substrate, wherein the lens includes a lens body having a first recess formed at a center of a top surface of the lens body and a second recess formed at a center of a bottom surface of the lens body, and a lens supporter provided at the bottom surface of the lens body to support the lens body such that the lens body is spaced apart from the substrate.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: March 12, 2013
    Assignee: LG Innotek Co., Ltd.
    Inventors: Sang Won Lee, Gyu Hyeong Bak
  • Patent number: 8058159
    Abstract: A method for fabricating a component is disclosed. The method includes: providing a member having an effective work function of an initial value, disposing a sacrificial layer on a surface of the member, disposing a first agent within the member to obtain a predetermined concentration of the agent at said surface of the member, annealing the member, and removing the sacrificial layer to expose said surface of the member, wherein said surface has a post-process effective work function that is different from the initial value.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: November 15, 2011
    Assignee: General Electric Company
    Inventors: Vance Robinson, Stanton Earl Weaver, Joseph Darryl Michael
  • Publication number: 20110272744
    Abstract: Described herein are semiconductor structures comprising laterally varying II-VI alloy layer formed over a surface of a substrate. Further, methods are provided for preparing laterally varying II-VI alloy layers over at least a portion of a surface of a substrate comprising contacting at least a portion of a surface of a substrate within a reaction zone with a chemical vapor under suitable reaction conditions to form a laterally varying II-VI alloy layer over the portion of the surface of the substrate, wherein the chemical vapor is generated by heating at least two II-VI binary compounds; and the reaction zone has a temperature gradient of at least 50-100° C. along an extent of the reaction zone. Also described here are devices such as lasers, light emitting diodes, detectors, or solar cells that can use such semiconductor structures.
    Type: Application
    Filed: November 6, 2009
    Publication date: November 10, 2011
    Applicant: ARIZONA BOARD OF REGENTS, a body corporate acting for and on behalf of ARIZONA STATE UNIVERSITY
    Inventors: Cun-zheng Ning, Anlian Pan
  • Patent number: 8030716
    Abstract: A method for fabricating a CMOS structure is disclosed. The method includes the blanket disposition of a high-k gate insulator layer in an NFET device and in a PFET device, and the implementation of a gate metal layer over the NFET device. This is followed by a blanket disposition of an Al layer over both the NFET device and the PFET device. The method further involves a blanket disposition of a shared gate metal layer over the Al layer. When the PFET device is exposed to a thermal annealing, the high-k dielectric oxidizes the Al layer, thereby turning the Al layer into a PFET interfacial control layer, while in the NFET device the Al becomes a region of the metal gate.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: October 4, 2011
    Assignee: International Business Machines Corporation
    Inventors: Dae-Gyu Park, Michael P. Chudzik, Vijay Narayanan, Vamsi Paruchuri
  • Patent number: 7863126
    Abstract: A method for fabricating a CMOS structure is disclosed. The method includes the blanket disposition of a high-k gate insulator layer in an NFET device and in a PFET device, and the implementation of a gate metal layer over the NFET device. This is followed by a blanket disposition of an Al layer over both the NFET device and the PFET device. The method further involves a blanket disposition of a shared gate metal layer over the Al layer. When the PFET device is exposed to a thermal annealing, the high-k dielectric oxidizes the Al layer, thereby turning the Al layer into a PFET interfacial control layer, while in the NFET device the Al becomes a region of the metal gate.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: January 4, 2011
    Assignee: International Business Machines Corporation
    Inventors: Dae-Gyu Park, Michael P. Chudzik, Vijay Narayanan, Vamsi Paruchuri
  • Publication number: 20100320456
    Abstract: The present invention is directed to methods for depositing doped and/or alloyed semiconductor layers, an apparatus suitable for the depositing, and products prepared therefrom.
    Type: Application
    Filed: June 19, 2009
    Publication date: December 23, 2010
    Applicant: EPV Solar, Inc.
    Inventors: Alan E. DELAHOY, Gaurav SARAF, Sheyu GUO
  • Patent number: 7838906
    Abstract: A semiconductor device 1 includes a substrate 2 having on a main surface thereof a central area and a peripheral area which surrounds the central area and is exposed, a semiconductor layer 4 which is formed on the main surface of the substrate 2, is made of a material harder than the substrate 2, is in the shape of a mesa, and has a steep side over the exposed peripheral area, and an insulating film 12S provided on a side surface of the semiconductor layer 4.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: November 23, 2010
    Assignee: Sanken Electric Co., Ltd.
    Inventors: Ken Sato, Nobuo Kaneko
  • Publication number: 20100180950
    Abstract: A method and corresponding system for providing a uniform nanowire array including uniform nanowires composed of at least three elements is presented. An embodiment of the method includes growing an array of two-element nanowires, and thereafter uniformly doping or alloying each two-element nanowire, with respect to each other two-element nanowire, with at least one doping or alloying element through a wet chemical synthesis with a precursor solution, to produce the uniform array of nanowires composed of at least three elements. The two-element nanowire can include Zn and O, and the at least one doping or alloying element can be Mg, Cd, Mn, Cu, Be, Fe, and Co. Applications of the three-element nanowire array include solar cells and light emitting diodes with improved efficiencies over existing technologies.
    Type: Application
    Filed: November 13, 2009
    Publication date: July 22, 2010
    Applicant: University of Connecticut
    Inventors: Pu-Xian Gao, Paresh Shimpi
  • Patent number: 7645652
    Abstract: A CMOS image sensor and a method of fabricating the same are provided. The CMOS image sensor includes: a semiconductor substrate of a first conductivity type having a photodiode region and a transistor region defined therein; a gate electrode formed above the transistor region of the semiconductor substrate with a gate insulating layer interposed therebetween; a first impurity region formed of the first conductivity type in the semiconductor substrate below the gate electrode and having a higher concentration of first conductivity type ions than the semiconductor substrate; and a second impurity region formed of a second conductivity type in the photodiode region of the semiconductor substrate.
    Type: Grant
    Filed: August 21, 2006
    Date of Patent: January 12, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Lim Keun Hyuk
  • Patent number: 7618884
    Abstract: A Schottky barrier silicon carbide device has a Re Schottky metal contact. The Re contact 27 is thicker than 250 Angstroms and may be between 2000 and 4000 Angstroms. A termination structure is provided by ion milling an annular region around the Schottky contact.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: November 17, 2009
    Assignee: Fairchild Semiconductor Corporation
    Inventors: William F. Seng, Richard L. Woodin, Carl Anthony Witt
  • Publication number: 20090085211
    Abstract: Embodiments of the invention describe electrical contacts for integrated circuits and methods of forming using gas cluster ion beam (GCIB) processing. The electrical contacts contain a fused metal-containing layer formed by exposing a patterned structure to a gas cluster ion beam containing a transition metal precursor or a rare earth metal precursor.
    Type: Application
    Filed: September 28, 2007
    Publication date: April 2, 2009
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Rodney L. Robison, Douglas Trickett
  • Patent number: 7268073
    Abstract: Methods (102) are presented for protecting copper structures (26) from corrosion in the fabrication of semiconductor devices (2), wherein a thin semiconductor or copper-semiconductor alloy corrosion protection layer (30) is formed on an exposed surface (26a) of a copper structure (26) prior to performance of metrology operations (206), so as to inhibit corrosion of the copper structure (26). All or a portion of the corrosion protection layer (30) is then removed (214) in forming an opening in an overlying dielectric (44) in a subsequent interconnect layer.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: September 11, 2007
    Assignee: Texas Instruments Incorporated
    Inventors: Deepak A. Ramappa, Mona Eissa, Christopher Lyle Borst, Ting Y. Tsui
  • Patent number: 7084052
    Abstract: A method of fabricating a thin film transistor by setting the temperature of a heat treatment for crystallizing an active layer which is formed on a substrate at a level not deforming the substrate and activating an impurity layer in a heat treatment method different from that employed for the heat treatment, and a semiconductor device prepared by forming a heat absorption film, a semiconductor film, a gate insulating film, and a gate electrode on a substrate, the heat absorption film being provided within a region substantially corresponding to the semiconductor film.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: August 1, 2006
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Kiichi Hirano, Naoya Sotani, Toshifumi Yamaji, Yoshihiro Morimoto, Kiyoshi Yoneda