Patents Examined by Michelle Estrada
  • Patent number: 7572704
    Abstract: A method for forming a metal pattern in a semiconductor device includes forming an etch stop layer over a semi-finished substrate including a metal layer, forming a hard mask over the etch stop layer, etching the hard mask to form a hard mask pattern exposing the etch stop layer, and etching the etch stop layer and the metal layer using the hard mask pattern.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: August 11, 2009
    Assignee: Hynix Semiconductor Inc.
    Inventors: Sang-Rok Oh, Jae-Seon Yu
  • Patent number: 7569924
    Abstract: A semiconductor chip 11 comprising an element formation layer which is formed on a first main surface 35A of a semiconductor substrate 35 and has a semiconductor element, through electrodes 15, 16 which are electrically connected to the semiconductor element and extend through the semiconductor chip 11, and a patch antenna 33 formed on the side of a second main surface 35B of the semiconductor substrate 35 are disposed, and the patch antenna 33 is electrically connected to the through electrode 15 electrically connected to a line for power feeding of the semiconductor element.
    Type: Grant
    Filed: July 24, 2006
    Date of Patent: August 4, 2009
    Assignee: Shinko Electric Industries Co., Ltd.
    Inventor: Tomoharu Fujii
  • Patent number: 7566661
    Abstract: A method of forming an EL-Cu enhanced noble metal layer begins with providing a semiconductor substrate in a reaction chamber, wherein the semiconductor substrate includes a trench etched into a dielectric layer. Next, an organometallic precursor containing a noble metal and a reactive gas are pulsed into the reaction chamber proximate to the semiconductor substrate where they react to form a noble metal layer directly on the dielectric layer within the trench. The substrate is then moved into an electroless plating bath and an electroless plating process deposits a copper seed layer onto the noble metal layer. The substrate is then removed from the plating bath.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: July 28, 2009
    Inventor: Adrien R. Lavoie
  • Patent number: 7563666
    Abstract: Semiconductor structures and methods of making a vertical diode structure are provided. The vertical diode structure may have associated therewith a diode opening extending through an insulation layer and contacting an active region on a silicon wafer. A titanium silicide layer may be formed over the interior surface of the diode opening and contacting the active region. The diode opening may initially be filled with an amorphous silicon plug that is doped during deposition and subsequently recrystallized to form large grain polysilicon. The silicon plug has a top portion that may be heavily doped with a first type dopant and a bottom portion that may be lightly doped with a second type dopant. The top portion may be bounded by the bottom portion so as not to contact the titanium silicide layer. In one embodiment of the vertical diode structure, a programmable resistor contacts the top portion of the silicon plug and a metal line contacts the programmable resistor.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: July 21, 2009
    Assignee: Micron Technology, Inc.
    Inventors: Fernando Gonzalez, Tyler A. Lowrey, Trung Tri Doan, Raymond A. Turi, Graham R. Wolstenholme
  • Patent number: 7563710
    Abstract: A method of forming a damascene wire. The method including: forming a mask layer on a top surface of a dielectric layer; forming an opening in the mask layer; forming a trench in the dielectric layer where the dielectric layer is not protected by the mask layer; recessing the sidewalls of the trench under the mask layer; forming a conformal conductive liner on all exposed surface of the trench and the mask layer; filling the trench with a core electrical conductor; removing portions of the conductive liner extending above the top surface of the dielectric layer and removing the mask layer; and forming a conductive cap on a top surface of the core conductor.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: July 21, 2009
    Assignee: International Business Machines Corporation
    Inventors: Chih-Chao Yang, Lawrence A. Clevenger, Andrew P. Cowley, Timothy J. Dalton, Meeyoung H. Yoon
  • Patent number: 7563649
    Abstract: A packaging technology for silicon chips is similar to ball grid array packaging technology of the prior art without, however, the use of printed board substrate of the prior art Instead pins are used that are part of a planar frame, the pins folded to a position 90 degrees from the plane of the frame, after which the frame is disposed in contact with the chip, pads on the frame and the chip are connected, and then entire assembly is then encapsulated. The edges of the frame are then cut off, leaving the encapsulation to maintain the configuration of the package in place.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: July 21, 2009
    Inventor: Chris Karabatsos
  • Patent number: 7560759
    Abstract: A fin type MOSFET and a method of manufacturing the fin type MOSFET are disclosed. Gate structures in the fin type MOSFET are formed by a damascene process without a photolithography process. Impurities used to form a channel region are selectively implanted into portions of a semiconductor substrate adjacent to the gate structures.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: July 14, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Soo Kang, Jae-Man Yoon, Dong-Gun Park, Sang-Yeon Han, Young-Joon Ahn, Choong-Ho Lee
  • Patent number: 7560352
    Abstract: A method for epitaxially forming a silicon-containing material on a substrate surface utilizes a halogen containing gas as both an etching gas as well as a carrier gas through adjustments of the process chamber temperature and pressure. It is beneficial to utilize HCl as the halogen containing gas because converting HCl from a carrier gas to an etching gas can easily be performed by adjusting the chamber pressure.
    Type: Grant
    Filed: March 17, 2006
    Date of Patent: July 14, 2009
    Assignee: Applied Materials, Inc.
    Inventors: David K. Carlson, Satheesh Kuppurao, Errol Antonio C. Sanchez, Howard Beckford, Yihwan Kim
  • Patent number: 7557001
    Abstract: The invention includes methods of forming electrically conductive material between line constructions associated with a peripheral region or a pitch region of a semiconductor substrate. The electrically conductive material can be incorporated into an electrically-grounded shield, and/or can be configured to create a magnetic field bias. Also, the conductive material can have electrically isolated segments that are utilized as electrical jumpers for connecting circuit elements. The invention also includes semiconductor constructions comprising the electrically conductive material between line constructions associated with one or both of the pitch region and the peripheral region.
    Type: Grant
    Filed: July 5, 2005
    Date of Patent: July 7, 2009
    Assignee: Micron Technology, Inc.
    Inventors: Mark Fischer, Terrence B. McDaniel
  • Patent number: 7557032
    Abstract: Methods and structures are provided for full silicidation of recessed silicon. Silicon is provided within a trench. A mixture of metals is provided over the silicon in which one of the metals diffuses more readily in silicon than silicon does in the metal, and another of the metals diffuses less readily in silicon than silicon does in the metal. An exemplary mixture includes 80% nickel and 20% cobalt. The silicon within the trench is allowed to fully silicide without void formation, despite a relatively high aspect ratio for the trench. Among other devices, recessed access devices (RADs) can be formed by the method for memory arrays.
    Type: Grant
    Filed: September 1, 2005
    Date of Patent: July 7, 2009
    Assignee: Micron Technology, Inc.
    Inventors: Hasan Nejad, Thomas A. Figura, Gordon A. Haller, Ravi Iyer, John Mark Meldrim, Justin Harnish
  • Patent number: 7557035
    Abstract: The invention provides a method of exposing low-k dielectric films to microwave radiation to cure the dielectric films. Microwave curing reduces the cure-time necessary to achieve the desired mechanical properties in the low-k films, thus decreasing the thermal exposure time for the NiSi transistor contacts. A lower thermal budget for interconnect fabrication is necessary to prevent damage to the NiSi transistor contacts and minimize thermal stressing of previously formed interconnect layers. Microwave-cured dielectric films also have higher mechanical strength and strong adhesion to overlying layers deposited during subsequent semiconductor device manufacturing steps.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: July 7, 2009
    Assignee: Advanced Micro Devices, Inc.
    Inventors: E. Todd Ryan, John A. Iacoponi
  • Patent number: 7553742
    Abstract: A method of forming a thin layer including providing a first single-crystalline silicon layer partially exposed through an opening in an insulation pattern and forming an epitaxial layer on the first single-crystalline silicon layer and forming an amorphous silicon layer on the insulation pattern, the amorphous silicon layer having a first portion adjacent the epitaxial layer and a second portion spaced apart from the first portion, wherein the amorphous silicon layer is formed on the insulation pattern at substantially the same rate at the first portion and at a second portion. The amorphous silicon layer may be formed to a uniform thickness without a thinning defect.
    Type: Grant
    Filed: January 11, 2006
    Date of Patent: June 30, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-Hoon Son, Yu-Gyun Shin, Jong-Wook Lee
  • Patent number: 7550787
    Abstract: Methods are disclosed for forming a varied impurity profile for a collector using scattered ions while simultaneously forming a subcollector. In one embodiment, the invention includes: providing a substrate; forming a mask layer on the substrate including a first opening having a first dimension; and substantially simultaneously forming through the first opening a first impurity region at a first depth in the substrate (subcollector) and a second impurity region at a second depth different than the first depth in the substrate. The breakdown voltage of a device can be controlled by the size of the first dimension, i.e., the distance of first opening to an active region of the device. Numerous different sized openings can be used to provide devices with different breakdown voltages using a single mask and single implant. A semiconductor device is also disclosed.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: June 23, 2009
    Assignee: International Business Machines Corporation
    Inventors: Douglas D. Coolbaugh, Louis D. Lanzerotti, Bradley A. Orner, Jay S. Rascoe, David C. Sheridan, Stephen A. St. Onge
  • Patent number: 7550851
    Abstract: A process is described that forms a low resistivity connection between a tungsten layer and a silicon surface with high adherence of the tungsten to the silicon. The silicon surface is plasma-cleaned to remove native oxide. A very thin layer (one or more monolayers) of Si-NH2 is formed on the silicon surface, serving as an adhesion layer. A WNx layer is formed over the Si-NH2 layer, using an atomic layer deposition (ALD) process, to serve as a barrier layer. A thick tungsten layer is formed over the WNx layer by CVD. An additional metal layer (e.g., aluminum) may be formed over the tungsten layer.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: June 23, 2009
    Assignee: Novellus Systems, Inc.
    Inventors: Huong T. Nguyen, Dennis Hausmann
  • Patent number: 7547928
    Abstract: The present invention recites a new method for manufacturing Group III-N field-effect devices, such as HEMT, MOSHFET, MISHFET devices or MESFET devices, grown by Metal-Organic Vapor Phase Expitaxy, with higher performance (power), by covering the surface with a thin SiN layer on the top AlGaN layer, in the reactor where the growth takes place at high temperature, prior cooling down the structure and loading the sample out of the reactor, as well as a method to produce some HEMT transistors on those heterostructures, by depositing the contact on the surface without any removal of the SiN layer by MOCVD. The present invention recites also a device.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: June 16, 2009
    Assignee: Interuniversitair Microelektronica Centrum (IMEC)
    Inventors: Marianne Germain, Joff Derluyn, Maarten Leys
  • Patent number: 7547618
    Abstract: A system and method is disclosed for providing a deep connection to a substrate or buried layer of a semiconductor device. Three shallow trenches are etched halfway through a layer of epitaxial silicon that is located on a substrate. A second doped layer is created in the epitaxial silicon layer at the bottom of the central shallow trench. First and third doped layers are created in the epitaxial silicon layer adjacent to the central shallow trench. An oxide layer is then deposited to fill the three trenches. The second doped layer is diffused vertically down to the substrate. The first and third doped layers are diffused vertically down to the second doped layer. Lateral diffusion of the first and third doped layers is constrained by the oxide layer in the three trenches.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: June 16, 2009
    Assignee: National Semiconductor Corporation
    Inventor: Richard W. Foote
  • Patent number: 7541200
    Abstract: The present invention provides methods of repairing damage to low-k dielectric film that is incurred by commonly used processes in IC fabrication. The methods may be integrated into an IC fabrication process flow at various stages. According to various embodiments, the methods of involve performing an IC fabrication process on a wafer on which a low-k film is deposited, and subsequently treating the film with a silylating agent to repair the damage done to the film during the process. Damage repair may be performed after one or more of the damaging process steps.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: June 2, 2009
    Assignee: Novellus Systems, Inc.
    Inventors: Bart J. van Schravendijk, Justin F. Gaynor
  • Patent number: 7541256
    Abstract: A method for fabricating a back-illuminated semiconductor imaging device on a semiconductor-on-insulator substrate, and resulting imaging device is disclosed. The method for manufacturing the imaging device includes the steps of providing a substrate comprising an insulator layer, and an epitaxial layer substantially overlying the insulator layer; fabricating at least one imaging component at least partially overlying and extending into the epitaxial layer; forming a plurality of bond pads substantially overlying the epitaxial layer; fabricating a dielectric layer substantially overlying the epitaxial layer and the at least one imaging component; providing a handle wafer; forming a plurality of conductive trenches in the handle wafer; forming a plurality of conductive bumps on a first surface of the handle wafer substantially underlying the conductive trenches; and bonding the plurality of conductive bumps to the plurality of bond pads.
    Type: Grant
    Filed: July 18, 2007
    Date of Patent: June 2, 2009
    Assignee: Sarnoff Corporation
    Inventors: Pradyumna Kumar Swain, Peter Levine, Mahalingam Bhaskaran, Norman Goldsmith
  • Patent number: 7541201
    Abstract: Disclosed are overlay targets having flexible symmetry characteristics and metrology techniques for measuring the overlay error between two or more successive layers of such targets. In one embodiment, a target includes structures for measuring overlay error (or a shift) in both the x and y direction, wherein the x structures have a different center of symmetry (COS) than the y structures. In another embodiment, one of the x and y structures is invariant with a 180° rotation and the other one of the x and y structures has a mirror symmetry. In one aspect, the x and y structures together are variant with a 180° rotation. In yet another example, a target for measuring overlay in the x and/or y direction includes structures on a first layer having a 180 symmetry and structures on a second layer having mirror symmetry.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: June 2, 2009
    Assignee: KLA-Tencor Technologies Corporation
    Inventor: Mark Ghinovker
  • Patent number: 7537967
    Abstract: A cleaning sheet with frame for cleaning a molding die comprising a cleaning heat main body that covers the entire mating surface of a molding die and a reinforcing frame which can be disposed along the peripheral edge to the outside of the plural cavities of the mating surface of the molding die, the cleaning sheet main body being formed with first through holes at positions corresponding to the cavities of the molding die, air vent slits and flow cavity recesses at positions corresponding to the air vents of the cavities, second through holes at positions corresponding to the pots of the molding die, and slits at positions corresponding to the runners of the molding die, thereby capable of improving the cleaning effect of the molding die and shortening the time for the cleaning operation to improve the productivity.
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: May 26, 2009
    Assignees: Renesas Technology Corp., Hitachi Yonezawa Electronics Co. Ltd.
    Inventor: Kiyoshi Tsuchida