Patents by Inventor Louis Lu-chen Hsu

Louis Lu-chen Hsu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8030113
    Abstract: The invention comprises a 3D chip stack with an intervening thermoelectric coupling (TEC) plate. Through silicon vias in the 3D chip stack transfer electronic signals among the chips in the 3D stack, power the TEC plate, as well as distribute heat in the stack from hotter chips to cooler chips.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: October 4, 2011
    Assignee: International Business Machines Corporation
    Inventors: Louis Lu-Chen Hsu, Ping-Chuan Wang, Xiaojin Wei, Huilong Zhu
  • Publication number: 20110175215
    Abstract: A method of forming a three-dimensional (3D) chip is provided in which a second chip is present embedded within a first chip. In one embodiment, the method includes forming a first chip including first electrical devices and forming a recess extending from a surface of the first chip. A second chip is formed having second electrical devices. The second chip is then encapsulated within the recess of the first chip. Interconnects are then formed through the first chip into electrical communication with at least one of the second devices on the second chip. A three-dimensional (3D) chip is also provided in which a second chip is embedded within a first chip.
    Type: Application
    Filed: January 19, 2010
    Publication date: July 21, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Mukta G. Farooq, Kangguo Cheng, Louis Lu-Chen Hsu
  • Patent number: 7984409
    Abstract: Design structure embodied in a machine readable medium for designing, manufacturing, or testing a design. The design structure comprises an insulating layer of a dielectric material, an opening having sidewalls extending from a top surface of the insulating layer toward a bottom surface of the insulating layer, and a conductive feature disposed in the opening. The design structure includes a top capping layer disposed on at least a top surface of the conductive feature and a conductive liner layer disposed between the insulating layer and the conductive feature along at least the sidewalls of the opening. The conductive liner layer of the design structure has sidewall portions that project above the top surface of the insulating layer adjacent to the sidewalls of the opening.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: July 19, 2011
    Assignee: International Business Machines Corporation
    Inventors: Louis Lu-Chen Hsu, Jack Allan Mandelman, William Robert Tonti, Chih-Chao Yang
  • Patent number: 7984408
    Abstract: Design structure embodied in a machine readable medium for designing, manufacturing, or testing a design. The design structure includes semiconductor device structures characterized by reduced junction capacitance and drain induced barrier lowering. The semiconductor device structure of the design structure includes a semiconductor layer and a dielectric layer disposed between the semiconductor layer and the substrate. The dielectric layer includes a first dielectric region with a first dielectric constant and a second dielectric region with a second dielectric constant that is greater than the first dielectric constant.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: July 19, 2011
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Louis Lu-Chen Hsu, Jack Allan Mandelman, Haining Yang
  • Patent number: 7968949
    Abstract: Contact forming methods and a related semiconductor device are disclosed. One method includes forming a first liner over the structure and the substrate, the first liner covering sidewall of the structure; forming a dielectric layer over the first liner and the structure; forming a contact hole in the dielectric layer to the first liner; forming a second liner in the contact hole including over the first liner covering the sidewall; removing the first and second liners at a bottom of the contact hole; and filling the contact hole with a conductive material to form the contact. The thicker liner(s) over the sidewall of the structure prevents shorting, and allows for at least maintaining any intrinsic stress in one or more of the liner(s).
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: June 28, 2011
    Assignee: International Business Machines Corporation
    Inventors: Daniel C. Edelstein, Louis Lu-Chen Hsu, Chih-Chao Yang
  • Patent number: 7948084
    Abstract: In a first aspect, a first method of manufacturing a dielectric material with a reduced dielectric constant is provided. The first method includes the steps of (1) forming a dielectric material layer including a trench on a substrate; and (2) forming a cladding region in the dielectric material layer by forming a plurality of air gaps in the dielectric material layer along at least one of a sidewall and a bottom of the trench so as to reduce an effective dielectric constant of the dielectric material. Numerous other aspects are provided.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: May 24, 2011
    Assignee: International Business Machines Corporation
    Inventors: Louis Lu-Chen Hsu, Jack Allan Mandelman, Chih-Chao Yang
  • Patent number: 7947566
    Abstract: A semiconductor processing method includes providing a substrate, forming a plurality of semiconductor layers in the substrate, each of the semiconductor layers being distinct and selected from different groups of semiconductor element types. The semiconductor layers include a first, second, and third semiconductor layers. The method further includes forming a plurality of lateral void gap isolation regions for isolating portions of each of the semiconductor layers from portions of the other semiconductor layers.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: May 24, 2011
    Assignee: International Business Machines Corporation
    Inventors: Howard Hao Chen, Louis Lu-Chen Hsu, Jack Allan Mandelman
  • Publication number: 20110104846
    Abstract: The invention comprises a 3D chip stack with an intervening thermoelectric coupling (TEC) plate. Through silicon vias in the 3D chip stack transfer electronic signals among the chips in the 3D stack, power the TEC plate, as well as distribute heat in the stack from hotter chips to cooler chips.
    Type: Application
    Filed: January 6, 2011
    Publication date: May 5, 2011
    Applicant: International Business Machines Corporation
    Inventors: Louis Lu-Chen Hsu, Ping-Chuan Wang, Xiaojin Wei, Huilong Zhu
  • Patent number: 7930664
    Abstract: Through silicon vias (TSVs) in silicon chips are both programmable and non-programmable. The programmable TSVs may employ metal/insulator/metal structures to switch from an open to shorted condition with programming carried out by complementary circuitry on two adjacent chips in a multi-story chip stack.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: April 19, 2011
    Assignee: International Business Machines Corporation
    Inventors: Kai Di Feng, Louis Lu-Chen Hsu, Ping-Chuan Wang, Zhijian Yang
  • Patent number: 7915682
    Abstract: Semiconductor structures in which the gate electrode of a FinFET is masked from the process introducing dopant into the fin body of the FinFET to form source/drain regions and methods of fabricating such semiconductor structures. The gate doping, and hence the work function of the gate electrode, is advantageously isolated from the process that dopes the fin body to form the source/drain regions. The sidewalls of the gate electrode are covered by sidewall spacers that are formed on the gate electrode but not on the sidewall of the fin body.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: March 29, 2011
    Assignee: International Business Machines Corporation
    Inventors: Louis Lu-Chen Hsu, Jack Allan Mandelman
  • Patent number: 7911263
    Abstract: A dormant mode target semiconductor device within a leakage current target unit is identified for mitigating leakage current to prevent it from reaching catastrophic runaway. A leakage current shift monitor unit is electrically connected to the output node of the leakage current target unit and collects leakage current from the selected target semiconductor device for two consecutive predefined temporal periods and measures the difference between the collected leakage currents. A comparator receives and compares the outputs of the current shift monitor unit and a reference voltage generator. The comparator propagates an alert signal to the leakage current target unit when the leakage voltage output from the leakage current shift monitor unit exceeds the reference voltage, a condition that indicates that the leakage current is about to approach catastrophic runaway levels.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: March 22, 2011
    Assignee: International Business Machines Corporation
    Inventors: Jong-Ru Guo, Louis Lu-Chen Hsu, Rajiv Vasant Joshi, Ping-Chuan Wang, Zhijian Yang
  • Patent number: 7898014
    Abstract: Semiconductor device structures with self-aligned doped regions and methods for forming such semiconductor device structures. The semiconductor structure comprises first and second doped regions of a first conductivity type defined in the semiconductor material of a substrate bordering a sidewall of a trench. An intervening region of the semiconductor material separates the first and second doped regions. A third doped region is defined in the semiconductor material bordering the sidewall of the trench and disposed between the first and second doped regions. The third doped region is doped to have a second conductivity type opposite to the first conductivity type. Methods for forming the doped regions involve depositing either a layer of a material doped with both dopants or different layers each doped with one of the dopants in the trench and, then, diffusing the dopants from the layer or layers into the semiconductor material bordering the trench sidewall.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: March 1, 2011
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Louis Lu-Chen Hsu, Jack Allan Mandelman
  • Patent number: 7893529
    Abstract: The invention comprises a 3D chip stack with an intervening thermoelectric coupling (TEC) plate. Through silicon vias in the 3D chip stack transfer electronic signals among the chips in the 3D stack, power the TEC plate, as well as distribute heat in the stack from hotter chips to cooler chips.
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: February 22, 2011
    Assignee: International Business Machines Corporation
    Inventors: Louis Lu-Chen Hsu, Ping-Chuan Wang, Xiaojin Wei, Huilong Zhu
  • Publication number: 20110034021
    Abstract: Through silicon vias (TSVs) in silicon chips are both programmable and non-programmable. The programmable TSVs may employ metal/insulator/metal structures to switch from an open to shorted condition with programming carried out by complementary circuitry on two adjacent chips in a multi-story chip stack.
    Type: Application
    Filed: September 20, 2010
    Publication date: February 10, 2011
    Applicant: International Business Machines Corporation
    Inventors: Kai Di Feng, Louis Lu-Chen Hsu, Ping-Chuan Wang, Zhijian Yang
  • Patent number: 7875960
    Abstract: A semiconductor structure with an insulating layer on a silicon substrate, a plurality of electrically-isolated silicon-on-insulator (SOI) regions separated from the substrate by the insulating layer, and a plurality of electrically-isolated silicon bulk regions extending through the insulating layer to the substrate. Each of one number of the SOI regions is oriented with a first crystal orientation and each of another number of the SOI regions is oriented with a second crystal orientation that differs from the first crystal orientation. The bulk silicon regions are each oriented with a third crystal orientation. Damascene or imprinting methods of forming the SOI regions and bulk silicon regions are also provided.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: January 25, 2011
    Assignee: International Business Machines Corporation
    Inventors: Louis Lu-Chen Hsu, Jack Allan Mandelman, William Robert Tonti
  • Patent number: 7863960
    Abstract: A central reference clock is placed in a substantially middle chip of a 3-D chip-stack. The central reference clock is distributed to each child chip of the 3-D chip-stack, so that a plurality of clocks is generated for each individual chip in the 3-D-stack in a synchronous manner. A predetermined number of through-silicon-vias and on-chip wires are employed to form a delay element for each slave clock, ensuring that the clock generated for each child chip is substantially synchronized. Optionally, an on-chip clock trimming circuit is embedded for further precision tuning to eliminate local clock skews.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: January 4, 2011
    Assignee: International Business Machines Corporation
    Inventors: Ping-Chuan Wang, Anthony R. Bonaccio, Jong-Ru Guo, Louis Lu-Chen Hsu
  • Publication number: 20100327958
    Abstract: A dormant mode target semiconductor device within a leakage current target unit is identified for mitigating leakage current to prevent it from reaching catastrophic runaway. A leakage current shift monitor unit is electrically connected to the output node of the leakage current target unit and collects leakage current from the selected target semiconductor device for two consecutive predefined temporal periods and measures the difference between the collected leakage currents. A comparator receives and compares the outputs of the current shift monitor unit and a reference voltage generator. The comparator propagates an alert signal to the leakage current target unit when the leakage voltage output from the leakage current shift monitor unit exceeds the reference voltage, a condition that indicates that the leakage current is about to approach catastrophic runaway levels.
    Type: Application
    Filed: June 30, 2009
    Publication date: December 30, 2010
    Inventors: Jong-Ru Guo, Louis Lu-Chen Hsu, Rajiv Vasant Joshi, Ping-Chuan Wang, Zhijian Yang
  • Publication number: 20100320563
    Abstract: A structure. The structure includes: a substrate; a first electrode in the substrate; a dielectric layer on top of the substrate and the electrode; a second dielectric layer on the first dielectric layer, said second dielectric layer comprising a second dielectric material; a fuse element buried in the first dielectric layer, wherein the fuse element (i) physically separates, (ii) is in direct physical contact with both, and (iii) is sandwiched between a first region and a second region of the dielectric layer; and a second electrode on top of the fuse element, wherein the first electrode and the second electrode are electrically coupled to each other through the fuse element.
    Type: Application
    Filed: August 30, 2010
    Publication date: December 23, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Louis Lu-Chen Hsu, Jack Allan Mandelman, William Robert Tonti, Chih-Chao Yang
  • Publication number: 20100301475
    Abstract: Systems and methods are disclosed that enable forming semiconductor chip connections. In one embodiment, the semiconductor chip includes a body having a polyhedron shape with a pair of opposing sides; and a solder member extending along a side that extends between the pair of opposing sides of the polyhedron shape.
    Type: Application
    Filed: May 26, 2009
    Publication date: December 2, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Louis Lu-Chen Hsu, Kangguo Cheng, Timothy J. Dalton, Mukta G. Farooq, John A. Fitzsimmons
  • Patent number: 7839163
    Abstract: Through silicon vias (TSVs) in silicon chips are both programmable and non-programmable. The programmable TSVs may employ metal/insulator/metal structures to switch from an open to shorted condition with programming carried out by complementary circuitry on two adjacent chips in a multi-story chip stack.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: November 23, 2010
    Assignee: International Business Machines Corporation
    Inventors: Kai Di Feng, Louis Lu-Chen Hsu, Ping-Chuan Wang, Zhijian Yang