Patents by Inventor Ling-Wuu Yang

Ling-Wuu Yang 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: 7517780
    Abstract: A method of manufacturing a semiconductor device includes providing a first layer over a wafer substrate, providing a polysilicon layer over the first layer, implanting nitrogen ions into the polysilicon layer, forming a polycide layer over the polysilicon layer, and forming source and drain regions.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: April 14, 2009
    Assignee: Macronix International Co., Ltd.
    Inventors: Ling-Wuu Yang, Kuang-Chao Chen, Tuung Luoh
  • Publication number: 20090081859
    Abstract: A metallization process is provided. The metallization process comprises the following steps. First, a semiconductor base having at least a silicon-containing conductive region is provided. Afterwards, nitrogen ions are implanted into the silicon-containing conductive region. Next, a first thermal process is performed on the semiconductor base for repairing the surface of the semiconductor base. Then, a metal layer is formed on the surface of the semiconductor base and the metal layer covers the silicon-containing conductive region. Lastly, a second thermal process is performed on the semiconductor base covered with the metal layer so as to form a metal silicide layer on the silicon-containing conductive region.
    Type: Application
    Filed: September 20, 2007
    Publication date: March 26, 2009
    Applicant: Macronix International Co., Ltd.
    Inventors: Tuung Luoh, Ling-Wuu Yang, Chin-Ta Su, Ta-Hung Yang, Kuang-Chao Chen
  • Publication number: 20080299761
    Abstract: An interconnection process is provided. The process includes the following steps. Firstly, a semiconductor base having at least a electrical conductive region is provided. Next, a dielectric layer with a contact hole is formed to cover the semiconductor base, wherein the contact hole exposes part of the electrical conductive region. Then, a thermal process is performed on the semiconductor base covered with the dielectric layer. Lastly, a conductive layer is formed on the dielectric layer, wherein the conductive layer is electrically connected to the electrical conductive region through the contact hole.
    Type: Application
    Filed: June 1, 2007
    Publication date: December 4, 2008
    Applicant: Macronix International Co., Ltd.
    Inventors: Tuung Luoh, Ling-Wuu Yang, Chin-Ta Su, Ta-Hung Yang, Kuang-Chao Chen
  • Patent number: 7442620
    Abstract: A process for forming STI regions comprises performing an In Situ Steam Generation (ISSG) radical conversion on a SiN liner layer within an STI trench in order to expose the top corner of the trench and simultaneously cause rounding the top corner of a liner oxide layer within the trench. The rounding of the liner oxide layer can prevent thinning of a subsequently formed gate oxide.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: October 28, 2008
    Assignee: Macronix International Co., Ltd.
    Inventors: Chia-Wei Wu, Jung-Yu Shieh, Ling-Wuu Yang
  • Publication number: 20080233735
    Abstract: An etching method for semiconductor element is provided. The etching method includes the following procedure. First, a to-be-etched substrate is provided. Then, a silicon-rich silicon oxide (SRO) layer is formed on the to-be-etched substrate. Afterwards, an anti-reflective layer is formed on the SRO layer. Then, a patterned photo resist layer is formed on the anti-reflective layer. Afterwards, the anti-reflective layer, the SRO layer and the to-be-etched substrate is etched so as to form an opening.
    Type: Application
    Filed: March 21, 2007
    Publication date: September 25, 2008
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Tuung Luoh, Ling-Wuu Yang, Kuang-Chao Chen
  • Patent number: 7382054
    Abstract: The present invention relates generally to semiconductors, and more specifically to semiconductor memory device structures and an improved fabrication process for making the same. The improved fabrication process allows the self-aligned contacts and local interconnects to the processed simultaneously. The process allows the minimal distance requirement between the self-aligned contacts and the local interconnects to be widened, which makes the patterning of self-aligned contacts and local interconnects easier. The widened minimal distance requirement also allows further memory cell shrinkage. The improved structures of self-aligned contacts and local interconnects also have excellent isolation characteristic.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: June 3, 2008
    Assignee: Macronix International Co., Ltd.
    Inventors: Tuung Luoh, Ling-Wuu Yang, Kuang-Chao Chen
  • Publication number: 20080099427
    Abstract: A fabrication method of an electronic device is provided. First, a substrate is provided. Then, a patterned amorphous carbon (?-C) layer is formed on the substrate and exposes part of the substrate. Next, a first ?-C layer covering the patterned ?-C layer and part of the substrate is formed. Then, part of the substrate and part of the first ?-C layer covering part of the substrate are removed, so as to form a patterned substrate and a second ?-C layer.
    Type: Application
    Filed: October 25, 2007
    Publication date: May 1, 2008
    Applicant: Macronix International Co., Ltd.
    Inventors: Tuung Luoh, Ling-Wuu Yang, Kuang-Chao Chen
  • Patent number: 7335610
    Abstract: Semiconductor structures and methods of fabricating semiconductor structures are disclosed. The method comprises the steps of: providing an initial semiconductor structure; forming a non-silicon layer overlying the initial semiconductor structure, the non-silicon layer having an extinction coefficient greater than zero at wavelengths below about 300 nanometers; and performing a plasma-based process to form a layer overlying the non-silicon layer, the non-silicon layer preventing the ultraviolet radiation generated during the plasma-based process from damaging the initial semiconductor structure.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: February 26, 2008
    Assignee: Macronix International Co., Ltd.
    Inventors: Tuung Luoh, Ling Wuu Yang, Kuang Chao Chen
  • Publication number: 20070298583
    Abstract: A method for forming a shallow trench isolation region (STI) is disclosed. The method comprises the steps of sequentially forming a pad oxide layer and a nitride silicon layer over a provided substrate. Next, the pad oxide layer, the nitride silicon layer, and the substrate are partially etched to form a trench. An oxide liner and a nitride liner are then formed in the trench. Subsequently, a two-stage high-density plasma chemical vapor deposition process is performed to form a shallow trench isolation region.
    Type: Application
    Filed: June 27, 2006
    Publication date: December 27, 2007
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Chia-Wei Wu, Chen-Wei Liao, Jung-Yu Hsieh, Ling-Wuu Yang, Chin-Ta Su, Chi-Tung Huang
  • Publication number: 20070293034
    Abstract: A semiconductor device with an unlanded via having an air gap dielectric layer and a silicon-rich oxide (SRO) inter-metal dielectric (IMD) layer, and a method of making the same are provided. The SRO layer acts as an etch-stop layer to prevent unlanded via penetration completely through the IMD layer. In addition, the SRO has a higher extinction coefficient (k) than conventional high-density plasma (HDP) oxide layers, thereby preventing plasma etch damage and excessive void formation in an unlanded via.
    Type: Application
    Filed: June 15, 2006
    Publication date: December 20, 2007
    Inventors: Tuung Luoh, Ling-Wuu Yang, Kuang-Chao Chen
  • Publication number: 20070287260
    Abstract: A process for forming STI regions comprises performing an In Situ Steam Generation (ISSG) radical conversion on a SiN liner layer within an STI trench in order to expose the top corner of the trench and simultaneously cause rounding the top corner of a liner oxide layer within the trench. The rounding of the liner oxide layer can prevent thinning of a subsequently formed gate oxide.
    Type: Application
    Filed: June 13, 2006
    Publication date: December 13, 2007
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Chia-Wei Wu, Jung-Yu Shieh, Ling-Wuu Yang
  • Publication number: 20070235798
    Abstract: The present invention relates generally to semiconductors, and more specifically to semiconductor memory device structures and an improved fabrication process for making the same. The improved fabrication process allows the self-aligned contacts and local interconnects to the processed simultaneously. The process allows the minimal distance requirement between the self-aligned contacts and the local interconnects to be widened, which makes the patterning of self-aligned contacts and local interconnects easier. The widened minimal distance requirement also allows further memory cell shrinkage. The improved structures of self-aligned contacts and local interconnects also have excellent isolation characteristic.
    Type: Application
    Filed: April 7, 2006
    Publication date: October 11, 2007
    Inventors: Tuung Luoh, Ling-Wuu Yang, Kuang-Chao Chen
  • Publication number: 20070212833
    Abstract: A nitride read only memory comprises a selectively grown, epitaxial, shunt silicon layer (shunt layer) that reduces the bit line sheet resistance and increases bit line mobility. The shunt layer can be grown by a in situ, P-doped deposit at high temperature. A bit line interface without native oxide and excellent electron mobility can be achieved using the methods for selective epitaxial growth described herein.
    Type: Application
    Filed: March 13, 2006
    Publication date: September 13, 2007
    Inventors: Chi-Pin Lu, Ling-Wuu Yang, Kuang-Chao Chen
  • Publication number: 20070190797
    Abstract: A novel cleaning method for preventing defects and particles resulting from post tungsten etch back or tungsten chemical mechanical polish is provided. The cleaning method comprises providing a stack structure of a semiconductor device including a tungsten plug in a dielectric layer. The tungsten plug has a top excess portion. A surface of the stack structure is then contacted with a cleaning solution comprising hydrogen peroxide. Next, the surface of the stack structure is contacted with dilute hydrofluoric acid. The cleaning solution and hydrofluoric acid are capable of removing the top excess portion and particles on the surface of the stack structure.
    Type: Application
    Filed: February 13, 2006
    Publication date: August 16, 2007
    Inventors: Chia-Wei Wu, Tuung Luoh, Ling-Wuu Yang, Kuang-Chao Chen
  • Publication number: 20070167007
    Abstract: A method for symmetric deposition of metal layer over a metal layer registration key comprises using MOCVD to form the metal layer. Once the symmetric metal layer is formed, a metal layer registration key can be accurately detected and the metal layer registration key overlay shift can be improved.
    Type: Application
    Filed: January 18, 2006
    Publication date: July 19, 2007
    Inventors: Sheng-Hui Hsieh, Ling-Wuu Yang, Chi-Tung Huang, Kuang-Chao Chen
  • Publication number: 20070082447
    Abstract: A non-volatile memory structure comprises a trapping layer that includes a plurality of silicon-rich, silicon nitride layers. Each of the plurality of silicon-rich, silicon nitride layers can trap charge and thereby increase the density of memory structures formed using the methods described herein. In one aspect, the plurality of silicon-rich, silicon nitride layers are fabricated by converting an amorphous silicon layer by remote plasma nitrogen (RPN).
    Type: Application
    Filed: October 12, 2005
    Publication date: April 12, 2007
    Inventors: Chi-Pin Lu, Ling-Wuu Yang, Kuang-Chao Chen
  • Publication number: 20060172519
    Abstract: A method of manufacturing a semiconductor device includes providing a first layer over a wafer substrate, providing a polysilicon layer over the first layer, implanting nitrogen ions into the polysilicon layer, forming a polycide layer over the polysilicon layer, and forming source and drain regions.
    Type: Application
    Filed: January 28, 2005
    Publication date: August 3, 2006
    Inventors: Ling-Wuu Yang, Kuang-Chao Chen, Tuung Luoh
  • Patent number: 7045419
    Abstract: A method of forming a semiconductor device that includes providing a semiconductor substrate, forming a first insulating layer over the semiconductor substrate, forming a floating gate over the first insulating layer with a reaction gas, wherein the floating gate comprises a microcrystalline material having a grain size of about 50–300 ?, forming a second insulating layer over the floating gate, and forming a control gate over the second insulating layer.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: May 16, 2006
    Assignee: Macronix International Co., Ltd.
    Inventors: Tuung Luoh, Ling-Wuu Yang, Donald Huang, Kuang-Chao Chen
  • Patent number: 6943118
    Abstract: In a method of fabricating a flash memory, a tunneling dielectric layer, a first conductive layer and a mask layer are sequentially formed on a substrate to form a gate structure. Buried source/drain regions are then formed in the substrate between the strips. The strips are further patterned into floating gate structures. An insulation layer is formed sideways adjacent to the gate structure. The insulation layer has a top surface lower than a top surface of the first conductive layer of the gate structure. The mask layer is removed, and an additional conductive layer is formed on the first conductive layer in a manner to extend over the adjacent insulation layer. The first and additional conductive layers form a floating gate. A gate dielectric layer is formed on the floating gate, and a control gate is formed on the gate dielectric layer.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: September 13, 2005
    Assignee: Macronix International Co., Ltd.
    Inventors: Kuang-Chao Chen, Jui-Lin Lu, Ling-Wuu Yang
  • Publication number: 20050130398
    Abstract: A method of forming a semiconductor device that includes providing a semiconductor substrate, forming a first insulating layer over the semiconductor substrate, forming a floating gate over the first insulating layer with a reaction gas, wherein the floating gate comprises a microcrystalline material having a grain size of about 50-300 ?, forming a second insulating layer over the floating gate, and forming a control gate over the second insulating layer.
    Type: Application
    Filed: December 12, 2003
    Publication date: June 16, 2005
    Inventors: Tuung Luoh, Ling-Wuu Yang, Donald Huang, Kuang-Chao Chen