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).

  • Publication number: 20150171223
    Abstract: The method for fabricating a semiconductor device is provided. A doped semiconductor layer is formed over the substrate. The doped semiconductor layer is patterned to form a plurality of doped semiconductor patterns. An implantation process is performed to implant a dopant into the doped semiconductor patterns. A process temperature of the implantation process is no more than about ?50° C. The dopants of the implantation process and the doped semiconductor patterns have the same conductivity type.
    Type: Application
    Filed: December 16, 2013
    Publication date: June 18, 2015
    Applicant: MACRONIX International Co., Ltd.
    Inventors: Jeng-Hwa Liao, Jung-Yu Shieh, Ling-Wuu Yang
  • Publication number: 20150110384
    Abstract: An image inspection method of die to database is provided, and the positions in the to-be-inspected chips within one wafer may be selected. In the method, a plurality of inspection areas in a plurality of positions in the to-be-inspected chips within a wafer are selected, a plurality of raw images of the inspection areas are obtained, and a plurality of locations of the raw images are then decoded. After that, an image extraction is performed on the raw images to obtain a plurality of image contours. Thereafter, the image contours are compared with a design database of the chip in order to obtain a result of a defect inspection, and execute the same thing in whole wafer.
    Type: Application
    Filed: May 9, 2014
    Publication date: April 23, 2015
    Applicant: MACRONIX International Co., Ltd.
    Inventors: Tuung Luoh, Hsiang-Chou Liao, Ling-Wuu Yang, Ta-Hone Yang, Kuang-Chao Chen
  • Patent number: 9006003
    Abstract: A method of detecting bitmap failure associated with physical coordinates is provided. In the method, data of wafer mapping inspection are obtained first, and the data include images of defects in each of layers within a wafer and a plurality of physical coordinates of the defects. Thereafter, a bitmap failure detection is performed to obtain digital coordinates of failure bits within the wafer. The digital coordinates are converted into a plurality of physical locations, and the physical locations are overlapped with the physical coordinates so as to rapidly obtain correlations between the failure bits and the defects.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: April 14, 2015
    Assignee: MACRONIX International Co., Ltd.
    Inventors: Tuung Luoh, Chi-Min Chen, Ling-Wuu Yang, Ta-Hone Yang, Kuang-Chao Chen
  • Patent number: 8735958
    Abstract: A blocking semiconductor layer minimizes penetration of implant species into a semiconductor layer beneath the blocking semiconductor layer. The blocking semiconductor layer may have grains with relatively fine or small grain sizes and/or may have a dopant in a relatively low concentration to minimize penetration of implant species into the semiconductor layer beneath the blocking semiconductor layer.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: May 27, 2014
    Assignee: Macronix International Co., Ltd.
    Inventors: Chun Ling Chiang, Wen-Ming Chang, Chun-Ming Cheng, Ling-Wuu Yang, Kuang-Chao Chen
  • Publication number: 20140117356
    Abstract: A semiconductor device includes a substrate, a semiconductor layer, and a material layer. The semiconductor layer is formed over the substrate. The material layer is formed over the semiconductor layer. The semiconductor layer and the material layer have a tapered profile in a vertical direction extending from the substrate.
    Type: Application
    Filed: October 30, 2012
    Publication date: May 1, 2014
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Jeng Hwa Liao, Jung Yu Shieh, Ling Wuu Yang
  • Publication number: 20140048866
    Abstract: An improved gate structure is provided whereby the gate structure is defined by a trench, the trench having a first oxide layer and a second oxide layer. The invention also provides methods for fabricating the gate structure of the invention defined by a trench having a first oxide layer and a second oxide layer.
    Type: Application
    Filed: August 17, 2012
    Publication date: February 20, 2014
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Jeng Hwa Liao, Jung Yu Shieh, Ling Wuu Yang
  • Patent number: 8594963
    Abstract: A method of predicting product yield may include determining defect characteristics for a product based at least in part on inspection data associated with critical layers of the product, determining yield loss for each of the critical layers, and estimating product yield based on the determined yield loss of the critical layers. A corresponding apparatus is also provided.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: November 26, 2013
    Assignee: Macronix International Co., Ltd.
    Inventors: Hsiang-Chou Liao, Che-Lun Hung, Tuung Luoh, Ling-Wuu Yang, Ta-Hone Yang, Kuang-Chao Chen
  • Patent number: 8581322
    Abstract: A method for making a nonvolatile memory device includes the following steps. A conductive structure is formed, wherein the conductive structure has a first top portion. The first top portion is converted into a second top portion having a domed surface.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: November 12, 2013
    Assignee: Macronix International Co., Ltd.
    Inventors: Chi-Pin Lu, Jung-Yu Hsieh, Ling-Wuu Yang
  • Publication number: 20130168754
    Abstract: A method of forming a semiconductor device is provided. The method includes providing a semiconductor substrate, and forming a first conductive layer over the substrate. In one example, an insulating layer may be formed over the semiconductor substrate, with the first conductive layer being formed over the insulating layer. The method also includes forming an interpoly dielectric layer over the first conductive layer. In this regard, forming the interpoly dielectric layer includes forming a silicon oxide layer, and subjecting the silicon oxide layer to oxide densification to form an oxide-densified silicon oxide layer. And the method includes forming a second conductive layer over the interpoly dielectric layer.
    Type: Application
    Filed: December 28, 2011
    Publication date: July 4, 2013
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Jeng Hwa Liao, Jung Yu Shieh, Ling Wuu Yang
  • Publication number: 20130001667
    Abstract: A method for making a nonvolatile memory device includes the following steps. A conductive structure is formed, wherein the conductive structure has a first top portion. The first top portion is converted into a second top portion having a domed surface.
    Type: Application
    Filed: June 28, 2011
    Publication date: January 3, 2013
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Chi-Pin Lu, Jung-Yu Hsieh, Ling-Wuu Yang
  • Patent number: 8169835
    Abstract: A band gap engineered, charge trapping memory cell includes a charge storage structure including a trapping layer. a blocking layer, and a dielectric tunneling structure including a thin tunneling layer, a thin bandgap offset layer and a thin isolation layer comprising silicon oxynitride. The memory cell is manufactured using low thermal budget processes.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: May 1, 2012
    Assignee: Macronix International Co., Ltd.
    Inventors: Jeng-Hwa Liao, Jung-Yu Shieh, Ling-Wuu Yang
  • Publication number: 20120053855
    Abstract: A method of predicting product yield may include determining defect characteristics for a product based at least in part on inspection data associated with critical layers of the product, determining yield loss for each of the critical layers, and estimating product yield based on the determined yield loss of the critical layers. A corresponding apparatus is also provided.
    Type: Application
    Filed: September 1, 2010
    Publication date: March 1, 2012
    Inventors: Hsiang-Chou Liao, Che-Lun Hung, Tuung Luoh, Ling-Wuu Yang, Ta-Hone Yang, Kuang-Chao Chen
  • Patent number: 7951707
    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: Grant
    Filed: March 21, 2007
    Date of Patent: May 31, 2011
    Assignee: Macronix International Co., Ltd.
    Inventors: Tuung Luoh, Ling-Wuu Yang, Kuang-Chao Chen
  • Patent number: 7938972
    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: Grant
    Filed: October 25, 2007
    Date of Patent: May 10, 2011
    Assignee: Macronix International Co., Ltd.
    Inventors: Tuung Luoh, Ling-Wuu Yang, Kuang-Chao Chen
  • Publication number: 20110075486
    Abstract: A band gap engineered, charge trapping memory cell includes a charge storage structure including a trapping layer. a blocking layer, and a dielectric tunneling structure including a thin tunneling layer, a thin bandgap offset layer and a thin isolation layer comprising silicon oxynitride. The memory cell is manufactured using low thermal budget processes.
    Type: Application
    Filed: September 28, 2009
    Publication date: March 31, 2011
    Applicant: Macronix International Co., Ltd.
    Inventors: Jeng-Hwa Liao, Jung-Yu Shieh, Ling-Wuu Yang
  • Patent number: 7888804
    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: May 1, 2008
    Date of Patent: February 15, 2011
    Assignee: Macronix International Co., Ltd.
    Inventors: Tuung Luoh, Ling-Wuu Yang, Kuang-Chao Chen
  • Patent number: 7629265
    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: Grant
    Filed: February 13, 2006
    Date of Patent: December 8, 2009
    Assignee: Macronix International Co., Ltd.
    Inventors: Chia-Wei Wu, Tuung Luoh, Ling-Wuu Yang, Kuang-Chao Chen
  • Patent number: 7553755
    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: Grant
    Filed: January 18, 2006
    Date of Patent: June 30, 2009
    Assignee: Macronix International Co., Ltd.
    Inventors: Sheng-Hui Hsieh, Ling-Wuu Yang, Chi-Tung Huang, Kuang-Chao Chen
  • Patent number: 7531411
    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: Grant
    Filed: October 12, 2005
    Date of Patent: May 12, 2009
    Assignee: Macronix International Co., Ltd.
    Inventors: Chi-Pin Lu, Ling-Wuu Yang, Kuang-Chao Chen
  • Publication number: 20090114973
    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: May 1, 2008
    Publication date: May 7, 2009
    Inventors: Tuung Luoh, Ling-Wuu Yang, Kuang-Chao Chen