Patents by Inventor Tung Chang

Tung Chang 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: 10644016
    Abstract: A structure and method for providing improved and reliable charge trapping memory device are disclosed herein. A charge trapping field effect transistor (FET) comprising a semiconductor substrate, a doped region in the semiconductor substrate, and a gate structure on the semiconductor substrate and a method of fabricating the same are also discussed. The doped region comprises a first lateral dimension along a first direction. The gate structure comprises a charge trapping dielectric region and a charge trapping conductive region in contact with the charge trapping dielectric region.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: May 5, 2020
    Assignee: Cypress Semiconductor Corporation
    Inventors: Kuo Tung Chang, Shenqing Fang, Timothy Thurgate
  • Patent number: 10622370
    Abstract: A method for fabricating a memory device with a self-aligned trap layer and rounded active region corners is disclosed. In the present invention, an STI process is performed before any of the charge-trapping and top-level layers are formed. Immediately after the STI process, the sharp corners of the active regions are exposed. Because these sharp corners are exposed at this time, they are available to be rounded through any number of known rounding techniques. Rounding the corners improves the performance characteristics of the memory device. Subsequent to the rounding process, the charge-trapping structure and other layers can be formed by a self-aligned process.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: April 14, 2020
    Assignee: Monterey Research, LLC
    Inventors: Tim Thurgate, Shenqing Fang, Kuo-Tung Chang, Youseok Suh, Meng Ding, Hidehiko Shiraiwa, Amol Ramesh Joshi, Hapreet Sachar, David Matsumoto, Lovejeet Singh, Chih-Yuh Yang
  • Publication number: 20200098709
    Abstract: An electronic device package includes a first substrate, a second substrate and a conductive layer. The first substrate includes a first bonding pad, and a cavity exposing the first bonding pad. The second substrate is laminated on the first substrate. The second substrate includes a second bonding pad at least partially inserting into the cavity of the first substrate. The conductive layer is disposed in the cavity and at least between the first bonding pad and the second bonding pad to connect the first bonding pad and the second bonding pad.
    Type: Application
    Filed: June 26, 2019
    Publication date: March 26, 2020
    Applicant: Advanced Semiconductor Engineering, Inc.
    Inventors: Cheng-Nan LIN, Wei-Tung CHANG, Jen-Chieh KAO, Huei-Shyong CHO
  • Patent number: 10516044
    Abstract: A memory device includes a number of memory cells and a dielectric layer formed over the memory cells. The memory device also includes contacts formed in the dielectric layer and spacers formed adjacent the side surfaces of the contacts. The spacers may inhibit leakage currents from the contacts.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: December 24, 2019
    Assignee: Cypress Semiconductor Corporation
    Inventors: Angela T. Hui, Wenmei Li, Minh Van Ngo, Amol Ramesh Joshi, Kuo-Tung Chang
  • Publication number: 20190385853
    Abstract: A semiconductor device having a substrate, a dielectric layer, a polycrystalline silicon (“poly”) resistor, a drain, and a source is disclosed. After implantation, the poly resistor may have a lateral doping profile with two peaks, one near each edge of the poly resistor, and a trough near the middle of the poly resistor. Such a doping profile can allow the poly resistor to have a resistance that is insensitive to small variations in critical dimension of the poly resistor. The resistance of the poly resistor may be determined by the doping dose of the tilted implant used to form the poly resistor. The tilted implant may be used to form the drain and the source of a transistor substantially simultaneously as forming the poly resistor.
    Type: Application
    Filed: June 26, 2019
    Publication date: December 19, 2019
    Applicant: Cypress Semiconductor Corporation
    Inventors: Shenqing Fang, Timothy Thurgate, Kuo Tung Chang
  • Publication number: 20190386109
    Abstract: A semiconductor device and method of making the same are disclosed. The semiconductor device includes a memory gate on a charge storage structure formed on a substrate, a select gate on a gate dielectric on the substrate proximal to the memory gate, and a dielectric structure between the memory gate and the select gate, and adjacent to sidewalls of the memory gate and the select gate, wherein the memory gate and the select gate are separated by a thickness of the dielectric structure. Generally, the dielectric structure comprises multiple dielectric layers including a first dielectric layer adjacent the sidewall of the memory gate, and a nitride dielectric layer adjacent to the first dielectric layer and between the memory gate and the select gate. Other embodiments are also disclosed.
    Type: Application
    Filed: July 19, 2019
    Publication date: December 19, 2019
    Applicant: Cypress Semiconductor Corporation
    Inventors: Shenqing Fang, Chun Chen, Unsoon KIM, Mark Ramsbey, Kuo Tung Chang, Sameer HADDAD, James Pak
  • Patent number: 10497710
    Abstract: A semiconductor device and method of making the same are disclosed. The semiconductor device includes a metal-gate logic transistor formed in a first region of a substrate, and a non-volatile memory (NVM) cell including a select gate and a memory gate formed in a first recess in a second region of the same substrate, wherein the recess is recessed relative to a first surface of the substrate. The metal-gate logic transistor includes a planarized surface above and substantially parallel to the first surface, and top surfaces of the select gate and memory gate are approximately at or below an elevation of the planarized surface of the metal-gate. Generally, at least one of the top surfaces of the select gate or the memory gate includes a silicide formed thereon. Other embodiments are also disclosed.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: December 3, 2019
    Assignee: Cypress Semiconductor Corporation
    Inventors: Sung-Taeg Kang, James Pak, Unsoon Kim, Inkuk Kang, Chun Chen, Kuo-Tung Chang
  • Patent number: 10498339
    Abstract: Methods and apparatuses pertaining to hold-time compensation using free metal segments or other electrically-conductive segments of an IC are described. An integrated circuit (IC) having free segment hold-time compensation may include a monolithic semiconductor substrate which has a first device and a second device disposed thereon. In addition, the IC may include an electrical node electrically connecting the first and second devices. The electrical node may include one or more electrically-conductive elements that contribute to a total capacitance at the electrical node such that the total capacitance at the electrical node has a value that fulfills a hold-time requirement at the electrical node.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: December 3, 2019
    Assignee: MEDIATEK INC.
    Inventors: Chien-Pang Lu, Yu-Tung Chang, Yu-Ming Yang
  • Patent number: 10446245
    Abstract: A memory device includes a memory array arranged in rows and columns. The memory array may have at least four non-volatile memory (NVM) cells coupled in the same column of the memory array, in which each NVM cell may include a memory gate. The first and second NVM cells of the at least four NVM cells may share a first source region, and the third and fourth NVM cells may share a second source region. The memory gates of the first and second NVM cells may not be electrically coupled with one another, and the first and second source regions may not be electrically coupled with one another. Each of the first and second source regions may be electrically coupled with at least another source region of the same column in the memory array.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: October 15, 2019
    Assignee: Cypress Semiconductor Corporation
    Inventors: Chun Chen, Yoram Betser, Kuo Tung Chang, Amichai Givant, Shivananda Shetty, Shenqing Fang
  • Publication number: 20190304990
    Abstract: A semiconductor device and method of fabricating the same are disclosed. The method includes depositing a polysilicon gate layer over a gate dielectric formed over a surface of a substrate in a peripheral region, forming a dielectric layer over the polysilicon gate layer and depositing a height-enhancing (HE) film over the dielectric layer. The HE film, the dielectric layer, the polysilicon gate layer and the gate dielectric are then patterned for a high-voltage Field Effect Transistor (HVFET) gate to be formed in the peripheral region. A high energy implant is performed to form at least one lightly doped region in a source or drain region in the substrate adjacent to the HVFET gate. The HE film is then removed, and a low voltage (LV) logic FET formed on the substrate in the peripheral region. In one embodiment, the LV logic FET is a high-k metal-gate logic FET.
    Type: Application
    Filed: March 4, 2019
    Publication date: October 3, 2019
    Applicant: Cypress Semiconductor Corporation
    Inventors: Chun Chen, James Pak, Unsoon KIM, Inkuk Kang, Sung-Taeg Kang, Kuo Tung Chang
  • Patent number: 10415962
    Abstract: A non-contact and optical measuring automation system, configured to electrically connect to a computer to measure the profile accuracy of a disk cam, includes a base, a rotating chuck, a moving stage module and a laser displacement meter. The rotating chuck is disposed for clamping the disk cam. The moving stage module includes a first linear motion stage movable relative to the base in a first direction and a second linear motion stage movable relative to the first linear motion stage in a second direction. The computer is able to control the rotation of the rotating chuck and the movement of the moving stage module, and is able to control a beam emitted from the laser displacement meter projecting onto a profile surface of the disk cam so as to obtain a profile deviation value of the disk cam by using the laser triangulation method.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: September 17, 2019
    Assignee: National Taiwan Ocean University
    Inventors: Wen-Tung Chang, Chun-Cheng Lu, Hsiang-Lun Kao
  • Publication number: 20190279729
    Abstract: Techniques for suppression of program disturb in flash memory devices are described herein. In an example embodiment, a method for suppression of program disturb in a flash memory array is provided. The flash memory array comprises rows and columns of memory cells, where the memory cells in each row are coupled to a source line and to a select-gate (SG) line, and the memory cells in each column are coupled to a respective bit line (BL). During a program memory operation, a first voltage, of a selected SG line, and a second voltage, of an unselected BL, are regulated independently of a power supply voltage of the flash memory array, where the first voltage is regulated in a first range of 0.9V to 1.1V and the second voltage is regulated in a second range of 0.4V to 1.2V.
    Type: Application
    Filed: February 6, 2019
    Publication date: September 12, 2019
    Applicant: Cypress Semiconductor Corporation
    Inventors: Chun Chen, Kuo Tung Chang, Yoram Betser, Shivananda Shetty, Giovanni Mazzeo, Tio Wei Neo, Pawan Singh
  • Patent number: 10403731
    Abstract: A semiconductor device and method of making the same are disclosed. The semiconductor device includes a memory gate on a charge storage structure formed on a substrate, a select gate on a gate dielectric on the substrate proximal to the memory gate, and a dielectric structure between the memory gate and the select gate, and adjacent to sidewalls of the memory gate and the select gate, wherein the memory gate and the select gate are separated by a thickness of the dielectric structure. Generally, the dielectric structure comprises multiple dielectric layers including a first dielectric layer adjacent the sidewall of the memory gate, and a nitride dielectric layer adjacent to the first dielectric layer and between the memory gate and the select gate. Other embodiments are also disclosed.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: September 3, 2019
    Assignee: Cypress Semiconductor Corporation
    Inventors: Shenqing Fang, Chun Chen, Unsoon Kim, Mark Ramsbey, Kuo Tung Chang, Sameer Haddad, James Pak
  • Publication number: 20190261801
    Abstract: A disposable liquid-binding floor mat includes a water penetration layer, a water absorption layer, a water-proof layer and a self-adhesive layer. The water penetration layer is a thin piece of non-woven fabric and is superimposed on the water absorption layer. The water absorption layer is made of a hydrophilic thin plate and is superimposed between the water penetration layer and the water-proof layer. The water-proof layer is made of a water-proof film material and is superimposed between the water absorption layer and the self-adhesive layer. The self-adhesive layer is made of a self-adhesive material and is superimposed below the water-proof layer. The water penetration layer, the water absorption layer, the water-proof layer and the self-adhesive layer are bonded as an integrated non-sealed edge structure, and a deodorant is added into the water absorption layer.
    Type: Application
    Filed: August 13, 2018
    Publication date: August 29, 2019
    Inventors: Cheng-Chung CHIU, Wen-Tung CHANG
  • Publication number: 20190198124
    Abstract: A memory device includes a memory array arranged in rows and columns. The memory array may have at least four non-volatile memory (NVM) cells coupled in the same column of the memory array, in which each NVM cell may include a memory gate. The first and second NVM cells of the at least four NVM cells may share a first source region, and the third and fourth NVM cells may share a second source region. The memory gates of the first and second NVM cells may not be electrically coupled with one another, and the first and second source regions may not be electrically coupled with one another. Each of the first and second source regions may be electrically coupled with at least another source region of the same column in the memory array.
    Type: Application
    Filed: December 20, 2018
    Publication date: June 27, 2019
    Applicant: Cypress Semiconductor Corporation
    Inventors: Chun Chen, Yoram Betser, Kuo Tung Chang, Amichai Givant, Shivananda Shetty, Shenqing Fang
  • Patent number: 10331250
    Abstract: A touch panel is provided. The touch panel includes a substrate having a touch area and a peripheral area adjacent to the touch area. A transparent conductive layer is disposed on the substrate, the transparent conductive layer includes a touch-sensing portion and a wiring portion, wherein the touch-sensing portion is electrically connected to the wiring portion, and wherein the touch-sensing portion is disposed corresponding to the touch area and the wiring portion is disposed corresponding to the peripheral area. A metal layer is disposed on the wiring portion of the transparent conductive layer and corresponding to the peripheral area. An insulating layer is disposed on the metal layer and corresponding to the peripheral area. A touch display device including the touch panel is also provided.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: June 25, 2019
    Assignee: INNOLUX CORPORATION
    Inventors: Wei-Chih Chen, Tung-Chang Tsai, Hung-Sheng Cho
  • Patent number: 10242996
    Abstract: A semiconductor device and method of fabricating the same are disclosed. The method includes depositing a polysilicon gate layer over a gate dielectric formed over a surface of a substrate in a peripheral region, forming a dielectric layer over the polysilicon gate layer and depositing a height-enhancing (HE) film over the dielectric layer. The HE film, the dielectric layer, the polysilicon gate layer and the gate dielectric are then patterned for a high-voltage Field Effect Transistor (HVFET) gate to be formed in the peripheral region. A high energy implant is performed to form at least one lightly doped region in a source or drain region in the substrate adjacent to the HVFET gate. The HE film is then removed, and a low voltage (LV) logic FET formed on the substrate in the peripheral region. In one embodiment, the LV logic FET is a high-k metal-gate logic FET.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: March 26, 2019
    Assignee: Cypress Semiconductor Corporation
    Inventors: Chun Chen, James Pak, Unsoon Kim, Inkuk Kang, Sung-Taeg Kang, Kuo Tung Chang
  • Patent number: 10236299
    Abstract: A three-dimensional charge trap semiconductor device is constructed with alternating insulating and gate layers stacked over a substrate. During the manufacturing process, a channel hole is formed in the stack and the gate layers are recessed from the channel hole. Using the recessed topography of the gate layers, a charge trap layer can be deposited on the sidewalls of the channel hole and etched, leaving individual discrete charge trap layer sections in each recess. Filling the channel hole with channel material effectively provides a three-dimensional semiconductor device having individual charge trap layer sections for each memory cell.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: March 19, 2019
    Assignee: Cypress Semiconductor Corporation
    Inventors: Chun Chen, Kuo-Tung Chang, Shenqing Fang
  • Patent number: 10229745
    Abstract: Techniques for suppression of program disturb in flash memory devices are described herein. In an example embodiment, an apparatus comprises a flash memory device coupled to a microprocessor. The flash memory device comprises rows and columns of memory cells, where the memory cells in each row are coupled to a source line and to a select-gate (SG) line, and the memory cells in each column are coupled to a respective bit line (BL). A control circuit in the flash memory device is configured to regulate both a first voltage, of a selected SG line, and a second voltage, of an unselected BL, independently of a power supply voltage of the flash memory device, and to adjust at least one of the first voltage and the second voltage based on a measure of an operating temperature of the flash memory device.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: March 12, 2019
    Assignee: Cypress Semiconductor Corporation
    Inventors: Chun Chen, Kuo-Tung Chang, Yoram Betser, Shivananda Shetty, Giovanni Mazzeo, Tio Wei Neo, Pawan Singh
  • Publication number: 20190071369
    Abstract: A ceramic and plastic composite and a method for fabricating the same are disclosed. A chemical cleaning treatment, a microetching treatment, a hole reaming treatment, and a surface activating treatment are performed on the surface of a ceramic matrix to form nanoholes with an average diameter ranging between 150 nm and 450 nm. Plastics are injected onto the surface of the baked ceramic matrix to form a plastic layer. The plastic layer more deeply fills the nanoholes to have higher adhesion. Thus, the higher combined strength and air tightness exist between the ceramic matrix and the plastic layer to improve the reliability and the using performance of the ceramic and plastic composite.
    Type: Application
    Filed: May 14, 2018
    Publication date: March 7, 2019
    Inventors: Wen-Tung CHANG, Jong-Yi SU