Patents Assigned to Windbond Electronics Corporation
  • Patent number: 10419004
    Abstract: A monotonic counter includes a plurality of stages respectively corresponding to a plurality of counting bits of the monotonic counter. At least one of the plurality of stages is a non-volatile flip-flop (NVFF) counter that includes a plurality of NVFFs, each NVFF including a pair of non-volatile memory cells.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: September 17, 2019
    Assignee: Windbond Electronics Corporation
    Inventors: Seow Fong Lim, Chi-Shun Lin
  • Patent number: 9042172
    Abstract: A flash memory device may operate from two supply voltages, one being provided externally, and the other being generated within the flash memory device from the external supply voltage. The flash memory device may be provided with a selectable-level buffer for interfacing with either low supply voltage or high supply voltage integrated circuits. To provide even greater flexibility, the flash memory device may be provided with the capability of receiving a second supply voltage from an external source, which may take precedence over the internally-generated second supply voltage or may be combined with the internally-generated second supply voltage.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: May 26, 2015
    Assignee: WINDBOND ELECTRONICS CORPORATION
    Inventors: Jongjun Kim, Eungjoon Park
  • Publication number: 20090045822
    Abstract: Capacitive detection systems, modules, and methods. In one embodiment, time interval measurement(s) are generated that are monotonic functions of the capacitance(s) of capacitive sensor(s) in a capacitive sensing area. In one embodiment, the generated time interval measurement(s), or any other monotonic function(s) of capacitance(s) of capacitive sensor(s) in a capacitive sensing area, may be analyzed to detect the presence of an object near the capacitive sensing area and/or to detect the position of an object near the capacitive sensing area.
    Type: Application
    Filed: August 13, 2007
    Publication date: February 19, 2009
    Applicant: WINDBOND ELECTRONICS CORPORATION
    Inventors: Einat Nosovitsky, Mark Lukoyanichev, Yehezkel Friedman, Nir Tasher
  • Patent number: 6940326
    Abstract: The present invention discloses a frequency signal enabling apparatus and the method thereof for filtering noises and glitch when entering an operating mode from a power-saving mode. When the pulse width of the input frequency signal is smaller than the threshold pulse width, it will be considered as a noise and be filtered out. When the high-level pulse width of the input frequency signal is greater than the threshold, a first short pulse will be generated. When the low-level pulse width of the input frequency signal is greater than the threshold, a second short pulse will be generated. The relative position of the first short pulse and the second short pulse will be used to reconstruct the frequency signal, and the reconstructed frequency signal may serve as the operating frequency of the microprocessor or other digital IC.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: September 6, 2005
    Assignee: Windbond Electronics Corporation
    Inventors: Chie Yeon Chen, Chuang Huang Kuo
  • Patent number: 6865186
    Abstract: A multilevel analog recording and playback system is described. An analog processing circuit processes analog data. A storage circuit includes a non-volatile memory array, a switching circuit, and a communication interface. The non-volatile memory array stores analog and digital data. The switching circuit transfers the analog and digital data to and from the memory array. The communication interface allows a processor to exchange information with the device.
    Type: Grant
    Filed: February 10, 2000
    Date of Patent: March 8, 2005
    Assignee: Windbond Electronics Corporation
    Inventors: Geoffrey B. Jackson, Saleel V. Awsare, Ming-Bing Chang, Peter Holzmann, Oliver Chihkuang Kao, Hung-Chuan Pai, Carl R. Palmer, Aditya Raina
  • Patent number: 6839294
    Abstract: A memory device with high charging voltage bit lines, comprising: memory cells, sense amplifiers, and high charging voltage bit line circuits. Herein, the memory cell is used to store data and electrically couples with a pair of bit lines. The sense amplifier with a pair of sense nods, which electrically couples with the pair of bit lines, is used to sense the differential voltage levels of the pair of sense nodes while the memory cell is active. The high charging voltage bit line circuit is used to provide a charging voltage, which is higher than the logical high voltage of the memory cell, for charging the memory cell.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: January 4, 2005
    Assignee: Windbond Electronics Corporation
    Inventor: Chieng-Chung Chen
  • Patent number: 6718220
    Abstract: A method and system of monitoring apparatuses of manufacturing integrated circuit (IC) detects the problems during wafers processing by replaying the apparatus events. First, the method and system download the data of apparatus events, and then calculate the achievement indices. Then, the method and system establish the control chart to determined limitative rules, and execute the replaying system by establishing the computer interface system therewith to detect the abnormal point so as to proceed a rectification. The method and system of monitoring apparatuses of manufacturing IC review the past achievements by establishing a model for replaying apparatus history and achievements, and foresee the future problems by establishing control charts and a knowledge archive of rules.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: April 6, 2004
    Assignee: Windbond Electronics Corporation
    Inventor: Chung-Hsin Chen
  • Patent number: 6716700
    Abstract: A method of forming a semiconductor memory having rows and columns of memory cells is as follows; forming a plurality of rows of program gate lines from a second layer polysilicon; forming a plurality of rows of select gate lines from a third polysilicon layer; forming a plurality of rows of diffusion source lines: forming a plurality of local bitlines from a first layer metal, the cells along each column being divided into a pre-designated number of groups, and drains of the cells in each group being connected to a local bitline extending across the cells in the group of cells; and forming a plurality of global bitlines from a second layer metal extending along every two columns of cells, each global bitline being configured to selectively provide electrical connection to the local bitlines along the corresponding two columns of cells.
    Type: Grant
    Filed: April 21, 2003
    Date of Patent: April 6, 2004
    Assignee: Windbond Electronics Corporation
    Inventors: Chun-Mai Liu, Albert Kordesch, Ming-Bing Chang
  • Patent number: 6674325
    Abstract: A balanced current converter with multiple PWM converter channels has an error amplifier, a main converter channel and at least one parallel converter channel. The converter provides a DC power output and feeds back an average output voltage signal. The error amplifier compares a reference voltage signal and the average output voltage signal to generate an error signal. The main converter channel outputs a main channel current signal and a main channel power output according to the error signal. The parallel converter channel compares the main channel current signal and the respective parallel channel current signal to generate a first deviation signal, then compares the first deviation signal and the error signal to generate a second deviation signal. The parallel converter channel provides and measures a respective parallel channel power output to feed back the respective parallel channel current signal.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: January 6, 2004
    Assignee: Windbond Electronics Corporation
    Inventors: An-Tung Chen, Yung-Peng Hwang
  • Patent number: 6667201
    Abstract: The present invention discloses a method for manufacturing a flash memory cell having a horizontal surrounding gate (HSG). The flash memory cell of the present invention is formed on a trench of an isolation region, and a channel of the flash memory cell composed of a semiconductor film is encompassed and surrounded by a tunneling oxide layer, a floating gate, a dielectric layer, and a control gate in sequence. In addition, the floating gate and the control gate are also formed on the trench below the channel. Therefore, the leakage current of the channel can be reduced, and the short channel effect can be avoided. Furthermore, the coupling capacitor between the control gate and the floating gate is increased without increasing the cell size. Besides, the data can be programmed and erased by a Fowler-Nordheim (FN) tunneling effect.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: December 23, 2003
    Assignee: Windbond Electronics Corporation
    Inventor: Wen-Yueh Jang
  • Publication number: 20030223253
    Abstract: A stable voltage converter is described. The converter has multiple pulse width modulated channels having an error amplifier and a plurality of converter channels. The error amplifier compares the reference voltage and the average output voltage to generate an error signal for stabilizing the output voltage of the converter. Each converter channel uses the error signal input and generates a direct current power output. Furthermore, each converter channel includes a subtraction circuit, a pulse width modulator, a power switch, a filter and a current sensor. The subtraction circuit coupled with the error amplifier inputs the error signal and a channel current signal proportional to the direct current power output; therefore, the subtraction circuit subtracts the channel current signal from the error signal and outputs a modified error signal. The pulse width modulator inputs the ramp signal and the modified error signal then outputs the pulse width modulator signal.
    Type: Application
    Filed: June 3, 2002
    Publication date: December 4, 2003
    Applicant: WINDBOND ELECTRONICS CORPORATION
    Inventors: An-Tung Chen, Yung-Peng Hwang
  • Publication number: 20030214851
    Abstract: The present invention discloses a standby current erasion circuit applied in DRAM, which improves prior art word line driving circuit to have the word line voltage outputted in standby mode be equal to the bit line voltage, thereby the short DC standby current between the word line and bit line can be erased.
    Type: Application
    Filed: August 30, 2002
    Publication date: November 20, 2003
    Applicant: WINDBOND ELECTRONICS CORPORATION
    Inventor: Yu-Chang Lin
  • Patent number: 6541325
    Abstract: The present invention discloses a simple and convenient method for fabricating a capacitor device with BiCMOS processes. An electrode of the capacitor device formed according to the present invention is an ion doping region formed in an epitaxy layer so that the thickness of the dielectric layer of the capacitor device decreased relative to a specific ion concentration. Accordingly, the capacitor device formed therein has a high capacitance and good performance.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: April 1, 2003
    Assignee: Windbond Electronics Corporation
    Inventors: Chih-Mu Huang, Chuan-Jane Chao, Chi-Hung Kao
  • Patent number: 6531733
    Abstract: The present invention discloses a structure of a flash memory cell having a horizontal surrounding gate (HSG) and a method for manufacturing the same. The flash memory cell of the present invention is formed on a trench of an isolation region, and a channel of the flash memory cell composed of a semiconductor film is encompassed and surrounded by a tunneling oxide layer, a floating gate, a dielectric layer, and a control gate in sequence. In addition, the floating gate and the control gate are also formed on the trench below the channel. Therefore, the leakage current of the channel can be reduced, and the short channel effect can be avoided. Furthermore, the coupling capacitor between the control gate and the floating gate is increased without increasing the cell size. Besides, the data can be programmed and erased by a Fowler-Nordheim (FN) tunneling effect.
    Type: Grant
    Filed: December 17, 2001
    Date of Patent: March 11, 2003
    Assignee: Windbond Electronics Corporation
    Inventor: Wen-Yueh Jang
  • Patent number: 6433521
    Abstract: The present invention provides a regulator used in an active terminator of a bus. The regulator comprises a voltage-regulated terminal, a first operational amplifier and a non-inverting input terminal thereof coupled to a reference voltage. An inverting input terminal of a second operational amplifier is coupled to the reference voltage. A control gate of a first transistor is coupled to an output terminal of the first operational amplifier. A source of the first transistor is coupled to an inverting input terminal of the first operational amplifier to form a feedback network and to provide a stable circuit of sourcing current. A control gate of a second transistor is coupled to an output terminal of the second operational amplifier and a drain of the second transistor to a non-inverting input terminal of the second operational amplifier to form the feedback network and to provide a stable circuit of sinking current.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: August 13, 2002
    Assignee: Windbond Electronics Corporation
    Inventors: An-Tung Chen, Yung-Peng Hwang
  • Patent number: 6424183
    Abstract: The present invention discloses a current comparator having simple, cheap and fast characteristics, especially discloses a current comparator having a small dead zone and excellent driving capability. The current comparator of the present invention comprises a first CMOS transistor, a second CMOS transistor, a diode-configured N-type transistor, a fourth CMOS transistor and a fifth CMOS transistor.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: July 23, 2002
    Assignee: Windbond Electronics Corporation
    Inventors: Hong-Chin Lin, Jie-Hau Huang, Shyh-Chyi Wong
  • Patent number: 6403496
    Abstract: A method for forming shallow trench isolations includes the steps of defining a wafer substrate, forming a silicon dioxide insulating layer on the substrate, depositing a silicon nitride layer on the silicon dioxide insulating layer, and forming at least one trench in the substrate through the silicon dioxide and silicon nitride layers. The method also includes the steps of depositing a silicon dioxide layer over the silicon nitride layer and in the trench, removing the silicon dioxide layer deposited over the silicon nitride layer, anisotropically etching the silicon dioxide layer to produce silicon dioxide sidewalls in the trench contiguous with the silicon nitride layer, isotropically etching to remove the sidewalls and removing the silicon nitride layer.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: June 11, 2002
    Assignee: Windbond Electronics Corporation
    Inventor: Yu-Chung Tien
  • Patent number: 5903487
    Abstract: An analog memory device includes a memory cell transistor and a memory follower transistor that share a common floating gate. The drain of the memory cell transistor is coupled to a first voltage source. The control gate of the memory cell transistor is coupled to a second voltage source. A programming transistor is coupled between the source of the memory cell transistor and a reference voltage. A comparator receives a first input analog signal to be stored in the memory cell transistor and is coupled to the memory follower transistor to receive the signal held on the floating gate. The output of the comparator is coupled to the control gate of the programming transistor to selectively turn it on to store the analog signal in the memory cell transistor.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: May 11, 1999
    Assignee: Windbond Electronics Corporation
    Inventors: Albert T. Wu, Dah-Bin Kao, Loc B. Hoang, Tung-Yi Chan