Patents by Inventor Ping-Chun Wu

Ping-Chun Wu 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: 20240153895
    Abstract: Semiconductor dies of a semiconductor die package are directly bonded, and a top metal region may be formed over the semiconductor dies. A plurality of conductive terminals may be formed over the top metal region. The conductive terminals are formed of copper (Cu) or another material that enables low-temperature deposition process techniques, such as electroplating, to be used to form the conductive terminal. In this way, the conductive terminals of the semiconductor die packages described herein may be formed at a relatively low temperature. This reduces the likelihood of thermal deformation of semiconductor dies in the semiconductor die packages. The reduced thermal deformation reduces the likelihood of warpage, breakage, and/or other types of damage to the semiconductor dies of the semiconductor die packages, which may increase performance and/or increase yield of semiconductor die packages.
    Type: Application
    Filed: April 19, 2023
    Publication date: May 9, 2024
    Inventors: Harry-HakLay CHUANG, Wei-Cheng WU, Chung-Jen HUANG, Yung Chun TU, Chien Lin LIU, Shun-Kuan LIN, Ping-tzu CHEN
  • Publication number: 20240152321
    Abstract: A floating point pre-alignment structure for computing-in-memory applications includes a time domain exponent computing block and an input mantissa pre-align block. The time domain exponent computing block is configured to compute a plurality of original input exponents and a plurality of original weight exponents to generate a plurality of flags. Each of the flags is determined by adding one of the original input exponents and one of the original weight exponents. The input mantissa pre-align block is configured to receive a plurality of original input mantissas and shift the original input mantissas according to the flags to generate a plurality of weighted input mantissas, and sparsity of the weighted input mantissas is greater than sparsity of the original input mantissas. Each of the flags has a negative correlation with a sum of the one of the original input exponents and the one of the original weight exponents.
    Type: Application
    Filed: November 9, 2022
    Publication date: May 9, 2024
    Inventors: Meng-Fan CHANG, Ping-Chun WU, Jin-Sheng REN, Li-Yang HONG, Ho-Yu CHEN
  • Patent number: 11980076
    Abstract: A tiled display device includes two panels and two cover layers respectively disposed on the two panels. The two cover layers include a contact region. A top portion and a bottom portion of the contact region have a height H. One of the two cover layers has a thickness Tn. One of the two panels has a distance Xn between an upper surface of the one of the two panels and the bottom portion of the contact region. The one of the two panels is corresponding to the one of the two cover layers. The height H, the thickness Tn and the distance Xn satisfy the equation: 0<H/(Xn+Tn)<0.8.
    Type: Grant
    Filed: December 24, 2020
    Date of Patent: May 7, 2024
    Assignee: InnoLux Corporation
    Inventors: Ping-Hsun Tsai, Shih-Fu Liao, I-An Yao, Yu-Chun Hsu, Yung-Hsun Wu, Sheng-Nan Fan
  • Patent number: 11967357
    Abstract: A memory unit with time domain edge delay accumulation for computing-in-memory applications is controlled by a first word line and a second word line. The memory unit includes at least one memory cell, at least one edge-delay cell multiplexor and at least one edge-delay cell. The at least one edge-delay cell includes a weight reader and a driver. The weight reader is configured to receive a weight and a multi-bit analog input voltage and generate a multi-bit voltage according to the weight and the multi-bit analog input voltage. The driver is connected to the weight reader and configured to receive an edge-input signal. The driver is configured to generate an edge-output signal having a delay time according to the edge-input signal and the multi-bit voltage. The delay time of the edge-output signal is positively correlated with the multi-bit analog input voltage multiplied by the weight.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: April 23, 2024
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Meng-Fan Chang, Ping-Chun Wu, Li-Yang Hong, Jin-Sheng Ren, Jian-Wei Su
  • Publication number: 20230317124
    Abstract: Memory systems and operating method of a memory system are provided. The memory system utilized for performing a computing-in-memory (CiM) operation comprises a memory array and a processing circuit. The memory array comprises a plurality of memory cells. The processing circuit is coupled to the memory array and comprises a programming circuit and a control circuit. The programming circuit is coupled to the memory array and configured to perform a write operation for programming electrical characteristics of the memory cells. The control circuit is coupled to the programming circuit and configured to: receive a plurality of weight data corresponding to a plurality of weight values; and control the write operation performed by the programming circuit, so the electrical characteristics of the memory cells are programmed following a sequential order of the weight values.
    Type: Application
    Filed: August 21, 2022
    Publication date: October 5, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Win-San KHWA, Ping-Chun WU, Tung Ying LEE, Meng-Fan CHANG
  • Publication number: 20230280976
    Abstract: Embodiments include monitoring a partial sum of a multiply accumulate calculation for certain conditions. When the certain conditions are met, a reduced read energy is used to read out memory contents instead of the regular read energy used. The reduced read energy may be obtained by reducing a pre-charge voltage, withholding a pre-charge voltage or providing a ground signal, and/or by reducing voltage hold times (i.e., reducing the time a pre-charge voltage is provided and/or discharged).
    Type: Application
    Filed: July 8, 2022
    Publication date: September 7, 2023
    Inventors: Win-San Khwa, Ping-Chun Wu, Yi-Lun Lu, Jui-Jen Wu, Meng-Fan Chang
  • Publication number: 20230259331
    Abstract: A dynamic differential-reference time-to-digital converter for computing-in-memory applications is controlled by a bias reference and a predetermined setting parameter, and includes a configurable main-reference selector and a plurality of time-to-digital converters. The configurable main-reference selector is configured to receive a plurality of edge-output signals, select one of the edge-output signals as a main reference and select others of the edge-output signals as a plurality of edge selected signals according to the predetermined setting parameter. One of the time-to-digital converters is configured to compare the bias reference with the main reference to output a bias multiplication-and-accumulation value, and others of the time-to-digital converters are configured to compare the main reference with the edge selected signals to output a plurality of differential multiplication-and-accumulation values.
    Type: Application
    Filed: February 17, 2022
    Publication date: August 17, 2023
    Inventors: Meng-Fan CHANG, Ping-Chun WU, Jin-Sheng REN, Li-Yang HONG, Ho-Yu CHEN
  • Publication number: 20230238047
    Abstract: A memory unit with time domain edge delay accumulation for computing-in-memory applications is controlled by a first word line and a second word line. The memory unit includes at least one memory cell, at least one edge-delay cell multiplexor and at least one edge-delay cell. The at least one edge-delay cell includes a weight reader and a driver. The weight reader is configured to receive a weight and a multi-bit analog input voltage and generate a multi-bit voltage according to the weight and the multi-bit analog input voltage. The driver is connected to the weight reader and configured to receive an edge-input signal. The driver is configured to generate an edge-output signal having a delay time according to the edge-input signal and the multi-bit voltage. The delay time of the edge-output signal is positively correlated with the multi-bit analog input voltage multiplied by the weight.
    Type: Application
    Filed: January 21, 2022
    Publication date: July 27, 2023
    Inventors: Meng-Fan CHANG, Ping-Chun WU, Li-Yang HONG, Jin-Sheng REN, Jian-Wei SU
  • Patent number: 11416146
    Abstract: A memory structure with input-aware maximum multiply-and-accumulate value zone prediction for computing-in-memory applications includes a memory array, an input-aware zone prediction circuit and an analog-to-digital converter. An input-aware maximum partial multiply-and-accumulate value voltage generator is configured to generate a maximum partial multiply-and-accumulate value according to at least one input value. A prediction-aware global reference voltage generator is configured to generate a plurality of global reference voltages, a maximum reference voltage and a selected minimum reference voltage. A maximum partial multiply-and-accumulate value zone detector is configured to generate a zone switch signal by comparing the maximum partial multiply-and-accumulate value and the global reference voltages.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: August 16, 2022
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Meng-Fan Chang, Jian-Wei Su, Je-Min Hung, Chuan-Jia Jhang, Ping-Chun Wu, Jin-Sheng Ren
  • Publication number: 20220127752
    Abstract: The present invention provides a method for manufacturing an epitaxial film and the epitaxial film thereof. The method comprises the steps of: providing a first single crystal substrate and forming a sacrificial layer and a first epitaxial film on the first single crystal substrate; removing the sacrificial layer in order to separate the first epitaxial film from the first single crystal substrate; shifting the first epitaxial film to a second single crystal substrate so as to let the first epitaxial film cover on a partial surface of the second single crystal substrate, wherein the first epitaxial film and the second single crystal substrate are two different crystallographic plane orientations in absolute coordinates; and forming a second epitaxial film on the first epitaxial film and the second single crystal substrate, so as to let the second epitaxial film has at least two crystallographic plane orientations.
    Type: Application
    Filed: March 22, 2021
    Publication date: April 28, 2022
    Applicant: National Cheng Kung University
    Inventors: Jan-Chi Yang, Ping-Chun Wu, Chia-Chun Wei