Patents by Inventor Chih-Hao Chuang

Chih-Hao Chuang 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: 20250029949
    Abstract: A wafer stacking process is provided in the present invention, including steps of forming a silicon oxide layer on a sacrificial carrier, bonding the silicon oxide layer with a dielectric layer on a front side of a silicon substrate, performing a thinning process on the back side of the silicon substrate to expose TSVs therewithin, bonding the back side of the silicon substrate with another silicon substrate, repeating the thinning process and the process of bonding another silicon substrate above so as to form a wafer stacking structure, and performing a removing process to completely remove the sacrificial carrier.
    Type: Application
    Filed: November 1, 2023
    Publication date: January 23, 2025
    Applicant: Powerchip Semiconductor Manufacturing Corporation
    Inventors: Chih-Feng Sung, Chih-Hao Chuang, Chun-Lin Lu, Shih-Ping Lee, Li-Han Chiu, Yi-Kai Wu
  • Patent number: 11079720
    Abstract: A holographic display system includes a light source that emits coherent light; a lateral displacement beam splitter that optically receives the coherent light and generates first reference light and second reference light; a first spatial light modulator (SLM) and a second SLM that optically receive the first reference light and the second reference light respectively, and construct first phase-only function (POF) light and second POF light respectively; a first beam splitter and a second beam splitter that optically receive the first POF light and the second POF light respectively, and generate first split light and second split light respectively; and a plurality of polarizers disposed between the first SLM and the first beam splitter, and between the second SLM and the second beam splitter, respectively.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: August 3, 2021
    Assignees: National Taiwan University, Himax Technologies Limited
    Inventors: Chien-Yu Chen, Chih-Hao Chuang, Hoang-Yan Lin
  • Publication number: 20200356051
    Abstract: A holographic display system includes a light source that emits coherent light; a lateral displacement beam splitter that optically receives the coherent light and generates first reference light and second reference light; a first spatial light modulator (SLM) and a second SLM that optically receive the first reference light and the second reference light respectively, and construct first phase-only function (POF) light and second POF light respectively; a first beam splitter and a second beam splitter that optically receive the first POF light and the second POF light respectively, and generate first split light and second split light respectively; and a plurality of polarizers disposed between the first SLM and the first beam splitter, and between the second SLM and the second beam splitter, respectively.
    Type: Application
    Filed: May 7, 2019
    Publication date: November 12, 2020
    Inventors: Chien-Yu Chen, Chih-Hao Chuang, Hoang-Yan Lin
  • Publication number: 20200220577
    Abstract: A wireless charging signal transmitting method includes continuously transmitting short beacons in a time cycle, each short beacon being used to detect a load change; and transmitting a long beacon only when the short beacons detect the load change to start detecting one or more connection broadcast signals. Moreover, a wireless power transmitting unit is also provided. Accordingly, the method and the device reduce the power consumption of a wireless charging system during the standby period.
    Type: Application
    Filed: January 8, 2020
    Publication date: July 9, 2020
    Applicant: NEWVASTEK CO., LTD.
    Inventors: Ming-Liang Fang, Sheng-Kuan Chen, Chih-Hao Chuang
  • Publication number: 20200144847
    Abstract: A wireless charging converting apparatus includes a circuit board, a receive coil, a primary circuit, a transmit coil, a high-frequency magnetic isolation sheet, and a low-frequency magnetic isolation sheet. The receive coil is located on the circuit board to receive a high-frequency magnetic signal and convert the high-frequency magnetic signal into a first alternating-current signal. The primary circuit is located on the circuit board to receive the first alternating-current signal and convert the first alternating-current signal into a second alternating-current signal. The transmit coil is to convert the second alternating-current signal into a low-frequency magnetic signal. The low-frequency magnetic isolation sheet is located between the transmit coil and the circuit board. The high-frequency magnetic isolation sheet is located between the low-frequency magnetic isolation sheet and the receive coil. In addition, a protective shell having a wireless charging converting apparatus is also provided.
    Type: Application
    Filed: November 6, 2019
    Publication date: May 7, 2020
    Applicant: NEWVASTEK CO., LTD.
    Inventors: Ming-Liang Fang, Sheng-Kuan Chen, Chih-Hao Chuang
  • Publication number: 20200144848
    Abstract: A cigar lighter having a wireless electricity receiving function includes a housing, a first electric-conductor, a second electric-conductor, a receive coil, a rectifier module, a voltage adjustment module, and an output end. The first electric-conductor and the second electric-conductor protrude from the housing to be in contact with a first electrode terminal and a second electrode terminal of a connector. The receive coil is located on the housing. The rectifier module is located in a chamber of the housing, and the rectifier module is electrically connected to the receive coil. The voltage adjustment module is located in the chamber and is electrically connected to the first electric-conductor, the second electric-conductor, and the rectifier module. The output end is located at one end of the housing and is electrically connected to the voltage adjustment module. In addition, a portable power supply device having a wireless electricity receiving function is also provided.
    Type: Application
    Filed: November 6, 2019
    Publication date: May 7, 2020
    Applicant: NEWVASTEK CO., LTD.
    Inventors: Ming-Liang Fang, Sheng-Kuan Chen, Chih-Hao Chuang
  • Publication number: 20200091754
    Abstract: A low-energy-consumption high-frequency wireless charging system for a lithium battery, the main structure comprises a power-supply module connected in series with a first resonant unit; wherein the first resonant unit is electrically connected to a resonance-tuning module; wherein the resonance-tuning module comprises a first shunt unit and a second resonant unit both electrically connected with the first resonant unit; and the first shunt unit is electrically connected to a third resonant unit and a rectifier module; wherein the third resonant unit is connected in parallel with the rectifier module; and the rectifier module is electrically connected with a voltage stabilizing module which is connected in parallel with a power-storage element. When the power-storage element is charging, the resonance-tuning module has a charging curve with better efficiency to achieve the effect of Class-E wireless fast charging.
    Type: Application
    Filed: September 17, 2018
    Publication date: March 19, 2020
    Inventors: Ming Liu, Chengbin Ma, Ming-Liang Fang, Chih-Hao Chuang
  • Patent number: 10594205
    Abstract: A high-frequency half-wave rectifier system of low-harmonicity and high-efficiency, which mainly comprises: a current output device having an output end and a first flow-return end respectively at both ends, a rectifying module, a resonant tuning unit, a first node, a voltage regulator module, at least one load element, a grounding portion, and at least one flow-return path. By means of the above structure, a simple circuit configuration and appropriate capacitance value setting are used to control the duty cycle of the rectifying module to approximately 74 nanoseconds and adjust the output power and improve the AC to DC conversion efficiency for the rectifying module under the low electromagnetic interference condition.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: March 17, 2020
    Assignee: NEWVASTEK CO., LTD.
    Inventors: Ming Liu, Chengbin Ma, Ming-Liang Fang, Chih-Hao Chuang
  • Publication number: 20200044475
    Abstract: The present invention relates to a multi-receiving wireless charging system and the method thereof. The main structure comprises: A wireless power supply component which wirelessly transmits a power signal to a plurality of receiving components, and the power signal is pass though one receiving element, one receiving compensation element, one receiving resistance element, and one rectifier element in each of the receiving components; and then the power signal is transmitted to the load element. Therefore, the chance of overheating is reduced and the charging efficiency is increased.
    Type: Application
    Filed: August 1, 2018
    Publication date: February 6, 2020
    Inventors: Ming Liu, Chengbin Ma, Ming-Liang Fang, Chih-Hao Chuang
  • Publication number: 20200044556
    Abstract: A high-frequency half-wave rectifier system of low-harmonicity and high-efficiency, which mainly comprises: a current output device having an output end and a first flow-return end respectively at both ends, a rectifying module, a resonant tuning unit, a first node, a voltage regulator module, at least one load element, a grounding portion, and at least one flow-return path. By means of the above structure, a simple circuit configuration and appropriate capacitance value setting are used to control the duty cycle of the rectifying module to approximately 74 nanoseconds and adjust the output power and improve the AC to DC conversion efficiency for the rectifying module under the low electromagnetic interference condition.
    Type: Application
    Filed: August 1, 2018
    Publication date: February 6, 2020
    Inventors: Ming Liu, Chengbin Ma, Ming-Liang Fang, Chih-Hao Chuang
  • Patent number: 10516288
    Abstract: Each wireless charging device of the wireless charging system has a Bluetooth module for detecting signal strength between the wireless charging device and an electronic device. The signal strength information is shared among the wireless charging devices by their data transceiver units. An analysis module of each wireless charging device automatically determines one wireless charging device having the best connection, and a decision module of the determined wireless charging device transmits a charging permit to the electronic device. Cross connection of the electronic device to multiple wireless charging devices is therefore avoided.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: December 24, 2019
    Assignees: NEWVASTEK CO., LTD., GUNITECH CORP.
    Inventors: Ming-Liang Fang, Chih-Hao Chuang, Huan-Ruei Shiu
  • Publication number: 20190199115
    Abstract: The wireless charging service system mainly includes a wireless charging device and a server device. The wireless charging device includes a data transceiver module, a wireless charging module, and a detection module. The server device is data-linked with the data transceiver module of the wireless charging device, and a remote cloud service. A mobile device therefore may interact with the data transceiver module so that info messages prepared by the remote cloud service may be presented on the mobile device. When the mobile device is adjacent to the wireless charging device, the data transceiver module may select different info messages to present on the mobile device. Additional info messages may be added by the remote cloud service.
    Type: Application
    Filed: December 27, 2017
    Publication date: June 27, 2019
    Inventors: Ming-Liang Fang, Chih-Hao Chuang, Huan-Ruei Shiu
  • Publication number: 20190199116
    Abstract: Each wireless charging device of the wireless charging system has a Bluetooth module for detecting signal strength between the wireless charging device and an electronic device. The signal strength information is shared among the wireless charging devices by their data transceiver units. An analysis module of each wireless charging device automatically determines one wireless charging device having the best connection, and a decision module of the determined wireless charging device transmits a charging permit to the electronic device. Cross connection of the electronic device to multiple wireless charging devices is therefore avoided.
    Type: Application
    Filed: December 27, 2017
    Publication date: June 27, 2019
    Inventors: Ming-Liang Fang, Chih-Hao Chuang, Huan-Ruei Shiu
  • Patent number: 10236939
    Abstract: The present invention relates to a sharing system of the near-field communication and the high-frequency wireless charging coils. The main structure comprises a wireless signal transmission unit for receiving signals which will then transmit to a first resonance unit and a second resonance unit at both ends, and then the signals will enter a first notch filter module and a second notch filter module and then charge a load element. The near-field communication module connects with the wireless signal transmission unit to receive a signal. Such that, the near-field communication module can share coils with the high-frequency wireless charging coils to achieve the space-saving effect.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: March 19, 2019
    Assignee: NEWVASTEK CO., LTD.
    Inventors: Ming-Liang Fang, Chih-Hao Chuang
  • Patent number: 10075090
    Abstract: The AC rectifier system includes an AC source having a positive half-cycle terminal and a negative half-cycle terminal, a first rectifier module along with a first resonance unit having a first terminal connected to the positive half-cycle terminal, a second rectifier module along with a second resonance unit having a first terminal connected to negative half-cycle terminal, a regulator module along with a load element having a first terminal respectively connected to a second terminal of the first rectifier module and a second terminal of the second rectifier module, and a current divider module connected to the positive and negative half-cycle terminals the first terminals of the first and second rectifier modules, and the second terminal of the regulator module. Therefore current would be repeatedly transformed through the current divider module, enhancing heat reduction and transformation efficiency. The resonance units may also function as a filter.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: September 11, 2018
    Assignee: NEWVASTEK CO., LTD.
    Inventors: Ming Liu, Chengbin Ma, Chih-Hao Chuang, Ming-Liang Fang
  • Publication number: 20060010166
    Abstract: The invention discloses a data processing system and method for managing production information associated with N1 electronic products requested according to a work order. N2 main devices are prepared based on the information of the work order and produced through a manufacturing line to produce N3 semi-products, and further through an assembling line to produce the N1 electronic products. Each of the main devices is provided with a respective first identification code at the start of the manufacturing line. Each of the semi-products is provided with a respective second identification code at the start of the assembling line.
    Type: Application
    Filed: June 29, 2005
    Publication date: January 12, 2006
    Inventors: Chin-Lin Lin, Huang-Yang Wu, Chih-Hao Chuang, Chia-Hsien Wang