Patents by Inventor Takahisa Mase

Takahisa Mase 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: 11774298
    Abstract: Multi-point thermocouples and assemblies are disclosed for ceramic heating structures. The disclosed embodiments provide multi-point connections in distinct areas to provide good temperature-sensing contacts between metal thermocouples and ceramic bodies while also providing improved flexibility. As such, cracking of ceramic bodies for heating structures is avoided. For one embodiment, assemblies including a multi-point thermocouple and a ceramic body are used in bake plates for processing systems that process microelectronic workpieces. The metal thermocouple has a flat surface used for connections to the ceramic body. Preferably, the thermocouple is relatively thin and provides improved connection sites and flexibility.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: October 3, 2023
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Melvin Verbaas, Kentaro Asakura, Takashi Mochizuki, Takahisa Mase, Nobutaka Yoshioka, Saki Matsuo
  • Patent number: 11488847
    Abstract: An apparatus for heat-treating a substrate includes: a stage where the substrate is disposed; a heating part configured to change an output; a first temperature measurement part configured to measure a temperature at which the substrate is heated; a second temperature measurement part configured to measure the temperature, and having a level of measurement accuracy which is lower than that of the first temperature measurement part in a first temperature region and is higher than that of the first temperature measurement part in a second temperature region; a temperature calculator configured to calculate a weighted average temperature of the temperatures measured by the first and second temperature measurement parts if a reference temperature is in a temperature range between the first and second temperatures, and configured to change a weight of the weighted average temperature; and a controller configured to control the output based on the weighted average temperature.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: November 1, 2022
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Hiroyuki Miyashita, Shohei Yoshida, Takahisa Mase
  • Publication number: 20220078888
    Abstract: An apparatus for heating a substrate includes: a stage including at least one resistance heater that heats the substrate placed thereon; a temperature detector for detecting a heating temperature of the substrate; a temperature calculator for calculating the heating temperature based on a resistance value of the at least one resistance heater; a power controller for performing a power control with respect to a first power to be supplied to the at least one resistance heater such that the heating temperature becomes close to a first preset temperature by switchably applying a phase control and a zero-cross control; and a controller for switching the power control of the power controller to the phase control or the zero-cross control.
    Type: Application
    Filed: September 1, 2021
    Publication date: March 10, 2022
    Inventor: Takahisa MASE
  • Publication number: 20210247240
    Abstract: Multi-point thermocouples and assemblies are disclosed for ceramic heating structures. The disclosed embodiments provide multi-point connections in distinct areas to provide good temperature-sensing contacts between metal thermocouples and ceramic bodies while also providing improved flexibility. As such, cracking of ceramic bodies for heating structures is avoided. For one embodiment, assemblies including a multi-point thermocouple and a ceramic body are used in bake plates for processing systems that process microelectronic workpieces. The metal thermocouple has a flat surface used for connections to the ceramic body. Preferably, the thermocouple is relatively thin and provides improved connection sites and flexibility.
    Type: Application
    Filed: February 12, 2020
    Publication date: August 12, 2021
    Inventors: Melvin Verbaas, Kentaro Asakura, Takashi Mochizuki, Takahisa Mase, Nobutaka Yoshioka, Saki Matsuo
  • Publication number: 20210020477
    Abstract: An apparatus for heat-treating a substrate includes: a stage where the substrate is disposed; a heating part configured to change an output; a first temperature measurement part configured to measure a temperature at which the substrate is heated; a second temperature measurement part configured to measure the temperature, and having a level of measurement accuracy which is lower than that of the first temperature measurement part in a first temperature region and is higher than that of the first temperature measurement part in a second temperature region; a temperature calculator configured to calculate a weighted average temperature of the temperatures measured by the first and second temperature measurement parts if a reference temperature is in a temperature range between the first and second temperatures, and configured to change a weight of the weighted average temperature; and a controller configured to control the output based on the weighted average temperature.
    Type: Application
    Filed: July 2, 2020
    Publication date: January 21, 2021
    Inventors: Hiroyuki MIYASHITA, Shohei YOSHIDA, Takahisa MASE
  • Publication number: 20070131168
    Abstract: The invention relates to a gas supplying unit to be arranged to hermetically fit in an opening formed at a ceiling part of a processing container for conducting a process to a substrate. The gas supplying unit includes a plurality of nickel members. A large number of gas-supplying holes is formed at a lower surface of the gas supplying unit, a process gas is adapted to be supplied from the large number of gas-supplying holes into the processing container, and the plurality of nickel members is fixed to each other via an intermediate member for preventing sticking made of a material different from nickel.
    Type: Application
    Filed: October 27, 2006
    Publication date: June 14, 2007
    Inventors: Hisashi Gomi, Tetsuya Saito, Takashi Kakegawa, Takahisa Mase, Makoto Koizumi, Kunihiro Tada, Satoshi Wakabayashi, Kensaku Narushima, Fang Cheng