Patents by Inventor Hiromasa Susuki

Hiromasa Susuki 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).

  • THREE-DIMENSIONAL MEMORY DEVICE CONTAINING SUPPORT PILLARS UNDERNEATH A RETRO-STEPPED DIELECTRIC MATERIAL AND METHOD OF MAKING THEREOF
    Publication number: 20180342531
    Abstract: A three-dimensional memory device includes an alternating stack of insulating layers and electrically conductive layers located over a substrate, the alternating stack containing a memory array region and a terrace region. Memory stack structures containing a memory film and a vertical semiconductor channel extend through the memory array region of the alternating stack. Support pillar structures extending through the terrace region of the alternating stack. The support pillar structures have different heights from each other.
    Type: Application
    Filed: May 29, 2017
    Publication date: November 29, 2018
    Inventors: Hiromasa Susuki, Masanori Tsutsumi, Shigehisa Inoue, Junji Oh, Kensuke Yamaguchi, Seiji Shimabukuro, Yuji Fukano, Ryoichi Ehara, Youko Furihata
  • Three-dimensional memory device containing support pillars underneath a retro-stepped dielectric material and method of making thereof
    Patent number: 10141331
    Abstract: A three-dimensional memory device includes an alternating stack of insulating layers and electrically conductive layers located over a substrate, the alternating stack containing a memory array region and a terrace region. Memory stack structures containing a memory film and a vertical semiconductor channel extend through the memory array region of the alternating stack. Support pillar structures extending through the terrace region of the alternating stack. The support pillar structures have different heights from each other.
    Type: Grant
    Filed: May 29, 2017
    Date of Patent: November 27, 2018
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Hiromasa Susuki, Masanori Tsutsumi, Shigehisa Inoue, Junji Oh, Kensuke Yamaguchi, Seiji Shimabukuro, Yuji Fukano, Ryoichi Ehara, Youko Furihata