Patents by Inventor Pradeep Kumar Rai

Pradeep Kumar Rai 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: 20260206641
    Abstract: A memory device includes a plurality of memory dies arranged in a stack with electrical connectors configured to transfer signals to and from the memory dies. The memory dies are encapsulated within a first mold compound so that ends of the electrical connectors extend to an active surface of the first mold compound. The first mold compound has a depression in the active surface. A memory controller die is located in the depression. The memory controller die is encapsulated in a second mold compound in the depression and has an active surface that is coplanar with the active surface of the first mold compound.
    Type: Application
    Filed: January 10, 2025
    Publication date: July 16, 2026
    Applicant: Sandisk Technologies, Inc.
    Inventors: Cong Zhang, Pradeep Kumar Rai, Yiqin Huang, Xuyi Yang
  • Publication number: 20250239497
    Abstract: An apparatus includes a tape having a tape thickness extending from a first surface to a second surface and a plurality of cavities formed in the first surface. Each cavity has dimensions along the first surface that are less than dimensions of a corresponding package. Each cavity has a cavity depth that is less than the tape thickness such that a base portion of the tape has a base thickness that is less than the tape thickness.
    Type: Application
    Filed: January 23, 2024
    Publication date: July 24, 2025
    Applicant: Western Digital Technologies, Inc.
    Inventors: Ankit Kumar, Xu Chen, Rui Guo, Shaopeng Dong, Jihao Tang, Wenbin Qu, Fen Yu, Pradeep Kumar Rai
  • Patent number: 10916878
    Abstract: A USB device, and methods of forming same, are disclosed. The USB device includes a semiconductor device such as a SIP module and a housing injection molded around the semiconductor device.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: February 9, 2021
    Assignee: Western Digital Technologies, Inc.
    Inventors: Tee Khoon Guan, Pradeep Kumar Rai
  • Publication number: 20190393654
    Abstract: A USB device, and methods of forming same, are disclosed. The USB device includes a semiconductor device such as a SIP module and a housing injection molded around the semiconductor device.
    Type: Application
    Filed: June 22, 2018
    Publication date: December 26, 2019
    Applicant: Western Digital Technologies, Inc.
    Inventors: Tee Khoon Guan, Pradeep Kumar Rai
  • Patent number: 9773766
    Abstract: A semiconductor package including a plurality of stacked semiconductor die, and methods of forming the semiconductor package, are disclosed. In order to ease wirebonding requirements on the controller die, the controller die may be mounted directly to the substrate in a flip chip arrangement requiring no wire bonds or footprint outside of the controller die. Thereafter, a spacer layer may be affixed to the substrate around the controller die to provide a level surface on which to mount one or more flash memory die. The spacer layer may be provided in a variety of different configurations.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: September 26, 2017
    Assignees: SanDisk Information Technology (Shanghai) Co., Ltd., SanDisk Semiconductor (Shanghai) Co. Ltd.
    Inventors: Ning Ye, Chin-Tien Chiu, Suresh Upadhyayula, Peng Fu, Zhong Lu, Cheeman Yu, Yuang Zhang, Li Wang, Pradeep Kumar Rai, Weili Wang, Enyong Tai, King Hoo Ong, Kim Lee Bock
  • Publication number: 20150221624
    Abstract: A semiconductor package including a plurality of stacked semiconductor die, and methods of forming the semiconductor package, are disclosed. In order to ease wirebonding requirements on the controller die, the controller die may be mounted directly to the substrate in a flip chip arrangement requiring no wire bonds or footprint outside of the controller die. Thereafter, a spacer layer may be affixed to the substrate around the controller die to provide a level surface on which to mount one or more flash memory die. The spacer layer may be provided in a variety of different configurations.
    Type: Application
    Filed: January 9, 2013
    Publication date: August 6, 2015
    Applicants: SANDISK SEMICONDUCTOR (SHANGHAI) CO., LTD., SANDISK INFORMATION TECHNOLOGY (SHANGHAI) CO., LTD.
    Inventors: Ning Ye, Chin-Tien Chiu, Suresh Upadhyayula, Peng Fu, Zhong Lu, Cheeman Yu, Yuang Zhang, Li Wang, Pradeep Kumar Rai, Weili Wang, Enyong Tai, King Hoo Ong, Kim Lee Bock
  • Patent number: 9038264
    Abstract: A tool is disclosed for separating a semiconductor die from a tape to which the die is affixed during the wafer dicing process. The tool includes a pick-up arm for positioning a vacuum tip over a semiconductor die to be removed. The vacuum tip includes a non-uniform array of vacuum holes to grip the semiconductor wafer.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: May 26, 2015
    Assignees: SanDisk Semiconductor (Shanghai) Co., Ltd., SanDisk Information Technology (Shanghai) Co., Ltd.
    Inventors: Pradeep Kumar Rai, Kim Lee Bock, Li Wang, JinXiang Huang, EnYong Tai, JianHua Wang, King Hoo Ong
  • Publication number: 20120216396
    Abstract: A system is disclosed for separating a semiconductor die from a tape to which the die is affixed during the wafer dicing process. The system includes a pick-up arm for positioning a vacuum tip over a semiconductor die to be removed. The vacuum tip includes a non-uniform array of vacuum holes to grip the semiconductor wafer.
    Type: Application
    Filed: February 28, 2011
    Publication date: August 30, 2012
    Inventors: Pradeep Kumar Rai, KL Bock, Li Wang, JinXiang Huang, EnYong Tai, JianHua Wang, KH Ong