Patents by Inventor Shawn D. Eggum

Shawn D. Eggum 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: 20030025245
    Abstract: A composite wafer carrier according to an embodiment of the present invention comprises an operative portion formed of a first thermoplastic material and a support portion formed of a second different thermoplastic material. One of the operative portion and support portion is overmolded onto the other to form a gapless hermitic interface that securely bonds the portions together. The operative portion may be a transparent window, a portion of a latching mechanism or a wafer contact portion. Preferred embodiments of the invention include wafer carriers with said features, process carriers with said features and a process for manufacturing wafer carriers with said features.
    Type: Application
    Filed: August 5, 2002
    Publication date: February 6, 2003
    Applicant: Entegris, Inc.
    Inventors: Sanjiv M. Bhatt, Shawn D. Eggum
  • Patent number: 6428729
    Abstract: A wafer carrier is formed from at least two different melt processable plastic materials in which the two plastic materials are strategically positioned for optimal performance and have a thermophysical bond created during an overmolding process. The invention includes carriers made of such different melt processable plastic materials and includes the process for manufacturing such carriers. In a preferred embodiment a H-bar wafer carrier will have a first structural portion molded of polycarbonate in a first mold cavity and will then have the polycarbonate molded portion placed in a second mold cavity and polyetheretherketone will be injection molded to form wafer contact portions on the H-bar carrier. Process temperatures and mold temperatures are controlled to provide optimal bonding between the dissimilar materials. Thus, an integral wafer carrier of composite materials is formed.
    Type: Grant
    Filed: May 25, 1999
    Date of Patent: August 6, 2002
    Assignee: Entegris, Inc.
    Inventors: Sanjiv M. Bhatt, Shawn D. Eggum
  • Patent number: 6164530
    Abstract: The present invention provides a method and apparatus for monitoring the progress of a plurality of batches of semiconductor wafer or memory disks through a multiplicity of processing operations at various locations within a plant facility and maintaining information regarding the progress of each batch at the respective batch. The method includes the step of inserting each of the batches of wafers or memory disks in a carrier constructed and arranged for supporting the wafers or disks in parallel, axially arranged, spaced arrays. A transponder is embedded in a planar wall portion within each carrier by way of a recess extending inwardly from a lower edge of the wall portion. The transponder has a code to identify the carrier and a batch of wafers or disks contained therein and to further identify the various processing operations to which the batch has been subjected.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: December 26, 2000
    Assignee: Fluoroware, Inc.
    Inventors: Nicholas T. Cheesebrow, Shawn D. Eggum, Robert D. Kos, Randy S. Williams
  • Patent number: 6039186
    Abstract: A composite wafer carrier for holding and restraining circular semiconductor wafer disks during their transport, storage, and processing. The composite wafer carrier generally comprising an open top and bottom for insertion and removal of wafer disk, an upright front end member having an interface portion such as an H-bar, an upright back end member, and a pair of sidewall members with vertical sidewall slots extending rearwardly from the front end member to said back end member. At least one of said members separately molded and joined to the other members of the wafer carrier by cooperating engagement portions without external fasteners. The wafer carrier may be snapped together. A separate second interface at the back end member may be provided to allow the carrier to interface with equipment with the wafer top side up or inverted.
    Type: Grant
    Filed: April 10, 1998
    Date of Patent: March 21, 2000
    Assignee: Fluoroware, Inc.
    Inventors: Sanjiv M. Bhatt, Shawn D. Eggum, Wayne C. Olson
  • Patent number: 5248033
    Abstract: A container for storing and transporting a wafer carrier filled with wafers and comprising a box with an openable lid, the box bottom having an inclined bottom panel portion and an inclined sidewall panel portion, supporting the bottom of the carrier and the H-bar end wall.
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: September 28, 1993
    Assignee: Fluoroware, Inc.
    Inventors: Robert D. Kos, Tracy J. Niebeling, Shawn D. Eggum
  • Patent number: 5123681
    Abstract: A silicon wafer storage box must be secured by a functional and convenient latch during the fabrication and transportation of silicon wafers. The present invention encompasses such a functional, convenient latch adaptable for either manual or automated manipulation. The invention includes a rigid upper tab having a peg adapted for interaction with a robot arm of an automated process. The invention also includes a resiliently flexible bottom bight having a horizontally extending rigid lower tab, adapted for manual manipulation. The invention permits convenient, efficient manipulation of the latch by either a person or by an automated process.
    Type: Grant
    Filed: March 20, 1991
    Date of Patent: June 23, 1992
    Assignee: Fluoroware, Inc.
    Inventors: Robert D. Kos, Tracy J. Niebeling, Shawn D. Eggum