Patents by Inventor Timothy Cowles

Timothy Cowles 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: 20050114803
    Abstract: A lower current input buffer is used for waking up a plurality of higher-current buffers. The lower current buffer monitors a wake-up signal and, when present, enables the higher current buffers. A higher current buffer is used to detect the sleep mode and disable the higher current buffers. A delay circuit may be used to balance the propagation delay through the circuit.
    Type: Application
    Filed: July 26, 2004
    Publication date: May 26, 2005
    Inventors: Aaron Schoenfeld, Greg Blodgett, Timothy Cowles
  • Publication number: 20050099842
    Abstract: A low-current input buffer is disclosed. The buffer uses self-biased N and P channel differential pairs with their outputs tied together. The self-biasing assists in reducing current consumption. The combination of N and P-channel differential pairs results in symmetry across a wide range of reference and supply voltages.
    Type: Application
    Filed: December 6, 2004
    Publication date: May 12, 2005
    Inventors: Timothy Cowles, Steve Casper
  • Publication number: 20050099843
    Abstract: A low-current input buffer is disclosed. The buffer uses self-biased N and P channel differential pairs with their outputs tied together. The self-biasing assists in reducing current consumption. The combination of N and P-channel differential pairs results in symmetry across a wide range of reference and supply voltages.
    Type: Application
    Filed: December 6, 2004
    Publication date: May 12, 2005
    Inventors: Timothy Cowles, Steve Casper
  • Publication number: 20050059175
    Abstract: A semiconductor wafer or other bulk semiconductor substrate having a plurality of dice thereon is manufactured using conventional processing techniques. The wafer is subjected to testing to identify functional and nonfunctional dice. The locations of the functional dice are analyzed to determine the location of immediately adjacent or closely proximate functional dice. A group of functional dice is identified and an interconnection circuit is formed therebetween. The functional die group, once interconnected, is then segmented from the wafer while maintaining the unitary integrity of the functional die group as well as the associated interconnections between dice. Modules including one or more functional die groups and methods of fabricating functional die groups and modules are also disclosed.
    Type: Application
    Filed: August 20, 2004
    Publication date: March 17, 2005
    Inventors: Aron Lunde, Kevin Duesman, Timothy Cowles
  • Publication number: 20050056945
    Abstract: A semiconductor wafer or other bulk semiconductor substrate having a plurality of dice thereon is manufactured using conventional processing techniques. The wafer is subjected to testing to identify functional and nonfunctional dice. The locations of the functional dice are analyzed to determine the location of immediately adjacent or closely proximate functional dice. A group of functional dice is identified and an interconnection circuit is formed therebetween. The functional die group, once interconnected, is then segmented from the wafer while maintaining the unitary integrity of the functional die group as well as the associated interconnections between dice. Modules including one or more functional die groups and methods of fabricating functional die groups and modules are also disclosed.
    Type: Application
    Filed: September 16, 2003
    Publication date: March 17, 2005
    Inventors: Aron Lunde, Kevin Duesman, Timothy Cowles
  • Publication number: 20050052932
    Abstract: As part of anti-fuse circuitry for a memory device, a preferred exemplary embodiment of the current invention provides a direct connection between an anti-fuse and a contact pad used to provide voltage to that anti-fuse. The contact pad also serves as a voltage source for at least one other part of the memory device. At least one circuit coupled to the anti-fuse is temporarily isolated from it in the event that a voltage present at the pad would damage the circuit or cause the circuit to improperly read the status of the anti-fuse. The contact pad is available during a probe stage of the in-process memory device, but once the device is packaged, access to that contact pad is prevented. At the back end of the production process, the anti-fuse may be accessed through a second pad, whose electrical communication with the anti-fuse is regulated.
    Type: Application
    Filed: August 16, 2004
    Publication date: March 10, 2005
    Inventor: Timothy Cowles
  • Publication number: 20050041481
    Abstract: A booting circuit, used during antifuse programming, that has a clamping circuit designed to prevent a programming voltage from being unnecessarily limited by other components in an integrated circuit. The booting circuit is connected between an external interface, such as a bond pad, and an internal line, and is activated when the programming voltage is being applied directly to the internal line (i.e., not through the external interface). When activated, the clamping circuit allows a suitable and sufficiently high voltage to be applied to the internal line to properly program the antifuses while also clamping the amount of voltage seen at the external interface.
    Type: Application
    Filed: September 2, 2004
    Publication date: February 24, 2005
    Inventors: Jeffrey Koelling, Timothy Cowles
  • Publication number: 20050026315
    Abstract: An isolation circuit includes a first pad adapted to receive a control signal and a second pad adapted to receive another signal. A third pad is coupled to a microelectronic die and a device is provided to transfer the other signal from the second pad to the third pad in response to the control signal.
    Type: Application
    Filed: August 30, 2004
    Publication date: February 3, 2005
    Inventors: Timothy Cowles, Aron Lunde
  • Publication number: 20050024931
    Abstract: The disclosed embodiments relate to an input buffer circuit that comprises an input buffer adapted to draw an operating current. The input buffer further comprises means for providing a first portion of the operating current to the input buffer, and means for providing a second portion of the operating current to the input buffer if the input buffer is expecting data.
    Type: Application
    Filed: August 27, 2004
    Publication date: February 3, 2005
    Inventor: Timothy Cowles
  • Publication number: 20030045026
    Abstract: A method used to form a semiconductor device comprises providing first and second circuit portions having first and second pad portions respectively. The second circuit portion is electrically isolated from the first circuit portion. The first and second pad portions are then electrically connected, for example with a ball bond or a wire bond, to electrically couple the first and second circuit portions. In various embodiments the semiconductor device will not function until the pad portions are electrically coupled, and in other embodiments the functionality of the device may be selectively controlled by connecting selected pad portions from a plurality of pad portions. Isolating the first and second circuit portions allows electrical operations such as antifuse programming to be carried out without adversely affecting related circuits. Once electrical operations are completed, the isolated circuit portions are electrically coupled to provide a complete circuit.
    Type: Application
    Filed: August 30, 2001
    Publication date: March 6, 2003
    Inventors: Rich Fogal, Tracy Reynolds, Timothy Cowles