Patents by Inventor Wayne J. Rothschild

Wayne J. Rothschild 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: 9086368
    Abstract: Two test coupons are utilized in an apparatus, method and design process/structure for determining the moisture content in an electronic circuit board (e.g., a printed circuit board (PCB) or panel). The first coupon has a laminate stack-up with voltage planes separated from each other by dielectric material. These voltage planes include etched clearances with neither plated through holes (PTHs) nor drilled holes extending therethrough. The second coupon is substantially identical to the first coupon except that each of the voltage planes of the first coupon includes PTHs extending through etched clearances corresponding to the etched clearances of the first coupon. In one embodiment, an alarm indicating unacceptably high moisture content is generated if a delta capacitance calculated as a difference between capacitance measurements acquired from the respective coupons is greater than a threshold. Preferably, the alarm notifies a user that at least one aqueous process related to PTH formation is implicated.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: July 21, 2015
    Assignee: International Business Machines Corporation
    Inventors: Joseph Kuczynski, Wayne J. Rothschild, Kevin A. Splittstoesser
  • Publication number: 20120217987
    Abstract: Two test coupons are utilized in an apparatus, method and design process/structure for determining the moisture content in an electronic circuit board (e.g., a printed circuit board (PCB) or panel). The first coupon has a laminate stack-up with voltage planes separated from each other by dielectric material. These voltage planes include etched clearances with neither plated through holes (PTHs) nor drilled holes extending therethrough. The second coupon is substantially identical to the first coupon except that each of the voltage planes of the first coupon includes PTHs extending through etched clearances corresponding to the etched clearances of the first coupon. In one embodiment, an alarm indicating unacceptably high moisture content is generated if a delta capacitance calculated as a difference between capacitance measurements acquired from the respective coupons is greater than a threshold. Preferably, the alarm notifies a user that at least one aqueous process related to PTH formation is implicated.
    Type: Application
    Filed: February 24, 2011
    Publication date: August 30, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Joseph Kuczynski, Wayne J. Rothschild, Kevin A. Splittstoesser
  • Patent number: 7856341
    Abstract: Sensors are located on first and second regions of a heat sink, with a portion of the heat sink interposed between the first and second region sensors. The heat sink is connected to a component by an attachment that conducts heat from the component to the heat sink, and a third sensor is located on the component or the attachment with a portion of the attachment disposed between the third sensor and the first and second heat sink region sensors. Temperature readings from the sensors are compared to identify a failing one of the heat sink, the attachment portion, and the component with respect to heat conduction, which includes identifying the interposed heat sink portion as failing in response to a divergence between temperature inputs from the first and second heat sink region sensors. Rate-of-rise temperature readings may also be observed and compared, including to historical values.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: December 21, 2010
    Assignee: International Business Machines Corporation
    Inventors: Brian L. Carlson, Bruce J. Chamberlin, Mark K. Hoffmeyer, Ahmad D. Katnani, Matthew S. Kelly, Gregory S. Killinger, Eric V. Kline, Wayne J. Rothschild, Jeffrey A. Taylor
  • Publication number: 20090210190
    Abstract: Where an attachment means connects a heat sink to a system component, heat is thereby conducted to the heat sink from the component, a temperature sensor is located on the heat sink and another on the component or the attachment means, a portion of the attachment means is disposed between the sensors. Temperature readings from the sensors are compared to identify a failing one of the heat sink, the attachment means portion, and the component, with respect to heat conduction. Corrective action may be identified, and self-power means may also be provided to supply operative power. A wireless output circuit may be provided. Multiple heat sink sensors may be provided in any element. Rate-of-rise temperature readings may be observed and compared, including to historical values.
    Type: Application
    Filed: February 19, 2008
    Publication date: August 20, 2009
    Applicant: International Business Machine Corporation
    Inventors: Brian L. Carlson, Bruce J. Chamberlin, Mark K. Hoffmeyer, Ahmad D. Katnani, Matthew S. Kelly, Gregory S. Killinger, Eric V. Kline, Wayne J. Rothschild, Jeffrey A. Taylor
  • Patent number: 5412519
    Abstract: To reduce disk drive power consumption, a reduced disk rotational velocity idle mode is used wherein in-situ components of the drive calibrate the landing (or take-off) speed of each head/disk combination and establish a transition speed incrementally above the highest landing speed to assure that the heads both fly above the confronting disk surfaces and avoid substantially all the asperities projecting from the disk surfaces. This can be accomplished using digital harmonic ratio flyheight (HRF) measurement techniques. This system optimizes the power savings to the characteristics of the particular drive. The power saving can be imposed in stages, initially to maintain the capability of quick return to operating conditions and a final stage that realizes maximum power savings. The transition speed is recalibrated periodically, which enables monitoring of the device for degradation or future imminent failure as sequential transition speeds change.
    Type: Grant
    Filed: August 26, 1993
    Date of Patent: May 2, 1995
    Assignee: International Business Machines Corporation
    Inventors: Donald C. Buettner, Wayne J. Rothschild, Gordon J. Smith
  • Patent number: 4789913
    Abstract: In a magnetic disk file having a plurality of disks and a source of organic lubricant mounted within a housing, an air flow stream recirculates within the housing. The vapor pressure of the lubricant source is controlled to provide vapor phase transport of lubricant molecules between the source and the disks' recording surfaces. The lubricant molecules bidirectionally transfer between the air stream and the source, and between the air stream and the surface of the disks, as is needed to maintain a mono-molecular lubricant film, in the range of about 3 to 15 angstroms, on the disks in accordance with the principle of Langmuir kinetics. The disks are rigid disks and their recording surface includes a carbon overcoat. This overcoat has an affinity for the airborne organic lubricant molecules.In a first embodiment, the vapor pressure of the lubricant is controlled by mounting the material at the coolest location within the housing.
    Type: Grant
    Filed: August 3, 1987
    Date of Patent: December 6, 1988
    Assignee: International Business Machines Corporation
    Inventors: Thomas A. Gregory, Christopher G. Keller, Bruce E. Kennedy, Bruce A. Murray, Wayne J. Rothschild