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Richard Dewitt Crisp, Wael Zohni, Belgacem Haba, Frank Lambrecht: Stub minimization for assemblies without wirebonds to package substrate. Invensas Corporation, Lerner David Littenberg Krumholz & Mentlik, January 14, 2014: US08629545 (20 worldwide citation)

A system or microelectronic assembly can include one or more microelectronic packages each having a substrate and a microelectronic element having a face and one or more columns of contacts thereon which face and are joined to corresponding contacts on a surface of the substrate. An axial plane may ...

Susan K Candelaria, Scott M Carlson, Daniel F Casper, John R Flanagan, Roger G Hathorn, Matthew J Kalos, Louis W Ricci, Dale F Riedy, Harry M Yudenfriend: Facilitating transport mode input/output operations between a channel subsystem and input/output devices. International Business Machines Corporation, Cantor Colburn, Steven Chiu, January 14, 2014: US08631175

A method of performing an input/output operation includes: generating by a channel subsystem at least one command message including one or more device command words (DCWs), at least one DCW including a data count and a suppress-length indication (SLI) configured to instruct a control unit whether to ...



Daniele Mauri, Chih Ching Hu, Ming Mao, Kuok San Ho, Savas Gider: Method and system for providing a side shielded read transducer. Western Digital, January 14, 2014: US08630068 (123 worldwide citation)

A method and system for providing a magnetic transducer having an air-bearing surface (ABS) is described. The magnetic read transducer includes a first shield, a magnetoresistive sensor, at least one soft magnetic side shield, and a second shield. The magnetoresistive sensor includes a sensor layer ...

Weimin Si, Ying Hong, Zhigang Bai, Yunhe Huang, Fenglin Liu, Hong Zhang, Jikou Zhou, Xiaoyu Yang, Yuan Yao, Iulica Zana, Feng Liu, Ling Wang: Process for manufacturing a perpendicular magnetic recording writer pole with nonmagnetic bevel. Western Digital, January 14, 2014: US08628672 (116 worldwide citation)

A method for fabricating a magnetic recording transducer having a magnetic writer pole with a short effective throat height is provided. In an embodiment, a writer structure comprising a magnetic writer pole having a trailing bevel and a nonmagnetic stack on the top surface of the writer pole is pro ...

Kameron Kam Wai Jung, Paul C Santa Ana, Johanes S Ma: Disk drive calibrating radial density then adjusting linear density to balance off-track read capability. Western Digital Technologies, January 14, 2014: US08630052 (99 worldwide citation)

A disk drive is disclosed comprising a plurality of disk surfaces, and a head actuated over each disk surface. An off-track read capability (OTRC) is measured for each disk surface, and a radial density of data tracks for each disk surface is selected in response to the OTRCs. A linear density of at ...

Mark A Heath, Kenny T Coker, Praveen Viraraghavan: Data storage device overlapping host data transfer for a write command with inter-command delay. Western Digital Technologies, January 14, 2014: US08631188 (98 worldwide citation)

A data storage device is disclosed comprising a non-volatile memory, such as a disk of a disk drive or a non-volatile semiconductor memory. First and second write commands are received from a host, and in response first and second write data are requested from the host. The first write data is store ...

George J Bennett, Steven R Vasquez, Robert P Ryan: Systems and methods for data throttling during disk drive power down. Western Digital Technologies, January 14, 2014: US08630054 (94 worldwide citation)

Some embodiments of the invention are directed to a data storage system that includes a disk and solid-state non-volatile memory (NVM). During a power failure, the data storage system may use back EMF (BEMF) voltage from the spindle motor of the disk to park the heads of the disk and/or store data i ...

Xu Chen, Wei Xi, Young Hoon Kim, Kuang Yang Tu: Methods for closed-loop compensation of ultra-high frequency disturbances in hard disk drives and hard disk drives utilizing same. Western Digital Technologies, January 14, 2014: US08630059 (92 worldwide citation)

A disk drive comprises a disk, an actuator arm and a servo controller using a position error signal to generate a controller output signal to control the actuator arm. A plant mechanically models at least a portion of the disk drive, receives a control command to which an unknown disturbance is adde ...

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