1
Unsoon Kim, Hung Sheng Chen, Kashmir Sahota, Yu Sun: Core array and periphery isolation technique. Advanced Micro Devices, Foley & Lardner, December 21, 1999: US06004862 (166 worldwide citation)

A process for forming a semiconductor integrated circuit with a core area densely populated with active devices and with a periphery area less densely populated with active devices as compared to the core area, comprising the steps of: forming a first layer of first insulator material above a semico ...


2
Bill Baker, Steven Lambert, Jong Lin, Michael Anthony Moser, Shu Yu Sun: Self-writing of servo patterns based on printed reference pattern in rotating disk drive. Maxtor Corporation, Michael Zarrabian, October 16, 2001: US06304407 (114 worldwide citation)

A coarse magnetic template pattern is transferred to a data storage surface of a disk by magnetic printing techniques. As printed, the template pattern essentially provides clocking and may provide radial position information. The disk is then assembled into a completed and enclosed disk drive. The ...


3
Pau Ling Chen, Michael A Van Buskirk, Yu Sun: Source side sensing scheme for virtual ground read of flash eprom array with adjacent bit precharge. Advanced Micro Devices, Eschweiler & Associates, March 4, 2003: US06529412 (100 worldwide citation)

A system is disclosed for producing an indication of the logical state of a flash memory cell for virtual ground flash memory operations. The system comprises a bit line precharge and hold circuit which is operable to apply and maintain a source terminal voltage (e.g., about 0 volts, ground) to a bi ...


4
Don Brunnett, Yu Sun, Lin Guo: Method and apparatus for performing a self-servo write operation in a disk drive using spiral servo information. Maxtor Corporation, Fellers Snider et al, June 12, 2007: US07230789 (66 worldwide citation)

The present invention is directed to a method and apparatus for performing a self-servo write operation in a disk drive. In one embodiment, the disk drive includes a disk surface having a read head and a write head associated therewith. Spiral servo information is written onto the disk surface using ...


5
Stanley H Shepherd, Yu Sun, Lin Guo, John VanLaanen: Apparatus for writing servo bursts on a disk with servo track pitch based on read element width and methods of manufacturing same. Maxtor Corporation, Myers Bigel Sibley & Sajovec PA, December 26, 2006: US07154689 (61 worldwide citation)

Methods for making a disk drive, apparatus for writing servo bursts on a disk, and disk drive apparatus are provided. The disk drive includes a disk and transducer adjacent to the disk. The transducer includes a read element and a write element. A width of the read element is determined. A servo tra ...


6
Yider Wu, Jean Yee Mei Yang, Mark Ramsbey, Emmanuel H Lingunis, Yu Sun: Nitride barrier layer for protection of ONO structure from top oxide loss in a fabrication of SONOS flash memory. Advanced Micro Devices, Renner Otto Boisselle & Sklar, August 27, 2002: US06440797 (60 worldwide citation)

A method for fabricating a SONOS device having a buried bit-line including the steps of: providing a semiconductor substrate having an ONO structure overlying the semiconductor substrate; forming a nitride barrier layer on the ONO structure to form a four-layer stack; forming a patterned photoresist ...


7
Xiaoping Hu, Yu Sun, Lin Guo, Don Brunnett: Disk drive head touchdown detection with improved discrimination. Maxtor Corporation, Tejpal S Hansra, January 2, 2007: US07158325 (52 worldwide citation)

A disk drive detects head touchdown based on a magnitude of a position error signal at a discrete frequency. The discrete frequency is one-half the disk rotation frequency or an integral multiple of the disk rotation frequency. The head is heated by turning on a heater at the discrete frequency, the ...


8
Jyi Yu Sun, Tao Chian, Di Kon Shih, Chih Yao Wang: High-efficiency isothermal heat pipe. Industrial Technology Research Institute, Pollock Vande Sande & Priddy, November 14, 1995: US05465782 (47 worldwide citation)

A high-efficiency isothermal heat pipe adapted for use in electronic equipment having a plate-like body with an enclosed inner chamber which has at least a dividing wall extending in the direction from the front end to the rear end of the body, separating the inner chamber into a plurality of zones ...


9
Yu Sun, Michael A Van Buskirk, Mark T Ramsbey: Method of fabricating double densed core gates in sonos flash memory. Advanced Micro Devices, Amin & Turocy, October 7, 2003: US06630384 (43 worldwide citation)

One aspect of the present invention relates to a method of forming a non-volatile semiconductor memory device, involving forming a charge trapping dielectric over a substrate, the substrate having a core region and a periphery region; forming a first set of memory cell gates over the charge trapping ...


10
Hiroyuki Ogawa, Yider Wu, Yu Sun: Die seal for semiconductor device moisture protection. Advanced Micro Devices, Fujitsu, Eschweiler & Associates, May 20, 2003: US06566736 (43 worldwide citation)

Moisture seal apparatus and methodologies are disclosed for protecting semiconductor devices from moisture. An upper seal layer, such as SiN is formed over an upper insulator layer and an exposed portion of a die seal metal structure so as to form a vertical moisture seal between electrical componen ...