Francis Lui This is Me

Education

 Web References

1. 1. EBN - - New head technology tests disk drive sector

   www.ebnews.com/showArticle.jht - [Cached]

   Published on: 9/15/2003   Last Visited: 9/16/2003

   "Areal density growth has been slowing because longitudinal recording is running out of gas," said Francis Lui, director of advanced recording at Read-Rite Corp., Fremont, Calif., which recently was acquired by Western Digital, Irvine, Calif.
   
   Using a new shielded-pole magnetic head, a team consisting of Read-Rite, Fuji Electric, Komag, and Samsung developed an 80Gbyte/platter drive prototype that stored 63.8Gbits/sq. in., an 18% boost in areal density over a longitudinal drive. The drive had a linear density of 725Kbits/sq. in. and a bit error rate of 10-8.
   
   "Today, perpendicular recording is 20% better than longitudinal, but it needs to be twice as good," Lui said.
   ...
   "The very important next step" for drive companies is to build prototypes in volume to identify manufacturing issues, yields, and failures per million for the perpendicular drives, Lui said.
   ...
   While Lui and others said patterned media probably won't come into play until after the switch to perpendicular recording, others disagree.

2. 2. IEEE San Francisco Bay Area Council - GRID

   www.ieee-sfbac.org/may2002/a9. - [Cached]

   Published on: 4/7/2003   Last Visited: 1/6/2004

   Panel with Giora Tarnopolsky, Rajiv Ranjan, and Francis Liu
   ...
   The three speakers who will summarize key results on the recording science facets of InterMag 2002 are Dr. Rajiv Ranjan, Dr. Francis Liu, and Dr. Tarnopolsky.
   ...
   Dr. Ranjan will discuss mostly longitudinal and perpendicular media advances; Dr. Liu will address mostly longitudinal and perpendicular recording head progress; and Dr. Tarnopolsky will present system integration, SNR, and modeling new results.
   ...
   Dr. Francis Liu is director of advanced recording at Read-Rite Corporation. Dr. Liu's charter is to develop and demonstrate the feasibility of future generations of head technology used for longitudinal, perpendicular, and high data rate recording applications. His recent contribution includes Read-Rite's areal density demonstrations of 13.5, 20.9, 26.5, 36, 50.2, 60 (perpendicular recording) and 63.2 Gb/in2 and the data rate demonstration of 1 Gb/sec on both longitudinal and perpendicular recording media. Francis Liu received his PhD in electrical engineering from Carnegie Mellon University in 1994 and is a holder of seven U.S. patents.

3. 3. EBN - - Disk drive makers prepare for perpendicular recording heads

   www.ebnews.com/showArticle.jht - [Cached]

   Published on: 9/12/2003   Last Visited: 9/14/2003

   "Areal density growth has been slowing because longitudinal recording is running out of gas," said Francis Lui, director of advanced recording at Read-Rite Corp., Fremont, Calif., which recently was acquired by Western Digital, Irvine, Calif.
   
   Using a new shielded-pole magnetic head, a team consisting of Read-Rite, Fuji Electric, Komag, and Samsung developed an 80Gbyte/platter drive prototype that stored 63.8Gbits/sq. in., an 18% boost in areal density over a longitudinal drive. The drive had a linear density of 725Kbits/sq. in. and a bit error rate of 10-8.
   
   "Today, perpendicular recording is 20% better than longitudinal, but it needs to be twice as good," Lui said.
   ...
   "The very important next step" for drive companies is to build prototypes in volume to identify manufacturing issues, yields, and failures per million for the perpendicular drives, Lui said.
   ...
   While Lui and others said patterned media probably won't come into play until after the switch to perpendicular recording, others disagree.