LAN VU
Cosmetology at Day Cp Ln, Austin, TX
License number
Texas 1638280
Expiration Date
Aug 14, 2018
Category
Cosmetologist
Address
Address
11612 Day Camp Ln, Austin, TX 78754
Phone
(512) 203-5792
Professional information
Lan Vu
Location:
Austin, Texas Area
Industry:
Computer Software
Modified Material Deposition Sequence For Reduced Detect Densities In Semiconductor Manufacturing
US Patent:
6270580, Aug 7, 2001
Filed:
Apr 12, 1999
Appl. No.:
9/291138
Inventors:
Lan Vu - Austin TX
Dennis C. Swartz - Buda TX
Jeff Watts - Georgetown TX
Dennis C. Swartz - Buda TX
Jeff Watts - Georgetown TX
Assignee:
Advanced Micro Devices, Inc. - Sunnyvale CA
International Classification:
C23C 1600
US Classification:
118666
Abstract:
A method and apparatus for forming high-quality deposited material layers in semiconductor manufacturing are provided. In the method, the initial stages of a deposition are performed with no current flowing through substrate heater filaments. Current is restored to the heater filaments when needed to maintain the substrate within an acceptable range around a target or setpoint temperature. When an on/off temperature controller is used, the method may be implemented without disturbing the normal operation of the controller, by monitoring the heater filament current and beginning a deposition just after the current has been turned off by the controller. Current may also be removed from the heater filaments at the end of the deposition, so that concentrations of deposition species may equilibrate without the presence of heater currents. Performing as much of the deposition as possible with the substrate heater current off is believed to reduce defect formation which may be associated with magnetic fields and outgassing resulting from heater filament operation. A substrate heater design is provided in which heater filaments are eliminated and the substrate is heated using a heated, circulating fluid.
System And Method For Multi-Tier Multi-Casting Over The Internet
US Patent:
2003002, Jan 30, 2003
Filed:
Jul 28, 2001
Appl. No.:
09/917412
Inventors:
Lan Ngoc Vu - Austin TX, US
International Classification:
G06F015/16
US Classification:
709/230000, 709/203000
Abstract:
System and method adapted to multi-cast over the Internet using multiple tiers of servers. Preferably, the content server transmits content to servers in the next lower tier, which may include one or more client servers, using multi-cast, but may use uni-cast. Preferably, each server in all intermediate tiers transmits content to the servers in the next lower tier, which may include one or more client servers, using multi-cast, but may use uni-cast. Each client server transmits to its clients using multi-cast. The quality of a live cast received by each client server may be improved using the more efficient UDP/IP for downloading the bulk of the content and compensating for the occasional lost segments of data using the more reliable TCP/IP.
System And Method For Multi-Tier Multi-Casting Over The Internet
US Patent:
2007023, Oct 4, 2007
Filed:
May 31, 2007
Appl. No.:
11/809582
Inventors:
Lan Vu - Austin TX, US
International Classification:
G06F 15/173
US Classification:
709226000
Abstract:
System and method adapted to multi-cast over the Internet using multiple tiers of servers. Preferably, the content server transmits content to servers in the next lower tier, which may include one or more client servers, using multi-cast, but may use uni-cast. Preferably, each server in all intermediate tiers transmits content to the servers in the next lower tier, which may include one or more client servers, using multi-cast, but may use uni-cast. Each client server transmits to its clients using multi-cast. The quality of a live cast received by each client server may be improved using the more efficient UDP/IP for downloading the bulk of the content and compensating for the occasional lost segments of data using the more reliable TCP/IP.