loadpatents
name:-0.062538862228394
name:-0.033371925354004
name:-0.0036749839782715
KHO; Leonard Wai Fung Patent Filings

KHO; Leonard Wai Fung

Patent Applications and Registrations

Patent applications and USPTO patent grants for KHO; Leonard Wai Fung.The latest application filed is for "ex situ coating of chamber components for semiconductor processing".

Company Profile
3.35.54
  • KHO; Leonard Wai Fung - San Francisco CA
  • Kho; Leonard Wai Fung - San Fransico CA
*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.
Patent Activity
PatentDate
Ex Situ Coating Of Chamber Components For Semiconductor Processing
App 20220275504 - SHANBHAG; Damodar Rajaram ;   et al.
2022-09-01
Ex situ coating of chamber components for semiconductor processing
Grant 11,365,479 - Shanbhag , et al. June 21, 2
2022-06-21
Edge Exclusion Control
App 20210375591 - Chandrashekar; Anand ;   et al.
2021-12-02
Ex Situ Coating Of Chamber Components For Semiconductor Processing
App 20200347497 - Shanbhag; Damodar ;   et al.
2020-11-05
Ex situ coating of chamber components for semiconductor processing
Grant 10,760,158 - Shanbhag , et al. Sep
2020-09-01
Ex Situ Coating Of Chamber Components For Semiconductor Processing
App 20190185999 - Shanbhag; Damodar ;   et al.
2019-06-20
Apparatus And Method For Providing Fluid For Immersion Lithography
App 20190137888 - POON; Alex Ka Tim ;   et al.
2019-05-09
Apparatus and method for providing fluid for immersion lithography
Grant 10,203,610 - Poon , et al. Feb
2019-02-12
Apparatus And Method For Providing Fluid For Immersion Lithography
App 20180039187 - POON; Alex Ka Tim ;   et al.
2018-02-08
Apparatus and method for providing fluid for immersion lithography
Grant 9,817,319 - Poon , et al. November 14, 2
2017-11-14
Apparatus And Method For Providing Fluid For Immersion Lithography
App 20170108784 - POON; Alex Ka Tim ;   et al.
2017-04-20
Apparatus and method for providing fluid for immersion lithography
Grant 9,547,243 - Poon , et al. January 17, 2
2017-01-17
Apparatus and method to control vacuum at porous material using multiple porous materials
Grant 9,329,492 - Poon , et al. May 3, 2
2016-05-03
Apparatus and method for providing fluid for immersion lithography
Grant 9,285,683 - Poon , et al. March 15, 2
2016-03-15
Apparatus and methods for keeping immersion fluid adjacent to an optical assembly during wafer exchange in an immersion lithography machine
Grant 9,217,933 - Poon , et al. December 22, 2
2015-12-22
Immersion lithography apparatus and method having movable liquid diverter between immersion liquid confinement member and substrate
Grant 9,176,394 - Poon , et al. November 3, 2
2015-11-03
Apparatus And Method For Providing Fluid For Immersion Lithography
App 20150036113 - POON; Alex Ka Tim ;   et al.
2015-02-05
Apparatus and methods for recovering fluid in immersion lithography
Grant 8,934,080 - Poon , et al. January 13, 2
2015-01-13
Apparatus and method for providing fluid for immersion lithography
Grant 8,896,807 - Poon , et al. November 25, 2
2014-11-25
Apparatus And Methods For Keeping Immersion Fluid Adjacent To An Optical Assembly During Wafer Exchange In An Immersion Lithography Machine
App 20140232999 - POON; Alex Ka Tim ;   et al.
2014-08-21
Apparatus and method for recovering liquid droplets in immersion lithography
Grant 8,780,323 - Poon , et al. July 15, 2
2014-07-15
Apparatus and methods for keeping immersion fluid adjacent to an optical assembly during wafer exchange in an immersion lithography machine
Grant 8,743,343 - Poon , et al. June 3, 2
2014-06-03
Immersion Lithography Apparatus And Method Having Movable Liquid Diverter Between Immersion Liquid Confinement Member And Substrate
App 20140071412 - POON; Alex Ka Tim ;   et al.
2014-03-13
Apparatus and method to control vacuum at porous material using multiple porous materials
Grant 8,634,055 - Poon , et al. January 21, 2
2014-01-21
Immersion lithography apparatus and method having movable liquid diverter between immersion liquid confinement member and substrate
Grant 8,610,873 - Poon , et al. December 17, 2
2013-12-17
Apparatus And Method For Providing Fluid For Immersion Lithography
App 20130301015 - POON; Alex Ka Tim ;   et al.
2013-11-14
Apparatus And Method To Control Vacuum At Porous Material Using Multiple Porous Materials
App 20130286366 - POON; Alex Ka Tim ;   et al.
2013-10-31
Apparatus and method for providing fluid for immersion lithography
Grant 8,520,187 - Poon , et al. August 27, 2
2013-08-27
Apparatus and method to control vacuum at porous material using multiple porous materials
Grant 8,477,284 - Poon , et al. July 2, 2
2013-07-02
Apparatus And Methods For Keeping Immersion Fluid Adjacent To An Optical Assembly During Wafer Exchange In An Immersion Lithography Machine
App 20130141702 - POON; Alex Ka Tim ;   et al.
2013-06-06
Apparatus And Methods For Recovering Fluid In Immersion Lithography
App 20130010271 - POON; Alex Ka Tim ;   et al.
2013-01-10
Apparatus And Methods For Keeping Immersion Fluid Adjacent To An Optical Assembly During Wafer Exchange In An Immersion Lithography Machine
App 20120262687 - Poon; Alex Ka Tim ;   et al.
2012-10-18
Apparatus and methods for recovering fluid in immersion lithography
Grant 8,289,497 - Poon , et al. October 16, 2
2012-10-16
Apparatus And Methods To Recover Liquid In Immersion Lithography
App 20120257179 - COON; Derek ;   et al.
2012-10-11
Microchannel-cooled Coils Of Electromagnetic Actuators Exhibiting Reduced Eddy-current Drag
App 20120062866 - Binnard; Michael B. ;   et al.
2012-03-15
Apparatus and method for providing fluid for immersion lithography
App 20120013861 - Poon; Alex Ka Tim ;   et al.
2012-01-19
Nozzle to help reduce the escape of immersion liquid from an immersion lithography tool
Grant 8,068,209 - Poon , et al. November 29, 2
2011-11-29
Apparatus and method for providing fluid for immersion lithography
Grant 8,054,448 - Poon , et al. November 8, 2
2011-11-08
Apparatus and method for recovering liquid droplets in immersion lithography
App 20110164239 - Poon; Alex Ka Tim ;   et al.
2011-07-07
Apparatus and method for recovering liquid droplets in immersion lithography
Grant 7,929,109 - Poon , et al. April 19, 2
2011-04-19
Electromagnetic Coil Design for Improved Thermal Performance
App 20100271159 - Poon; Alex Ka Tim ;   et al.
2010-10-28
Apparatus and method for recovering fluid for immersion lithography
App 20100231876 - Poon; Alex Ka Tim ;   et al.
2010-09-16
Apparatus And Method To Control Liquid Stagnation In Immersion Liquid Recovery
App 20100220301 - POON; Alex Ka Tim ;   et al.
2010-09-02
Reticle Error Reduction By Cooling
App 20100186942 - Phillips; Alton H. ;   et al.
2010-07-29
Apparatus and method for recovering fluid for immersion lithography
Grant 7,751,026 - Poon , et al. July 6, 2
2010-07-06
Apparatus And Method To Control Vacuum At Porous Material Using Multiple Porous Materials
App 20100134773 - POON; Alex Ka Tim ;   et al.
2010-06-03
Apparatus And Method To Control Vacuum At Porous Material Using Multiple Porous Materials
App 20100097585 - POON; Alex Ka Tim ;   et al.
2010-04-22
Apparatus and method for providing fluid for immersion lithography
App 20090296053 - Poon; Alex Ka Tim ;   et al.
2009-12-03
Apparatus and methods for recovering fluid in immersion lithography
App 20090237631 - Poon; Alex Ka Tim ;   et al.
2009-09-24
Immersion lithography apparatus and method having movable liquid diverter between immersion liquid confinement member and substrate
App 20090231560 - Poon; Alex Ka Tim ;   et al.
2009-09-17
Gas curtain type immersion lithography tool using porous material for fluid removal
Grant 7,576,833 - Poon , et al. August 18, 2
2009-08-18
Immersion lithography system and method having an immersion fluid containment plate for submerging the substrate to be imaged in immersion fluid
Grant 7,532,309 - Poon , et al. May 12, 2
2009-05-12
Gas curtain type immersion lithography tool using porous material for fluid removal
App 20090002648 - Poon; Alex Ka Tim ;   et al.
2009-01-01
Nozzle to help reduce the escape of immersion liquid from an immersion lithography tool
App 20080231822 - Poon; Alex Ka Tim ;   et al.
2008-09-25
Apparatus and methods for reducing the escape of immersion liquid from immersion lithography apparatus
App 20080231823 - Poon; Alex Ka Tim ;   et al.
2008-09-25
Apparatus and methods for keeping immersion fluid adjacent to an optical assembly during wafer exchange in an immersion lithography machine
App 20080225246 - Poon; Alex Ka Tim ;   et al.
2008-09-18
Apparatus, systems and methods for removing liquid from workpiece during workpiece processing
App 20080225248 - Poon; Alex Ka Tim ;   et al.
2008-09-18
Apparatus and methods for removing immersion liquid from substrates using temperature gradient
App 20080212050 - Poon; Alex Ka Tim ;   et al.
2008-09-04
Apparatus and methods for minimizing force variation from immersion liquid in lithography systems
App 20080198348 - Poon; Alex Ka Tim ;   et al.
2008-08-21
Non-contact pneumatic transfer for stages with small motion
Grant 7,375,800 - Poon , et al. May 20, 2
2008-05-20
Immersion lithography system and method having a wafer chuck made of a porous material
App 20080100812 - Poon; Alex Ka Tim ;   et al.
2008-05-01
Exposure apparatus that includes a phase change circulation system for movers
App 20080073563 - Novak; W. Thomas ;   et al.
2008-03-27
Apparatus and methods for recovering fluid in immersion lithography
App 20080043211 - Poon; Alex Ka Tim ;   et al.
2008-02-21
Stage assembly with secure device holder
App 20070292245 - Phillips; Alton H. ;   et al.
2007-12-20
Immersion lithography system and method having an immersion fluid containment plate for submerging the substrate to be imaged in immersion fluid
App 20070279608 - Poon; Alex Ka Tim ;   et al.
2007-12-06
Apparatus and method for providing fluid for immersion lithography
Grant 7,292,313 - Poon , et al. November 6, 2
2007-11-06
System and method for measuring displacement of a stage
Grant 7,283,200 - Poon , et al. October 16, 2
2007-10-16
Apparatus and Method for Providing Fluid for Immersion Lithography
App 20070222967 - Poon; Alex Ka Tim ;   et al.
2007-09-27
Apparatus and method for providing fluid for immersion lithography
App 20070195303 - Poon; Alex Ka Tim ;   et al.
2007-08-23
Force provider with adjustable force characteristics for a stage assembly
App 20070131879 - Poon; Alex Ka Tim ;   et al.
2007-06-14
Apparatus and method for containing immersion liquid in immersion lithography
App 20070126999 - Poon; Alex Ka Tim ;   et al.
2007-06-07
Apparatus and method for recovering liquid droplets in immersion lithography
App 20070091289 - Poon; Alex Ka Tim ;   et al.
2007-04-26
Apparatus and method for recovering fluid for immersion lithography
App 20070046910 - Poon; Alex Ka Tim ;   et al.
2007-03-01
Apparatus and method for providing fluid for immersion lithography
App 20060152697 - Poon; Alex Ka Tim ;   et al.
2006-07-13
Non-contact pneumatic transfer for stages with small motion
App 20060050262 - Poon; Alex Ka Tim ;   et al.
2006-03-09
Force provider for a mover assembly of a stage assembly
App 20050169784 - Poon, Alex Ka Tim ;   et al.
2005-08-04
Offset gap control for electromagnetic devices
App 20050162802 - Kho, Leonard Wai Fung ;   et al.
2005-07-28
Modular stage with reaction force cancellation
Grant 6,917,412 - Poon , et al. July 12, 2
2005-07-12
Stage with isolated actuators for low vacuum environment
App 20050093502 - Poon, Alex Ka Tim ;   et al.
2005-05-05
System and method for measuring displacement of a stage
App 20050012918 - Poon, Alex Ka Tim ;   et al.
2005-01-20
Modular Stage With Reaction Force Cancellation
App 20040165172 - Poon, Alex Ka Tim ;   et al.
2004-08-26
Double isolation fine stage
App 20040119964 - Poon, Alex Ka Tim ;   et al.
2004-06-24

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