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Focused laser beam processing
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Patent number 7,718,554
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Issue date May 18, 2010
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WaferMasters, Inc.
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Woo Sik Yoo
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Spectroscopy system
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Patent number 7,564,547
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Issue date Jul 21, 2009
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WaferMasters, Inc.
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Woo Sik Yoo
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G01 - MEASURING TESTING
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Spectroscopy system
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Patent number 7,397,561
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Issue date Jul 8, 2008
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WaferMasters, Incorporated
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Woo Sik Yoo
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G01 - MEASURING TESTING
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Light beam conditioner
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Patent number 7,262,918
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Issue date Aug 28, 2007
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WaferMasters Incorporated
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Woo Sik Yoo
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H01 - BASIC ELECTRIC ELEMENTS
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Low temperature wafer backside cleaning
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Patent number 7,198,677
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Issue date Apr 3, 2007
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WaferMasters, Inc.
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Woo Sik Yoo
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Stacked annealing system
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Patent number 7,194,199
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Issue date Mar 20, 2007
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WaferMasters, Inc.
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Woo Sik Yoo
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H01 - BASIC ELECTRIC ELEMENTS
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Power generation system
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Patent number 6,932,561
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Issue date Aug 23, 2005
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WaferMasters, Inc.
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Woo Sik Yoo
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F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
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Batch furnace
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Patent number 6,879,778
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Issue date Apr 12, 2005
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WaferMasters, Inc.
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Woo Sik Yoo
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Wafer processing apparatus
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Patent number 6,840,763
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Issue date Jan 11, 2005
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WaferMasters, Inc.
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Yoo Woo Sik
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H01 - BASIC ELECTRIC ELEMENTS
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Hot plate annealing
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Patent number 6,809,035
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Issue date Oct 26, 2004
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WaferMasters, Inc.
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Woo Sik Yoo
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H01 - BASIC ELECTRIC ELEMENTS
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Source gas delivery
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Patent number 6,790,475
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Issue date Sep 14, 2004
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WaferMasters Inc.
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Woo Sik Yoo
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Wafer batch processing system and method
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Patent number 6,727,194
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Issue date Apr 27, 2004
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WaferMasters, Inc.
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Woo Sik Yoo
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Benchtop processing
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Patent number 6,709,470
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Issue date Mar 23, 2004
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WaferMasters, Inc.
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Woo Sik Yoo
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H01 - BASIC ELECTRIC ELEMENTS
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Rotary valve
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Patent number 6,698,718
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Issue date Mar 2, 2004
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WaferMasters, Inc.
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Woo Sik Yoo
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...