Fred Mitchel

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Phx., AZ, US

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Patents Grantslast 30 patents

Information Patent Grant
Multi-step chemical mechanical polishing
- Patent number 6,261,158
- Issue date Jul 17, 2001
- Speedfam-IPEC
- Karey Holland
- B24 - GRINDING POLISHING
Information Patent Grant
Semiconductor wafer polishing apparatus with a variable polishing f...
- Patent number 6,056,632
- Issue date May 2, 2000
- SpeedFam-IPEC Corp.
- Fred E. Mitchel
- B24 - GRINDING POLISHING
Information Patent Grant
Semiconductor wafer polishing apparatus with a flexible carrier plate
- Patent number 5,851,140
- Issue date Dec 22, 1998
- Integrated Process Equipment Corp.
- Chris E. Barns
- B24 - GRINDING POLISHING