Wolfgang Keller

Person

Munich, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Floating zone drawing circuitry for semiconductor rods
- Patent number 4,900,887
- Issue date Feb 13, 1990
- Siemens Aktiengesellschaft
- Wolfgang Keller
- C30 - CRYSTAL GROWTH
Information Patent Grant
Induction heater for floating zone melting
- Patent number 4,797,525
- Issue date Jan 10, 1989
- Siemens Aktiengesellschaft
- Wolfgang Keller
- C30 - CRYSTAL GROWTH
Information Patent Grant
Apparatus for doping semiconductor rods with solid dopants
- Patent number 4,696,716
- Issue date Sep 29, 1987
- Siemens Aktiengesellschaft
- Wolfgang Keller
- C30 - CRYSTAL GROWTH
Information Patent Grant
Apparatus for crucible-free floating-zone melting a semiconductor r...
- Patent number 4,579,719
- Issue date Apr 1, 1986
- Siemens Aktiengesellschaft
- Wolfgang Keller
- C30 - CRYSTAL GROWTH
Information Patent Grant
Induction coil in the form of a pancake coil for crucible-free zone...
- Patent number 4,538,279
- Issue date Aug 27, 1985
- Siemens Aktiengesellschaft
- Wolfgang Keller
- C30 - CRYSTAL GROWTH
Information Patent Grant
Induction coil in the form of a flat coil for crucible-free floatin...
- Patent number 4,506,132
- Issue date Mar 19, 1985
- Siemens Katiengesellschaft
- Wolfgang Keller
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of setting a stable melting zone in a semiconductor crystall...
- Patent number 4,436,578
- Issue date Mar 13, 1984
- Siemens Aktiengesellschaft
- Wolfgang Keller
- C30 - CRYSTAL GROWTH
Information Patent Grant
Method and apparatus for the manufacture of silicon by crucible-fre...
- Patent number 4,392,230
- Issue date Jul 5, 1983
- Siemens Aktiengesellschaft
- Wolfgang Keller
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Current lead-in of the coaxial type for sealing to a container wall
- Patent number 4,361,716
- Issue date Nov 30, 1982
- Siemens Aktiengesellschaft
- Wolfgang Keller
- C30 - CRYSTAL GROWTH
Information Patent Grant
Method of producing current lead-ins having coaxial construction
- Patent number 4,331,827
- Issue date May 25, 1982
- Siemens Aktiengesellschaft
- Wolfgang Keller
- C30 - CRYSTAL GROWTH
Information Patent Grant
Process for producing phosophorous-doped silicon monocrystals havin...
- Patent number 4,126,509
- Issue date Nov 21, 1978
- Siemens Aktiengesellschaft
- Wolfgang Keller
- C30 - CRYSTAL GROWTH
Information Patent Grant
Process for producing plate-shaped silicon bodies for solar cells
- Patent number 4,108,714
- Issue date Aug 22, 1978
- Siemens Aktiengesellschaft
- Wolfgang Keller
- C30 - CRYSTAL GROWTH

Wolfgang Keller

Person

Patents Grantslast 30 patents

Floating zone drawing circuitry for semiconductor rods

Induction heater for floating zone melting

Apparatus for doping semiconductor rods with solid dopants

Apparatus for crucible-free floating-zone melting a semiconductor r...

Induction coil in the form of a pancake coil for crucible-free zone...

Induction coil in the form of a flat coil for crucible-free floatin...

Method of setting a stable melting zone in a semiconductor crystall...

Method and apparatus for the manufacture of silicon by crucible-fre...

Current lead-in of the coaxial type for sealing to a container wall

Method of producing current lead-ins having coaxial construction

Process for producing phosophorous-doped silicon monocrystals havin...

Process for producing plate-shaped silicon bodies for solar cells