Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7025827 | Doped semiconductor wafer of float zone pulled semiconductor material, and process for producing the semiconductor wafer | Rolf Knobel, Janis Virbulis, Manfred Grundner | 2006-04-11 |
| 6887775 | Process and apparatus for epitaxially coating a semiconductor wafer and epitaxially coated semiconductor wafer | Ruediger Schmolke, Peter Storck, Wolfgang Siebert | 2005-05-03 |
| 6843848 | Semiconductor wafer made from silicon and method for producing the semiconductor wafer | Rudiger Schmolke, Erich Daub, Christoph Frey | 2005-01-18 |
| 6803331 | Process for the heat treatment of a silicon wafer, and silicon wafer produced | Robert A. Holzl, Christoph Seuring, Reinhold Wahlich | 2004-10-12 |
| 6395653 | Semiconductor wafer with crystal lattice defects, and process for producing this wafer | Günther Obermeier, Alfred Buchner, Theresia Bauer, Jürgen Hage, Rasso Ostermeir | 2002-05-28 |
| 6350314 | Process for producing nitrogen-doped semiconductor wafers | Herbert Weidner, Dirk Zemke, Christoph Frey | 2002-02-26 |
| 6238477 | Process and device for the production of a single crystal | Erich Tomzig, Janis Virbulis | 2001-05-29 |
| 6171395 | Process and heating device for melting semiconductor material | Erich Tomzig, Paul Fuchs | 2001-01-09 |
| 6153008 | Device and method for pulling a single crystal | Hans Olkrug, Erich Dornberger, Franz Segieth | 2000-11-28 |
| 6132507 | Process and device for the production of a single crystal | Erich Tomzig, Janis Virbulis | 2000-10-17 |
| 6059874 | Process and device for reducing the load on a seed crystal | — | 2000-05-09 |
| 6015460 | Method and apparatus for pulling a monocrystal | Erich Dornberger | 2000-01-18 |
| 6001170 | Process and apparatus for the growth of single crystals | Erich Tomzig, Werner Zulehner, Yu M Gelfgat, Leonid Gorbunov | 1999-12-14 |
| 5951753 | Method and device for producing monocrystals | Erich Dornberger, Hans Olkrug, Dieter Graf | 1999-09-14 |
| 5868831 | Process for controlling the growth of a crystal | Erich Dornberger, Hans Olkrug, Franz Wasmeier, Francois Dupret, Vincent Wertz +1 more | 1999-02-09 |
| 5759261 | Method for pulling a monocrystal | Erich Dornberger | 1998-06-02 |
| 5746825 | Method for determining the diameter of a growing monocrystal | Herbert Weidner, Ludwig Thanner | 1998-05-05 |
| 5567399 | Apparatus for producing a single crystal | Erich Dornberger, Herber Weidner, Alfred Pardubitzki | 1996-10-22 |
| 5487354 | Method for pulling a silicon single crystal | Erich Dornberger, Hans Oelkrug, Peter Gerlach, Franz Segieth | 1996-01-30 |
| 5089082 | Process and apparatus for producing silicon ingots having high oxygen content by crucible-free zone pulling, silicon ingots obtainable thereby and silicon wafers produced therefrom | Peter Dreier, Heinz Winterer | 1992-02-18 |
| 4749837 | Induction heating coil for the floating zone pulling of crystal rods | Heinz Klinger | 1988-06-07 |