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Process for removing nonmetallic impurities from metallurgical silicon |
Seyed-Javad Mohsseni-Ala, Christian Bauch, Rumen Deltschew, Thoralf Gebel, Gerd Lippold +2 more |
2016-05-03 |
| 8968467 |
Method and system for controlling resistivity in ingots made of compensated feedstock silicon |
Marcin Walerysiak, Matthias Heuer, Anis Jouini, Kamel Ounadjela |
2015-03-03 |
| 8882912 |
Method and system for forming a silicon ingot using a low-grade silicon feedstock |
Vera Abrosimova, Matthias Heuer, Dieter Linke, Jean Patrice Rakotoniana, Kamel Ounadjela |
2014-11-11 |
| 8758507 |
Germanium enriched silicon material for making solar cells |
Matthias Heuer, Martin Kaes, Kamel Ounadjela |
2014-06-24 |
| 8547121 |
Quality control process for UMG-SI feedstock |
Kamel Ounadjela, Marcin Walerysiak, Anis Jouini, Matthias Heuer, Omar Sidelkheir +1 more |
2013-10-01 |
| 8404970 |
Bifacial solar cells with back surface doping |
Martin Kaes, Peter G. Borden, Kamel Ounadjela, Andreas Kraenzl, Alain Blosse |
2013-03-26 |
| 8316745 |
Semiconductor wafer pre-process annealing and gettering method and system for solar cell formation |
Kamel Ounadjela, Jean Patrice Rakotoniaina, Dieter Linke |
2012-11-27 |
| 8298850 |
Bifacial solar cells with overlaid back grid surface |
Martin Kaes, Peter G. Borden, Kamel Ounadjela, Andreas Kraenzl, Alain Blosse |
2012-10-30 |
| 8008107 |
Semiconductor wafer pre-process annealing and gettering method and system for solar cell formation |
Kamel Ounadjela, Jean Patrice Rakotoniana, Dieter Linke |
2011-08-30 |
| 7955433 |
Method and system for forming a silicon ingot using a low-grade silicon feedstock |
Vera Abrosimova, Matthias Heuer, Dieter Linke, Jean Patrice Rakotoniana, Kamel Ounadjela |
2011-06-07 |
| 7887633 |
Germanium-enriched silicon material for making solar cells |
Vera Abrosimova, Matthias Heuer, Anis Jouini, Dieter Linke, Martin Kaes +2 more |
2011-02-15 |
| 7651566 |
Method and system for controlling resistivity in ingots made of compensated feedstock silicon |
Vera Abrosimova, Matthias Heuer, Dieter Linke, Jean Patrice Rakotoniana, Kamel Ounadjela |
2010-01-26 |
| 7521954 |
Method for determining a minority carrier diffusion length using surface photo voltage measurements |
Benno Orschel, Andrzej Buczkowski |
2009-04-21 |
| 6648967 |
Crystal-pulling apparatus for pulling and growing a monocrystalline silicon ingot, and method therefor |
Volker Todt, Rocky Oakley, Peter Wildes, Haresh Siriwardane, Joel Kearns |
2003-11-18 |
| 6491752 |
Enhanced n-type silicon material for epitaxial wafer substrate and method of making same |
Peter Wildes, Volker Todt, Nobuo Fukuto, Boris A. Snegirev, Seung-Bae Kim |
2002-12-10 |