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FREIBERGER COMPOUND MAT GMBH
DE28 patents
Top patents by PatentIndex Score
US7727332B2Jun 1, 2010
Process for selective masking of III-N layers and for the preparation of free-standing III-N layers or of devices, and products obtained thereby
FREIBERGER COMPOUND MAT GMBH267 citations96
US7556688B2Jul 7, 2009
Method for achieving low defect density AlGaN single crystal boules
FREIBERGER COMPOUND MAT GMBH15 citations83
US6355910B1Mar 12, 2002
Heating element for heating crucibles and arrangement of heating elements
FREIBERGER COMPOUND MAT GMBH18 citations81
US6923171B2Aug 2, 2005
Device and method for determining the orientation of a crystallographic plane in relation to a crystal surface and device for cutting a single crystal in a cutting machine
FREIBERGER COMPOUND MAT GMBH13 citations79
US9368585B2Jun 14, 2016
Arrangement and method for manufacturing a crystal from a melt of a raw material and single crystal
FREIBERGER COMPOUND MAT GMBH8 citations77
US7137865B2Nov 21, 2006
Method and device for cutting single crystals, in addition to an adjusting device and a test method for determining a crystal orientation
FREIBERGER COMPOUND MAT GMBH12 citations77
US10309037B2Jun 4, 2019
Method for producing III-N templates and the reprocessing thereof and III-N template
FREIBERGER COMPOUND MAT GMBH1 citations70
US7410540B2Aug 12, 2008
Process for the manufacture of doped semiconductor single crystals, and III-V semiconductor single crystal
FREIBERGER COMPOUND MAT GMBH8 citations70
US9461121B2Oct 4, 2016
Process for the manufacture of a doped III-N bulk crystal and a free-standing III-N substrate, and doped III-N bulk crystal and free-standing III-N substrate as such
FREIBERGER COMPOUND MAT GMBH4 citations69
US11170989B2Nov 9, 2021
Gallium arsenide substrate comprising a surface oxide layer with improved surface homogeneity
FREIBERGER COMPOUND MAT GMBH2 citations67
US10460924B2Oct 29, 2019
Process for producing a gallium arsenide substrate which includes marangoni drying
FREIBERGER COMPOUND MAT GMBH4 citations67
US8048224B2Nov 1, 2011
Process for producing a III-N bulk crystal and a free-standing III-N substrate, and III-N bulk crystal and free-standing III-N substrate
FREIBERGER COMPOUND MAT GMBH3 citations61
US7998273B2Aug 16, 2011
Method for producing III-N layers, and III-N layers or III-N substrates, and devices based thereon
FREIBERGER COMPOUND MAT GMBH2 citations61
US12168839B2Dec 17, 2024
Growth of A-B crystals without crystal lattice curvature
FREIBERGER COMPOUND MAT GMBH0 citations60
US10883191B2Jan 5, 2021
Method for producing III-N templates and the reprocessing thereof and III-N template
FREIBERGER COMPOUND MAT GMBH0 citations60
US8025729B2Sep 27, 2011
Device and process for heating III-V wafers, and annealed III-V semiconductor single crystal wafer
FREIBERGER COMPOUND MAT GMBH5 citations59
US6358315B1Mar 19, 2002
Method and apparatus for producing monocrystals
FREIBERGER COMPOUND MAT GMBH2 citations58
US12205815B2Jan 21, 2025
Gallium arsenide substrate comprising a surface oxide layer with improved surface homogeneity
FREIBERGER COMPOUND MAT GMBH0 citations56
US11505847B2Nov 22, 2022
Method and apparatus for Ga-recovery
FREIBERGER COMPOUND MAT GMBH0 citations56
US7195542B2Mar 27, 2007
Process, apparatus and slurry for wire sawing
FREIBERGER COMPOUND MAT GMBH5 citations55
US7585772B2Sep 8, 2009
Process for smoothening III-N substrates
FREIBERGER COMPOUND MAT GMBH2 citations54
US8372199B2Feb 12, 2013
Bulk GaN and AlGaN single crystals
FREIBERGER COMPOUND MAT GMBH0 citations51
US10662549B2May 26, 2020
Growth of A-B crystals without crystal lattice curvature
FREIBERGER COMPOUND MAT GMBH0 citations50
US8815392B2Aug 26, 2014
Process for producing doped gallium arsenide substrate wafers having low optical absorption coefficient
FREIBERGER COMPOUND MAT GMBH0 citations45
US11965266B2Apr 23, 2024
Device and method of manufacturing AIII-BV-crystals and substrate wafers manufactured thereof free of residual stress and dislocations
FREIBERGER COMPOUND MAT GMBH0 citations44
US10584427B2Mar 10, 2020
Processes for producing III-N single crystals, and III-N single crystal
FREIBERGER COMPOUND MAT GMBH0 citations44
US9896779B2Feb 20, 2018
Method for producing III-N single crystals, and III-N single crystal
FREIBERGER COMPOUND MAT GMBH0 citations44
US10767255B2Sep 8, 2020
Device and method of evaporating a material from a metal melt
FREIBERGER COMPOUND MAT GMBH0 citations27