Inventor
FRANCIS RICHARD
US34 patents
⚠️ This page may combine multiple inventors who share the name “FRANCIS RICHARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
INT RECTIFIER CORP
21 patentsUS6482681B1Nov 19, 2002
Hydrogen implant for buffer zone of punch-through non epi IGBT
INT RECTIFIER CORP133 citations99
US6919248B2Jul 19, 2005
Angled implant for shorter trench emitter
INT RECTIFIER CORP21 citations92
US6707111B2Mar 16, 2004
Hydrogen implant for buffer zone of punch-through non EPI IGBT
INT RECTIFIER CORP32 citations92
US6426248B2Jul 30, 2002
Process for forming power MOSFET device in float zone, non-epitaxial silicon
INT RECTIFIER CORP32 citations92
US7485920B2Feb 3, 2009
Process to create buried heavy metal at selected depth
INT RECTIFIER CORP19 citations84
US6683331B2Jan 27, 2004
Trench IGBT
INT RECTIFIER CORP18 citations84
US6627961B1Sep 30, 2003
Hybrid IGBT and MOSFET for zero current at zero voltage
INT RECTIFIER CORP18 citations84
US6603153B2Aug 5, 2003
Fast recovery diode and method for its manufacture
INT RECTIFIER CORP15 citations84
US6465353B1Oct 15, 2002
Process of thinning and blunting semiconductor wafer edge and resulting wafer
INT RECTIFIER CORP5 citations74
US6261874B1Jul 17, 2001
Fast recovery diode and method for its manufacture
INT RECTIFIER CORP13 citations74
US6242288B1Jun 5, 2001
Anneal-free process for forming weak collector
INT RECTIFIER CORP13 citations74
US6198115B1Mar 6, 2001
IGBT with reduced forward voltage drop and reduced switching loss
INT RECTIFIER CORP12 citations72
US6043112AMar 28, 2000
IGBT with reduced forward voltage drop and reduced switching loss
INT RECTIFIER CORP14 citations72
US6753580B1Jun 22, 2004
Diode with weak anode
INT RECTIFIER CORP8 citations68
US7956419B2Jun 7, 2011
Trench IGBT with depletion stop layer
INT RECTIFIER CORP4 citations63
US7534666B2May 19, 2009
High voltage non punch through IGBT for switch mode power supplies
INT RECTIFIER CORP5 citations63
US7335947B2Feb 26, 2008
Angled implant for shorter trench emitter
INT RECTIFIER CORP2 citations63
US6884303B2Apr 26, 2005
Process of thinning and blunting semiconductor wafer edge and resulting wafer
INT RECTIFIER CORP3 citations63
US6197649B1Mar 6, 2001
Process for manufacturing planar fast recovery diode using reduced number of masking steps
INT RECTIFIER CORP6 citations63
US7005702B1Feb 28, 2006
IGBT with amorphous silicon transparent collector
INT RECTIFIER CORP4 citations61
US7507608B2Mar 24, 2009
IGBT with amorphous silicon transparent collector
INT RECTIFIER CORP0 citations51
TWELVE INC
4 patentsUS10786352B2Sep 29, 2020
Prosthetic heart valve devices and associated systems and methods
TWELVE INC26 citations93
US10729541B2Aug 4, 2020
Prosthetic heart valve devices and associated systems and methods
TWELVE INC26 citations93
US11877926B2Jan 23, 2024
Prosthetic heart valve devices and associated systems and methods
TWELVE INC3 citations73
US12016772B2Jun 25, 2024
Prosthetic heart valve devices and associated systems and methods
TWELVE INC0 citations61