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Inventor

KUMAGAI YUKIHIRO

JP15 patents
⚠️ This page may combine multiple inventors who share the name “KUMAGAI YUKIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

7 patents
US7109568B2Sep 19, 2006

Semiconductor device including n-channel fets and p-channel fets with improved drain current characteristics

HITACHI LTD30 citations92
US6534375B2Mar 18, 2003

Method of forming a capacitor in a semiconductor integrated circuit device using a metal silicon nitride layer to protect an underlying metal silicide layer from oxidation during subsequent processing steps

HITACHI LTD14 citations83
US7244643B2Jul 17, 2007

Semiconductor device and manufacturing method thereof

HITACHI LTD8 citations74
US6965140B2Nov 15, 2005

Semiconductor device including storage capacitor

HITACHI LTD5 citations74
US6639263B2Oct 28, 2003

Semiconductor device with copper wiring connected to storage capacitor

HITACHI LTD10 citations74
US6521932B1Feb 18, 2003

Semiconductor device with copper wiring connected to storage capacitor

HITACHI LTD12 citations74
US6720603B2Apr 13, 2004

Capacitor structure and a semiconductor device with a first metal layer, a second metal silicide layer formed over the first metal layer and a second metal layer formed over the second metal silicide layer

HITACHI LTD11 citations73

RENESAS TECH CORP

5 patents
US6982465B2Jan 3, 2006

Semiconductor device with CMOS-field-effect transistors having improved drain current characteristics

RENESAS TECH CORP121 citations98
US7205617B2Apr 17, 2007

Semiconductor device including active regions and gate electrodes for field effect transistors, with a trench formed between the active regions

RENESAS TECH CORP14 citations79
US6891761B2May 10, 2005

Semiconductor device and manufacturing method

RENESAS TECH CORP6 citations71
US7193270B2Mar 20, 2007

Semiconductor device with a vertical transistor

RENESAS TECH CORP6 citations62
US7196395B2Mar 27, 2007

Semiconductor device and manufacturing method

RENESAS TECH CORP3 citations60

RENESAS ELECTRONICS CORP

1 patent
US7906848B2Mar 15, 2011

Semiconductor device

RENESAS ELECTRONICS CORP8 citations84

TRECENTI TECHNOLOGIES INC

1 patent
US7009279B2Mar 7, 2006

Semiconductor device configured for suppressed germanium diffusion from a germanium-doped regions and a method for fabrication thereof

TRECENTI TECHNOLOGIES INC11 citations83

HITACHI POWER SEMICONDUCTOR DEVICE LTD

1 patent
US9076774B2Jul 7, 2015

Semiconductor device and a method of manufacturing same

HITACHI POWER SEMICONDUCTOR DEVICE LTD1 citations51