slide1 n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Objectives Evaluate effects of underlap (L d ) Evaluate effects of boundary condition Methods PowerPoint Presentation
Download Presentation
Objectives Evaluate effects of underlap (L d ) Evaluate effects of boundary condition Methods

Loading in 2 Seconds...

play fullscreen
1 / 1

Objectives Evaluate effects of underlap (L d ) Evaluate effects of boundary condition Methods - PowerPoint PPT Presentation


  • 84 Views
  • Uploaded on

Effects of Underlap and Boundary Condition Zhengping Jiang, Yeqing Lu, Yaohua Tan, Yu He, Michael Povoloskyi , Tillmann Kubis, Alan Seabaugh , Patrick Fay, Gerhard Klimeck. Objectives Evaluate effects of underlap (L d ) Evaluate effects of boundary condition Methods

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Objectives Evaluate effects of underlap (L d ) Evaluate effects of boundary condition Methods' - trent


Download Now An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1

Effects of Underlap and Boundary ConditionZhengping Jiang, Yeqing Lu, Yaohua Tan, Yu He, Michael Povoloskyi, Tillmann Kubis, Alan Seabaugh, Patrick Fay, Gerhard Klimeck

Objectives

  • Evaluate effects of underlap (Ld)
  • Evaluate effects of boundary condition

Methods

  • Semi-classical potential with corrected parameters
  • Non-equilibrium Green’s Function

Results

  • Ambipolar current is due to hole thermal emission
  • Confinement increases bandgap and reduces ambipolar current
  • Low IOFF at Ld=0nm → boundary condition blocks tunneling

Impacts

  • Underlap decouples channel from drain contact and suppresses ambipolar current
  • Define proper open boundary condition is important to predict device performance

Simulation Structure

Spectrum currents show effects of open BC

Upper: tunneling current is blocked due to raised potential at boundary and thermal current is increased

Lower: thermal current is blocked by bandgap

*IEEE ELECTRON DEVICE LETTERS, VOL. 33, NO. 5, MAY 2012