Journal ArticleDOI
A unified simulation of Schottky and ohmic contacts
Abstract:
The Schottky contact is an important consideration in the development of semiconductor devices. This paper shows that a practical Schottky contact model is available for a unified device simulation of Schottky and ohmic contacts. The present model includes the thermionic emission at the metal/semiconductor interface and the spatially distributed tunneling calculated at each semiconductor around the interface. Simulation results of rectifying characteristics of Schottky barrier diodes (SBD's) and resistances under high impurity concentration conditions are reasonable, compared with measurements. As examples of application to actual devices, the influence of the contact resistance on salicided MOSFETs with source/drain extension and the immunity of Schottky barrier tunnel transistors (SBTTs) from the short-channel effect (SCE) are demonstrated.read more
Citations
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Patent
Insulated gate field effect transistor having passivated schottky barriers to the channel
Daniel E. Grupp,Daniel Connelly +1 more
TL;DR: In this paper, the Fermi level of the semiconductor channel is depinned in a region near the junction and the junction has a specific contact resistance of less than approximately 1000 Ω-μm 2.
Patent
Semiconductor device having IGBT and diode
TL;DR: In this paper, the authors describe a semiconductor device consisting of a substrate having a first side and a second side; an IGBT; and a diode, and the substrate includes a first layer, a second layer and a third layer.
Journal ArticleDOI
Asymmetric Schottky Tunneling Source SOI MOSFET Design for Mixed-Mode Applications
TL;DR: An asymmetric Schottky tunneling source SOI MOSFET (STS-FET) was proposed in this article, which has the source/drain regions replaced with silicide as opposed to highly doped silicon in conventional devices.
Patent
Method for depinning the fermi level of a semiconductor at an electrical junction and devices incorporating such junctions
Daniel E. Grupp,Daniel Connelly +1 more
TL;DR: In this article, an electrical device in which an interface layer is disposed in between and in contact with a conductor and a semiconductor is described. But the interface layer does not have an interface mechanism.
Journal ArticleDOI
Comparison study of tunneling models for Schottky field effect transistors and the effect of Schottky barrier lowering
TL;DR: In this paper, an Airy function transfer matrix tunneling model and the Wentzel-Kramers-Brillouin (WKB) model have been compared in the application to Schottky field effect transistors (SFETs) with and without the incorporation of SBL.
References
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Journal ArticleDOI
Measurement of the ionization rates in diffused silicon p-n junctions
R. van Overstraeten,H. de Man +1 more
TL;DR: In this paper, an improved method is presented for calculating the ionization rates αn and αp from charge multiplication measurements on diffused silicon p-n junctions, where the real impurity profile is approximated by an exponential function whose parameters are calculated from capacitance measurements; the ratio αp/αn as a function of the electric field is calculated from multiplication measurements.
Journal ArticleDOI
Current transport in metal-semiconductor barriers
C.R. Crowell,S.M. Sze +1 more
TL;DR: In this paper, a theory for calculating the magnitude of majority carrier current flow in metal-semiconductor barriers is developed which incorporates Schottky's diffusion (D) theory and Bethe's thermionic emission (T) theory into a single T-D emission theory, and which includes the effects of the image force.
Journal ArticleDOI
Reverse current-voltage characteristics of metal-silicide Schottky diodes
J.M. Andrews,M.P. Lepselter +1 more
TL;DR: In this paper, the soft behavior of reverse biased Schottky barrier diodes has often been difficult to interpret quantitatively, and the development of metal-silicide devices with diffused guard rings has made it possible to verify experimentally an advanced theoretical model.
Journal ArticleDOI
Silicon field-effect transistor based on quantum tunneling
TL;DR: In this article, gate-induced tunneling through a Schottky barrier located at the interface between a metallic source electrode and the Si channel was explored to forestall short-channel effects.
Journal ArticleDOI
Two-dimensional numerical simulation of Schottky barrier MOSFET with channel length to 10 nm
TL;DR: In this article, the authors present simulation results of a silicon-based metal-oxide-semiconductor field effect transistor (MOSFET) with metal/silicon Schottky junctions.
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