Factors determining forward voltage drop and forward blocking in the field terminated diode (FTD)
1977 International Electron Devices Meeting, 1977Using exact numercial solutions of the full set of semiconductor device equations the field terminated diode (FTD) structure is investigated. It is shown that the grid structure reduces current flow by causing the electron current to funnel around the grid and at the same time diverting hole current through the grid.
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In this paper, a 4H-SiC trench MOS barrier Schottky (TMBS) rectifier with an enhanced sidewall layer (ESL) is proposed. The proposed structure has a high doping concentration at the trench sidewall. This high doping concentration improves both the reverse blocking and forward characteristics of the structure.
Doohyung Cho +5 more
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High current characteristics of asymmetrical p-i-n diodes having low forward voltage drops
IEEE Transactions on Electron Devices, 1976A closed form solution for the forward characteristics of a very asymmetrical step-junction p-i-n diode at high current levels is derived and discussed. It is found that the forward voltage decreases significantly when the amount of the impurities per unit area of one of the highly doped regions is reduced.
M. Naito, H. Matsuzaki, T. Ogawa
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Correlation between Carrier Recombination Lifetime and Forward Voltage Drop in 4H-SiC PiN Diodes
Materials Science Forum, 2010Correlation between carrier lifetime and forward voltage drop in 4H-SiC PiN diodes has been investigated. PiN diodes from the drift layer of 20 m shows breakdown voltage of 3.3 kV and forward voltage drop as low as 3.13 V at 100A/cm2. Variation of calculated forward voltage drop ( ) from measured carrier lifetimes is very comparable to measured of ...
Gil Yong Chung +3 more
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Factors determining forward voltage drop in the field-terminated diode (FTD)
IEEE Transactions on Electron Devices, 1978Recently, there has been a revival of interest in a device first introduced in the early sixties and called the "gridistor" and currently referred to as the "FTD." The FTD offers the promise of low forward drop of the SCR together with the higher switching speeds and freedom from dV/dt and di/dt problems of the transistor.
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Experimental Demonstration of 1200V SiC-SBDs with Lower Forward Voltage Drop at High Temperature
Materials Science Forum, 2012The 1200V class silicon carbide Schottky barrier diodes were designed and fabricated. The drift layer resistance was reduced in order to realize low forward voltage drops. Since the low drift layer resistance led to the low breakdown voltage, the avalanche withstanding capability should be enhanced not to cause the destructive breakdown.
Takashi Tsuji +6 more
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Forward voltage drop across a PN junction diode at high current densities †
International Journal of Electronics, 1971Abstract To calculate the forward voltage drop across a PN junction diode at high current densities, it is necessary to either solve a system of non-linear differential equations by numerical methods for specific cases or to approximate the electric field in the bulk to obtain closed form solutions.
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Effect of aspect ratio on forward voltage drop in trench insulated gate bipolar transistor
Solid-State Electronics, 2005An analytical model for the carrier density at the accumulation layer of TIGBT (Trench Insulated Gate Transistor) is presented in terms of the aspect ratio with the influence of the depth of the trench gate below the P base taken into account. Based on the model, analytic expressions for the potential drop on the drift region are derived using a linear
Jin-Woo Moon +2 more
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A brief analysis of the transient forward voltage drop in fast diodes
IEE Proceedings I Solid State and Electron Devices, 1985The transient forward voltage drop of fast diodes for medium power circuits is investigated using a computer model. Fast diodes, of both pn and PIN structures, are experimentally examined for a range of electrical and physical parameters. A multiple curvilinear statistical regression was used on the results and an empirical relationship is presented.
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EXPERIMENTAL DEMONSTRATION OF 1200V SiC-SBDs WITH LOWER FORWARD VOLTAGE DROP AT HIGH TEMPERATURE
SAE Technical Paper Series, 2011<div class="section abstract"><div class="htmlview paragraph">The 1200V class silicon carbide Schottky barrier diodes were designed and fabricated. The drift layer resistance was reduced in order to realize low forward voltage drops. Since the low drift layer resistance led to the low breakdown voltage, the avalanche withstanding capability
Takashi Tsuji +4 more
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