Chapter 7 . High - Frequency InAIAs / InGaAs Metal - Insulator - Doped Semiconductor Field - Effect Transistors ( MIDFETs ) for Telecommunications

نویسنده

  • A. del Alamo
چکیده

MetalInsulatorDoped semiconductor FieldEffect Transistors (MIDFETs) in which the InGaAs channel is heavily doped but the InAIAs insulator is undoped were pioneered by del Alamo and Mizutani at NTT Laboratories.1 These devices have been found to display a performance comparable to InAIAs/InGaAs ModulationDoped FETs (MODFETs) of similar gate length. They additionally offer unique benefits not found in other device structures: reduced gm and fT collapse, higher breakdown voltage, and enhanced freedom for optimization of gate insulator parameters.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Chapter 2 . High - Frequency InAIAs / InGaAs Metal - Insulator - Doped Semiconductor Field - Effect Transistors ( MIDFETs ) for Telecommunications

InAlAs/InGaAs Modulation-Doped Field-Effect Transistors (MODFETs) on InP have recently emerged as an optimum choice for a variety of microwave and photonics applications. This is because the outstanding transport properties of InGaAs have yielded devices with very low-noise and high-frequency characteristics. Unfortunately, the low breakdown voltage of InAlAs/InGaAs MODFETs on InP (typically le...

متن کامل

Chapter 2 . Physics of InAIAs / InGaAs Heterostructure Field - Effect Transistors

The goal of this project is to develop InAIAs/InGaAs heterostructure field-effect transistors suitable for millimeter-wave high-power applications. The suitability of this material system for low-noise amplification is now unquestionable. Obtaining a high breakdown voltage is, however, still rather difficult, and it usually comes with severe trade offs. This fact seriously limits the suitabilit...

متن کامل

InGaP/InGaAs Doped-Channel Direct-Coupled Field-Effect Transistors Logic with Low Supply Voltage

InGaP/InGaAs doped-channel direct-coupled field-effect transistor logic (DCFL) with relatively low supple voltage is demonstrated by two-dimensional analysis. In the integrated enhancement/depletion-mode transistors, subband and two-dimensional electron gas (2DEG) are formed in the InGaAs strain channels, which substantially increase the channel concentration and decrease the drain-to-source sa...

متن کامل

High-frequency compact analytical noise model for double-gate metal-oxide-semiconductor field-effect transistor

Silicon-on-insulator SOI metal-oxide-semiconductor field-effect transistors MOSFETs are excellent candidates to become an alternative to conventional bulk technologies. The most promising SOI devices for the nanoscale range are based on multiple gate structures such as double-gate DG MOSFETs. These devices could be used for high-frequency applications due to the significant increase in the tran...

متن کامل

Mesa - Sidewall Gate Leakage in InAlAs / InGaAs Heterostructure Field - Effect Transistors

InAIAslInGaAs HFET’s fabricated by conventional mesa isolation have a potential parasitic gate-leakage path where the gate metallization overlaps the exposed channel edge at the mesa sidewall. We have unmistakably proven the existence of this path by fabricating special heterojunction diodes with different mesa-sidewall gate-metal overlap lengths. We find that sidewall leakage is a function of ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2009