lecture9

lecture9 - MOS Field-Effect transistors(MOSFETs MOSFETS...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
MOS Field-Effect transistors (MOSFETs) MOSFETS BJTs are three terminal devices, they are more useful than two terminal devices, and they could be used in: Amplification, Logic circuits and Memories The MOSFET has become the most widely used electronic device. They can be made smaller, more power efficient, simple to manufacture and with unique circuit applications like logic gates that use them exclusively. DEVICE STRUCTURE AND PHYSICAL OPERATION n-Channel Enhancement Type MOSFET The name of the device comes from the structure, metal, oxide semiconductor. The thickness of the silicon dioxide (insulator) is named ox t (2-50 nm). Metal contacts are formed on top of the Drain, Gate, Source and Body. Nowadays some times the gate contact is made of a special kind of silicon; however the name of the transistor remains as MOSFET. They are also referred ad IGFETs or insulated gate FETs. The body forms a pn junction with the Drain and Source, in normal operation these junctions are kept reversed biased
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 3

lecture9 - MOS Field-Effect transistors(MOSFETs MOSFETS...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online