Arguably the most significant invention of the 20th century is the MOSFET. (Metal Oxide Silicon Field Effect Transistor). There are two types of transistors - The BJT (Bipolar Junction Transistor) & the FET (Field Effect Transistor) MOSFETs are a type of FET. The invention of the BJT itself, 10 years before the MOSFET was the start of the modern electronics era.
MOSFETs can be selected either in depletion or enhancement modes. The depletion mode operates in a similar way to the closed switch, with current flowing when the on voltage is applied. If a negative voltage is applied, then the current will stop. On the flip side, enhancement mode MOSFETs are the most commonly used type for modern-day applications.
MOSFETs are everywhere. From CMOS circuits, Analog Switches, Power Electronics, Memories, Sensors & in Quantum Physics. ( The quantum field-effect transistor (QFET) and quantum-well field effect transistor (QWFET) are both types of MOSFET which make use of quantum tunnelling to increase the speed of transistor operation).
The TFT is a unique type of MOSFET. There are MOS sensors from open-gate FET (OGFET), ion-sensitive field-effect transistor (ISFET), gas sensor FET, charge flow transistor (CFT), and enzyme-modified FET. Commonly used sensors used for digital imaging include the couple-charged device (CCD) and active-pixel sensor (CMOS sensor).
Here's a recent video for anyone interested...
MOSFETs can be selected either in depletion or enhancement modes. The depletion mode operates in a similar way to the closed switch, with current flowing when the on voltage is applied. If a negative voltage is applied, then the current will stop. On the flip side, enhancement mode MOSFETs are the most commonly used type for modern-day applications.
MOSFETs are everywhere. From CMOS circuits, Analog Switches, Power Electronics, Memories, Sensors & in Quantum Physics. ( The quantum field-effect transistor (QFET) and quantum-well field effect transistor (QWFET) are both types of MOSFET which make use of quantum tunnelling to increase the speed of transistor operation).
The TFT is a unique type of MOSFET. There are MOS sensors from open-gate FET (OGFET), ion-sensitive field-effect transistor (ISFET), gas sensor FET, charge flow transistor (CFT), and enzyme-modified FET. Commonly used sensors used for digital imaging include the couple-charged device (CCD) and active-pixel sensor (CMOS sensor).
Here's a recent video for anyone interested...
