HEMT differs from BJT in following ways:
1. Unipolar device
2. Voltage Controlled device
3. Current is Controlled by Electric Field (FET)
4. 2 DEG is formed
5. High Mobility due to 2 DEG (Faster) etc
6. Source, Gate and Drain names for Emitter, Base, Collector
etc
M.A. Khan
In the case of Bipolar Junction Transistor current conduction is due to both holes and electrons. That's why noise is high in Bipolar Junction Transistor
Transistor is known as bipolar junction becoz it has 2 pole. Input is given to the 2 junction and output is taken from to junction
Yes, the are different names for the same thing.
amplifier, switch, oscillator, etc.
through the used of multi-tester
Unless it is some leet speak term I am not aware of, BJTstands for Bipolar Junction Transistor or (less common) Business Japanese Proficiency Test.
The BJT is the bipolar junction transistor, the PCT is the point contact transistor, the UJT is the uni-junction transistor, the SBT is the surface barrier transistor, the FET is the field effect transistor, the GJT is the grown-junction transistor, the AJT is the alloy-junction transistor, and the DFT is the drift field-junction transistor.
Ie=Ic+Ib
Bipolar junction transistor(BJT)
Yes people still use bipolar junction transistors today because of its high switching speed.
A circuit in which the input signal is applied to its base and the collector is earthed (grounded) is known as common collector configuration of BJT (BiPolar Junction Transistor)
BJT stands for bipolar junction transistor because it is composed of two types of semiconductors (P and N-type) rather than just one type like a unipolar transistor. This allows for both electron and hole current flow in the device, giving it its bipolar characteristic.