Question

Near-avalanche breakdown in MOSFET
is an ultimate outcome of
(1) First order effects
(2) Second order effects
(3) Third order effects
(4) None of the above
​

Answer 1

Near-avalanche breakdown in MOSFET  is the ultimate outcome of second- order effects.

Option (2) is correct.

Explanation:

• Due to second-order effects in MOSFET, a new phenomenon is generated called 'Near-avalanche breakdown'.
• When the voltage is drained to the maximum extent, then there are chances of a reduction in the size of MOSFET.
• Another action known as parasitic BJY can also occur due to increased voltage.
• Increased supply of current can damage the SiO2 layer which results in breakdown and ultimately causes failure of the device.