Explanation: In IC transistor, the collector contact has to be taken from the top because collector is isolated from the substrate and next isolation island by reverse biased diodes. 2. Why monolithic IC transistor is preferred over discrete planar epitaxial transistor?
A. Due to structural difference
B. Increase in VCE (sat) and collector series resistor
C. Improvement in circuit performance
D. All of the mentioned
Answer:A
Explanation: In IC transistor, the collector contact has to be taken from the top because collector is isolated from the substrate and next isolation island by reverse biased diodes. 2. Why monolithic IC transistor is preferred over discrete planar epitaxial transistor?
A. Due to structural difference B. Increase in VCE (sat) and collector series resistor C. Improvement in circuit performance D. All of the mentioned
Explanation: As the collector contact is present on the top of IC transistor, it makes structural difference. Hence, it increases collector series resistance and VCE(sat) of device. From this, circuit performance is highly improved as matched transistor can be obtained. 3. Name the process that is used to overcome the increase in collector series resistance, which occurs due to the presence of collector contact at the top of integrated transistor.