Explanation: There is no p-type epitaxial layer present in junction capacitor. But a p-type substrate is present and it forms one of the junctions in the junction type IC capacitor. 8. Which is used as the dielectric layer in MOS Capacitor?
A. Silicon Nitride (Si3N4)
B. Aluminium oxide (Al2O3)
C. Tantalum oxide (Ta2O5)
D. All of the mentioned
Answer:A
Explanation: There is no p-type epitaxial layer present in junction capacitor. But a p-type substrate is present and it forms one of the junctions in the junction type IC capacitor. 8. Which is used as the dielectric layer in MOS Capacitor?
A. Silicon Nitride (Si3N4) B. Aluminium oxide (Al2O3) C. Tantalum oxide (Ta2O5) D. All of the mentioned
Explanation: Si3N4 offers higher value of capacitance. Whereas , Al2O3 and Ta2O5 are preferred for large value of capacitance. Hence all of them are used as dielectric layer. 9. Which is considered to be a serious disadvantages of thin film capacitor, when Al2O3is used as dielectric.