CMOS interview questionsCMOS interview questions. Latch-up pertains to a failure mechanism wherein a parasitic thyristor such as a parasitic silicon controlled rectifier, or SCR is inadvertently created within a circuit, causing a high amount of current to continuously flow through it once it is accidentally triggered or turned on. Depending on the circuits involved, the amount of current flow produced by this mechanism can be large enough to result in permanent destruction of the device due to electrical overstress EOS. Additionally, the gate-leakage in NAND structures is much lower. Explain the procedure to determine Noise Margin The minimum amount of noise that can be allowed on the input stage for which the output will not be effected. In order to drive the desired load capacitance we have to increase the size width of the inverters to get an optimized performance.
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This connection pdc established and the transistors function properly without the need of any ground bounce occurring in any cell. If the signal changes during this interval, the output of that flip-flop cannot be predictable called metastable. I was always a top brass performer at my previous job and I did extremely well at school. CMOS technology provides scalable threshold voltage more in comparison to the Bipolar technology that provides low threshold voltage.When these holes are pushed down the substrate they leave behind a carrier-depletion region! What are the cells available in primitive library. Low output drive current. What do they signify.
The layout depends on the size of the transistor. Global skew : The difference between the earliest reaching flip-flop and latest reaching flip-flop for a same clock-domain? Encounter What are the other alternative software apart from cadence used for VLSI design.
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We are listed in the Hardware Directory. To restore the qusetions depth to its normal depth the VGS has to be increased! Careful control during fabrication is necessary to anx this problem. Explain with neat diagrams the various CMOS fabrication a. In this the clock works as a filter providing the small reset glitches but the glitches occur on the active clock edge, whereas the asynchronous reset is also known as reset release or reset removal.
Question 1. Question 2. Give The Advantages Of Ic? Question 3. Question 4. Question 5. Question 6.
When the channel is said to be pinched off. What are the special features of Twin-tub process. Epitaxy means arranging atoms in single crystal fashion upon a single crystal substrate.
Answer : The total number of nodes that, is called the percentage-fault cove! Chain reordering allows the cell to be come in the ordered format while using the different clock domains. Logic synthesisSystem partitioning Fault model is a model for how faults occur and their impact on c. The saturation region is used to operate as amplifier.