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To make p-n junctions reverse biased, with respect to isolation region the p-type substrate must also be held at---?Question 3Answera.negative potentialb.Unityc.positive potential

Question

To make p-n junctions reverse biased, with respect to isolation region the p-type substrate must also be held at---?Question 3Answera.negative potentialb.Unityc.positive potential

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Solution

To make p-n junctions reverse biased, with respect to the isolation region, the p-type substrate must also be held at a positive potential. This is because in a p-n junction, the p-type (positive) material has an abundance of holes, while the n-type (negative) material has an abundance of electrons.

In a reverse bias configuration, the positive terminal of the voltage source is connected to the n-type material and the negative terminal is connected to the p-type material. This increases the potential barrier and makes it difficult for current to flow.

Therefore, to make the p-n junction reverse biased, the p-type substrate must be held at a positive potential with respect to the isolation region.

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