Nwell layer ESD protection question. Please help! ESD protection: Nwell layers a

Question

Nwell layer ESD protection question. Please help!

ESD protection: Nwell layers are commonly used to make one of the two diodes (D_1 and D_2) needed for an electrostatic discharge protection circuit, shown below. These circuits are often included as part of the pads used to make connections to an integrated circuit chip, and they perform the important role of shunting the high voltage signals associated with static discharge before they can damage the sensitive devices internal to the chip. a. Which of these diodes can be implemented using nwell? b. If you are forced to use nwell for making only one of these ESD diodes, which would you choose? What layers would you use to construct each of the diodes and which terminals of the device would be connected to Bonding circuit each layer? Why? Sketch the cross sectional structure for each of L these diodes, showing which layers are used and where the depletion regions can be found.

Explanation / Answer

Here looking at the introduction, we can say that only one diode can be used to serve the purpose described in the introduction.. that is diode D2.,. As it is connected to grounding path, it can be used to discharge the static charge as well used for protection electrostatic discharge...

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