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--- capacitor [2012/06/30 15:32]
mcmaster
+++ capacitor [2013/10/20 10:59] (current)
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-Capacitors are essentially very large gates.  Say for example that one wants a capacitor to ground.  In a metal gate CMOS process this can be done by simply creating a well and putting a large M1 over the well.  For example, if one wants a capacitor to ground, you could create a large P well and then put metal on top.  The P well is connected to ground and M1 to the desired connection.  Example metal gate CMOS capacitor:
+Capacitors are essentially very large gates.  Say for example that one wants a capacitor to ground.  In a metal gate CMOS process this can be done by simply creating a well and putting a large M1 over the well.  For example, if one wants a capacitor to ground, you could create a large P well and then put metal on top.  The P well is connected to ground and M1 to the desired connection.  Example metal gate CMOS capacitor (ST 24C02):
 {{:mcmaster:capacitor:metal_gate_st_24c02_hf2.jpg?300|}}