Constant Voltage Clamp
Original Publication Date: 1979-Nov-01
Included in the Prior Art Database: 2005-Feb-20
A voltage clamp circuit is expected to keep its clamp voltage nearly constant, independently of the magnitude of the current applied, the line lengths, and the feeding point. To meet these requirements, the voltage clamp lines must be rather wide, so that the line resistances between feeding points, which are frequently very far apart from each other, become negligible. As in present semiconductor technologies, the peripheral circuits of array chips, for example, are no longer silicon limited, but are rather metal-limited, each increase or decrease of the line width linearly affected the chip size.