Patent ID: 6534833
Filing Date: 2003-03-18
Classification: H01L

Abstract:
A semiconductor device, comprising:at least one bond pad; a protection circuit electrically connected to the bond pad and operable to prevent damage to circuit connected to the bond pad during an electrostatic discharge event, the protection circuit comprising: a first MOSFET having a first gate electrode, a first source, a first drain and a first electrical conductive path between the first source and the first drain, wherein the first electrical conductive path is connected to the bond pad; a second MOSFET having a second gate electrode, a second source, a second drain, and a second electrical conductive path between the second source and the second drain wherein the second electrical conductive path is connected to the first electrical conductive path; and wherein the first gate electrode and the second gate electrode are commonly controlled by capacitive coupling in response to an electrostatic discharge event voltage at the bond pad.