Patent ID: 6252293
Filing Date: 2001-06-26
Classification: G11C,H01L

Abstract:
An integrated circuit laser antifuse having first and second states, comprising:a first conductive plate;a second conductive plate, wherein the second conductive plate comprises an active area of an integrated circuit;a layer of dielectric material located between the first conductive plate and the second conductive plate; andat least two circuit connection regions extending into the second conductive plate and electrically connected to the second conductive plate, wherein the at least two circuit connection regions are physically separated from each other;wherein the first conductive plate and the at least circuit connection regions are electrically isolated in the first state, and wherein the first conductive plate and the at least two circuit connection regions are electrically connected in the second state upon electrically connecting the first conductive plate and the second conductive plate through the layer of dielectric material in response to a focused external radiation source.