ONE TIME PROGRAMMABLE NON-VOLATILE MEMORY
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United States of America Patent
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Issued Date -
Apr 14, 2016
app pub date -
Sep 2, 2015
filing date -
Oct 14, 2014
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Abstract
A one time programmable (OTP) non-volatile memory including a substrate, a switch device and a fuse structure is provided. The switch device is disposed on the substrate. The fuse structure includes a conductive layer, a spacer and a plug. The conductive layer is coupled to a terminal of the switch device. The spacer is disposed on a sidewall of the conductive layer. The plug is disposed on the conductive layer and covers the spacer. An overlap area of an overlap portion between the plug and a top surface of the conductive layer is smaller than a top view area of the plug.
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