A 4Kx8 Innovative Fuse OTP on 22-nm FD-SOI

A 4Kx8 innovative fuse (I-fuse)
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one-time programmable (OTP) based on a 1R1T metal-gate fuse with a strictly electromigration program mode has a 0.744 μm
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cell and 111 μm × 411 μm macro on 22-nm FD-SOI. This macro can be programmed at 1.0-1.45 V with <;1.4 mA and read at 0.42 V at 1 MHz and has high data security and full testability. The I-fuse is based on a revolutionary concept by programming below thermal runaway and above the electromigration threshold to achieve the best figures of merit in all OTP categories.