P-type one time programmable (OTP) device and manufacturing method thereof
A manufacturing method and device technology, applied in semiconductor/solid-state device manufacturing, electric solid-state devices, semiconductor devices, etc., can solve the problem of consuming OTP peripheral circuit area, etc.
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[0017] Such as figure 1 Shown is a schematic structural diagram of a P-type OTP device of the present invention, a one-time programmable device formed by connecting a PMOS transistor 11 and a PMOS transistor 12 in series. Wherein the first PMOS transistor 11 is used as a gate transistor, and the source electrode 191 and the drain electrode 192 of the first PMOS transistor 11 are formed in the N-type well 15 with a P-type diffusion region, and its gate 13 is used as the gate of the entire device. line, the source 191 serves as the source of the entire device. The second PMOS transistor 12 is used as the storage unit of the device, and its gate 16 is floating, and the source electrode 192 and the drain electrode 193 of the second PMOS transistor 12 are formed in the N-type well 15 with a P-type diffusion region, so The drain 193 serves as the bit line for the entire device. The source of the second PMOS transistor 12 shares a P diffusion region 192 with the drain of the first ...
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