ELECTROSTATIC DISCHARGE (ESD) PROTECTION DEVICE
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United States of America Patent
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Issued Date -
Mar 27, 2025
app pub date -
Sep 26, 2023
filing date -
Sep 26, 2023
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Abstract
An electrostatic discharge protection device includes a P-type substrate, an N-type well, a first P-type heavily-doped area, an N-type doped area, and a first N-type heavily-doped area. The N-type well is formed in the P-type substrate. The first P-type heavily-doped area is formed in the N-type well. The N-type doped area and the first N-type heavily-doped area are formed in the P-type substrate. The N-type doped area is coupled to the N-type well through an external conductive wire decoupled to the first P-type heavily-doped area. Alternatively, the P-type substrate and the N-type well are respectively replaced with an N-type substrate and a P-type well.
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