| 摘要 |
PROBLEM TO BE SOLVED: To provide an interface protection device with an integrated supply clamp and a method of forming the same.SOLUTION: In certain implementation, an integrated circuit interface protection device comprises: a first diode protection structure; and a first thyristor protection structure electrically connected in parallel between a signal pin and a high power supply. Additionally, the protection device includes a second diode protection structure and a second thyristor protection structure electrically connected in parallel between the signal pin and a low power supply. Furthermore, the protection device includes a third diode protection structure and a third thyristor protection structure electrically connected in parallel between the high power supply and the low power supply. The third thyristor protection structure and the third diode protection structure are synthesized as part of an integrated circuit interface and can share at least a portion of wells and/or diffusion regions associated with the first and second thyristor protection structures. |
