| 摘要 |
PROBLEM TO BE SOLVED: To provide a semiconductor protective circuit which improves electrostatic discharge protection in an integrated circuit and system. SOLUTION: This semiconductor electrostatic protective circuit is provided with a device terminal for external connection, a first reference supply terminal, a primary protective circuit (SCR) having a current path connected between the device terminal and the first reference supply terminal, and plural trigger circuits connected in parallel between a terminal of the primary protective circuit and the first reference supply terminal. Each of the trigger circuit has a transistor (N11) and a resistor (R12) connected in series with the transistor. |
