Electrostatic discharge protection circuit

An electrostatic discharge protection circuit located between a first voltage terminal and a second voltage terminal, the electrostatic discharge protection circuit comprising:

• a first semiconductor switch electrically connected to the first voltage terminal, wherein if a voltage at the first voltage terminal complies with a starting condition, the first semiconductor switch is turned on, so that an electrostatic discharge current flows through the first voltage terminal and the first semiconductor switch;
• and
• a second semiconductor switch electrically connected between the first semiconductor switch and the second voltage terminal, wherein the electrostatic discharge current from the first semiconductor switch passes to the second voltage terminal through the second semiconductor switch;
• wherein the first semiconductor switch and the second semiconductor switch are low breakdown voltage devices, wherein each of the first semiconductor switch and the second semiconductor switch has a breakdown voltage lower than the voltage at the first voltage terminal.

A electrostatic discharge protection circuit located between a first voltage and a second voltage terminal, the electrostatic discharge protection circuit comprising:

• a first semiconductor switch electrically connected to the first voltage terminal, wherein if a voltage at the first voltage terminal complies with a starting condition, the first semiconductor switch is turned on, so that an electrostatic discharge current flows through the first voltage terminal and the first semiconductor switch;
• and
• a second semiconductor switch electrically connected between the first semiconductor switch and the second voltage terminal, wherein the electrostatic discharge current from the first semiconductor switch passes to the second voltage terminal through the second semiconductor switch;
• wherein the first semiconductor switch is a low breakdown voltage device having a breakdown voltage lower than the voltage at the first voltage terminal, and the second semiconductor switch is a low voltage semiconductor switch having a breakdown voltage lower than the voltage at the first voltage terminal.

An electrostatic discharge protection circuit located between a first voltage terminal and a second voltage terminal, the electrostatic discharge protection circuit comprising:

• a first semiconductor switch electrically connected to the first voltage terminal, wherein if a voltage at the first voltage terminal complies with a starting condition, the first semiconductor switch is turned on, so that an electrostatic discharge current flows through the first voltage terminal and the first semiconductor switch;
• and
• a second semiconductor switch electrically connected between the first semiconductor switch and the second voltage terminal, wherein the electrostatic discharge current from the first semiconductor switch passes to the second voltage terminal through the second semiconductor switch;
• wherein the first semiconductor switch is a high voltage semiconductor switch having a breakdown voltage higher than the voltage at the first voltage terminal, and the second semiconductor switch is a high gate low voltage semiconductor switch having a breakdown voltage lower than the voltage at the first voltage terminal.