Circuit device including guard ring and method of forming guard ring

A circuit device comprising:

• core circuitry;
• a first guard ring adjacent a first side of the core circuitry, wherein the first guard ring comprises a first component part;
• and
• a second guard ring, wherein the first guard ring is between the second guard ring and the core circuitry, the second guard ring comprises a second component part, and a second portion of the second component part is closer to the core circuitry than a first portion of the first component part.

A method comprising:

• implanting a first guard ring around a periphery of core circuitry, wherein the implanting of the first guard ring comprises:
• implanting a first component a first distance from the core circuitry on a first side of the core circuitry, and
• implanting a second component a second distance from the core circuitry on a second side of the core circuitry, wherein the second distance is greater than the first distance;
• and
• implanting a second guard ring around the periphery of the core circuitry, wherein the implanting of the second guard ring comprises:
• implanting a third component a third distance from the core circuitry on the first side of the core circuitry, and
• implanting a fourth component a fourth distance from the core circuitry on the second side of the core circuitry, wherein the third distance is greater than the fourth distance.