Integrated circuit, a set of electronic components on a single unit.

Microchip implant (animal), a microchip implanted into animals.

Microchip implant (human), a microchip implanted into a human being.

Microchip Technology, a company that makes popular 8, 16 and 32-bit microcontroller lines.

Microchip (comics), a supporting character in The Punisher comics