Patent ID: 9343287
Filing Date: 2016-05-17
CPC Classification: H01L

Claim Text:
1. A substrate processing apparatus comprising: a spin chuck including a plurality of chuck pins disposed around a substrate, chuck opening/closing mechanisms that press the plurality of chuck pins onto a peripheral edge portion of the substrate to cause the plurality of chuck pins to grip the substrate in a horizontal posture, and a spin motor that rotates the substrate gripped by the plurality of chuck pins; a processing liquid supply device that supplies a processing liquid to the substrate held by the spin chuck; and a heat source disposed above the substrate which is held by the spin chuck, wherein the plurality of chuck pins includes a plurality of conductive members and a plurality of pin covers corresponding to the plurality of conductive members respectively and spaced in a circumferential directions, and each of the plurality of conductive members includes a gripping portion comprising a different material than the substrate for being pressable onto the peripheral edge portion of the substrate, and each of the plurality of conductive members is made of a material containing carbon, and each of the plurality of conductive members protrudes outward from an outer peripheral edge of the substrate in a plan view in a state where the gripping portion is pressed onto the peripheral edge portion of the substrate, and each of the plurality of the pin covers is a separate member from the plurality of conductive members, includes a pin covering portion that covers at least an upper surface of the gripping portion in a plan view, and covers, in a plan view, an entire region of a part of the conductive member protruding outward from the outer peripheral edge of the substrate in a plan view in a state where the gripping portion is pressed onto the peripheral edge portion of the substrate, and the chuck opening/closing mechanisms move each conductive member together with corresponding pin cover between a closed position where the gripping portion is pressed onto the peripheral edge portion of the substrate and an open position where the gripping portion is separated from the peripheral edge portion of the substrate.