Patent ID: 11961748
Assignee: SEMES CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. An apparatus for treating a substrate, the apparatus comprising:
a support plate configured to support the substrate; and
a liquid supplier configured to dispense a treatment liquid onto the substrate supported on the support plate,
wherein the support plate includes:
a chuck configured to support the substrate;
a plurality of heating lamps provided inside the chuck and configured to emit light to heat the substrate supported on the chuck; and
a reflector configured to reflect the light toward an edge region of the substrate,
wherein the reflector includes a curved surface configured to form part of a virtual ellipse having a first focal point and a second focal point, when viewed from a front side view of the support plate,
wherein the reflector includes:
a base disposed under the plurality of heating lamps; and
a protrusion protruding upward from the base,
wherein the protrusion includes the curved surface and the curved surface is configured to face a perimeter of the substrate,
wherein the protrusion is arranged between an outermost heating lamp and an adjacent heating lamp to the outermost heating lamp,
wherein the first focal point is in agreement with the center of the outermost heating lamp when viewed from the front side view, and
wherein the second focal point, when viewed from the front side view, overlaps the edge region of the substrate supported on the chuck,
wherein the protrusion includes:
a first protrusion including a first curved d surface configured to reflect thermal energy toward a first position on the edge region of the substrate; and
a second protrusion including a second curved surface configured to reflect the thermal energy toward a second position on the edge region of the substrate, the second position being different from the first position.