Heat treatment apparatus by means of light irradiation
First Claim
1. A heat treatment apparatus for irradiating a substrate with flashlight to heat said substrate, comprising:
- a light source having a plurality of flash lamps;
a chamber provided below said light source;
a holding member for holding a substrate in said chamber; and
a light shield provided in said chamber, said light shield blocking light emitted from said light source from reaching a metal surface inside said chamber,wherein said light shield is a quartz member with a quartz surface roughened by honing.
2 Assignments
0 Petitions
Accused Products
Abstract
A chamber has a wall surface fitted with a liner. The liner is removably provided to the chamber with no fixed relation therebetween. By simply opening a light source to remove a heat diffusion plate, a hot plate and a tubular member from the chamber, the liner can be easily detached accordingly from the chamber. When a semiconductor wafer cracks to litter the chamber with its fragments, the chamber can be easily cleaned by simply detaching the liner. The liner has an outer surface subjected to surface roughening by honing. When a flash lamp emits flashlight of considerably high intensity, the roughened outer surface of the liner serves to block this flashlight. As a result, the metal surface inside the chamber is prevented from being exposed to the flashlight emitted from the flash lamp.
24 Citations
18 Claims
-
1. A heat treatment apparatus for irradiating a substrate with flashlight to heat said substrate, comprising:
-
a light source having a plurality of flash lamps; a chamber provided below said light source; a holding member for holding a substrate in said chamber; and a light shield provided in said chamber, said light shield blocking light emitted from said light source from reaching a metal surface inside said chamber, wherein said light shield is a quartz member with a quartz surface roughened by honing. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A heat treatment apparatus for irradiating a substrate with flashlight to heat said substrate, comprising:
-
a light source having a plurality of flash lamps; a chamber provided below said light source; a holding member for holding a substrate in a substantially horizontal position in said chamber; and a liner removably provided at said chamber, along an inner wall side surface and an inner wall base surface of said chamber to cover said side and base surfaces, said liner having a roughened outer surface facing said side and base surfaces of said chamber and an inner surface having greater smoothness than said outer surface. - View Dependent Claims (8, 9, 10)
-
-
11. A heat treatment apparatus for irradiating a substrate with flashlight to heat said substrate, comprising:
-
a light source having a plurality of flash lamps; a chamber provided below said light source; a holding member for holding a substrate in said chamber; and a light shield provided in said chamber, said light shield blocking light emitted from said light source from reaching a metal surface inside said chamber, wherein said light shield has a roughened outer surface and an inner surface having greater smoothness than said outer surface. - View Dependent Claims (12, 13, 14, 15)
-
-
16. A heat treatment apparatus for irradiating a substrate with flashlight to heat said substrate, comprising:
-
a light source having a plurality of flash lamps; a chamber provided below said light source; a holding member for holding a substrate in a substantially horizontal position in said chamber; and a liner removably provided at said chamber, along an inner wall side surface and an inner wall base surface of said chamber to cover said side and base surfaces, wherein said liner is a quartz member with a quartz surface roughened by honing. - View Dependent Claims (17, 18)
-
Specification