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Patent Searching and Data


Title:
THERMAL TREATMENT DEVICE
Document Type and Number:
Japanese Patent JP2023027614
Kind Code:
A
Abstract:
To provide a thermal treatment device capable of preventing excessive rise in temperature of LED lamps.SOLUTION: A semiconductor wafer W is held by a susceptor 74, in a chamber 6. An upper chamber window 63 is attached at an upper part of the chamber 6, while a lower chamber window 64 is attached to a lower part of the same. A plurality of LED lamps 45 are arranged below the chamber 6. A filter 90 is provided between the semiconductor wafer W held by the susceptor 74 and the plurality of LED lamps 45. The filter 90 is a water filter, containing water existing therein. The filter 90 blocks or attenuates radiant light (infrared light) emitted from the semiconductor wafer W while transmitting light (visible light) output from the plurality of LED lamps 45. This prevents the radiant light from the semiconductor wafer W from reaching the LED lamps 45 to prevent excessive rise in temperature of the LED lamps 45.SELECTED DRAWING: Figure 8

Inventors:
KAWARAZAKI HIKARU
Application Number:
JP2021132832A
Publication Date:
March 02, 2023
Filing Date:
August 17, 2021
Export Citation:
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Assignee:
SCREEN HOLDINGS CO LTD
International Classes:
H01L21/26; H01L21/265
Attorney, Agent or Firm:
Hidetoshi Yoshitake
Takahiro Arita