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http://dx.doi.org/10.5762/KAIS.2010.11.10.3626

Improvement of the Uniformity of Temperature Distribution inside Semiconductor Test Equipment Chamber  

Lee, Kwang-Ju (School of Mechanical Engineering, Korea University of Technology and Education)
Jeong, Kyung-Seok (School of Mechanical Engineering, Korea University of Technology and Education)
Park, Sung-Mun (Department of Mechanical Engineering, Graduate School, Korea University of Technology and Education)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.11, no.10, 2010 , pp. 3626-3632 More about this Journal
Abstract
Some design changes were made to enhance the uniformity of temperature distribution inside the chamber of semiconductor test equipment. The design changes include the installation of adjustable airflow controller inside the chamber, the alignment of the centers of heater and match plate, the change in the size and the shape of holes in match plate base, and the addition of new holes of 2 mm diameter in order to allow airflow directly to the temperature sensors. In order to verify their effects, the temperature distributions inside the chambers were measured using 32 RTD sensors before and after the design changes. The temperature distributions were in the ranges of 87.1 to $91.5^{\circ}C$ ($90{\pm}2.9^{\circ}C$) and 89.5 to $90.8^{\circ}C$ ($90{\pm}0.8^{\circ}C$) before and after the design changes, respectively. The above temperature distribution after design changes was maintained for longer than 15 minutes, which satisfied the target temperature range of $90{\pm}1^{\circ}C$ for longer than 10 minutes.
Keywords
Semiconductor test equipment; Temperature distribution; Temperature control;
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