Two Step Rapid Heating Reflow of Borophosphosilicate Glass and Estimation for a Coefficient of Heating Delay by Thermal Analyses.

DOI Web Site Web Site Web Site 16 References
  • Furukawa Masakazu
    Semiconductor Equipment Engineering Div., Canon Sales Inc., 2–13–29 Kohnan, Minato–ku, Tokyo 108, Japan
  • Kamegaya Hiroshi
    Department of Engineering, Tamagawa University, 6–1–1 Tamagawagakuen, Machida, Tokyo 194, Japan
  • Ono Ikuo
    Semiconductor Equipment Engineering Div., Canon Sales Inc., 2–13–29 Kohnan, Minato–ku, Tokyo 108, Japan
  • Haruna Katsuji
    Department of Engineering, Tamagawa University, 6–1–1 Tamagawagakuen, Machida, Tokyo 194, Japan

Bibliographic Information

Other Title
  • Two Step Rapid Heating Reflow of Boroph

Search this article

Description

The reflow of borophosphosilicate glass (BPSG) was studied by the rapid heating technique in two step irradiations using a halogen lamp. Pre-annealing (800° C, 30 s) during the first step irradiation, which aims to reduce the heating delay for the BPSG film, was carried out prior to high temperature heating (1050-1200° C, 20 s). The reflow angle with pre-annealing is consistently smaller than that without pre-annealing. Moreover, the reflow difference between with pre-annealing and without pre annealing decreases with increasing temperature because the heating delay for the BPSG film increases. The heating delay is primarily caused by thermal resistance between the film and the silicon wafer because, as the result obtained from the finite element method indicated, the heat conduction delay between the film surfaces was negligibly small. The equation for heat resistance can be solved analytically and the thermal resistance coefficient can be estimated by this solution, using the physical parameters of the film and the experimental results.

Journal

References(16)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top