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    • 6. 发明申请
    • ELECTRON BEAM WELDING OF LARGE VACUUM CHAMBER BODY HAVING A HIGH EMISSIVITY COATING
    • 具有高电感涂层的大型真空室体的电子束焊接
    • WO2010056615A4
    • 2010-09-10
    • PCT/US2009063671
    • 2009-11-09
    • APPLIED MATERIALS INCKURITA SHINICHIBEHDJAT MEHRANINAGAWA MAKOTO
    • KURITA SHINICHIBEHDJAT MEHRANINAGAWA MAKOTO
    • H01L21/00H01L21/02
    • B65D7/06B23K15/0006B65D7/38H01L21/67379
    • Embodiments disclosed herein relate to a large vacuum chamber body that has been welded together. The chamber body may have a high emissivity coating on at least one surface therein. Due to the large size of the chamber body, the chamber body may be formed by welding several pieces together rather than forging the body from a single piece of metal. The pieces may be welded together at a location spaced from the corner of the body, which may be under the greatest stress during evacuation, to ensure that the weld, which may be the weakest point in the body, does not fail. At least one surface of the chamber body may be coated with a high emissivity coating to aid in heat transfer from incoming, heated substrates. The high emissivity coating may increase substrate throughput by lowering the time that may be needed to reduce the substrate temperature.
    • 本文公开的实施例涉及已经焊接在一起的大型真空室主体。 腔体可以在其中的至少一个表面上具有高发射率涂层。 由于腔室主体的尺寸较大,可以通过将多个部件焊接在一起而不是从单个金属件锻造主体而形成腔体。 这些部件可以在与身体的角部间隔开的位置处被焊接在一起,该位置在排空期间可能处于最大的应力下,以确保可能是身体中最弱点的焊缝不会失效。 室主体的至少一个表面可以涂覆有高发射率涂层,以帮助来自加热的基底的热传递。 高发射率涂层可以通过降低降低衬底温度所需的时间来增加衬底通量。