VERFAHREN UND VORRICHTUNG ZUR BESCHICHTUNG VON SUBSTRATEN
    4.
    发明公开
    VERFAHREN UND VORRICHTUNG ZUR BESCHICHTUNG VON SUBSTRATEN 有权
    方法和装置涂层基布

    公开(公告)号:EP1264004A1

    公开(公告)日:2002-12-11

    申请号:EP01929385.1

    申请日:2001-03-01

    IPC分类号: C23C16/511 H01J37/32

    CPC分类号: H01J37/32192 C23C16/511

    摘要: The invention provides that for each surface of a substrate (2) to be coated, a plasma is injected into a coating reactor (1) used for carrying out microwave PCVD methods, and the surface to be coated is perpendicularly orientated with regard to the direction of spreading of the corresponding plasma. Dielectric compensating elements (4a, b) are introduced into the vicinity of the microwave injection points (3) and correct for non-homogeneities resulting in the distribution of plasma thicknesses by altering the microwave field distribution.

    PCVD-VERFAHREN UND VORRICHTUNG ZUR BESCHICHTUNG VON GEWÖLBTEN SUBSTRATEN
    7.
    发明授权
    PCVD-VERFAHREN UND VORRICHTUNG ZUR BESCHICHTUNG VON GEWÖLBTEN SUBSTRATEN 失效
    PCVD包覆基质的方法和装置拱形

    公开(公告)号:EP0753082B1

    公开(公告)日:1999-07-07

    申请号:EP95914322.3

    申请日:1995-03-29

    IPC分类号: C23C16/52 C23C16/50 C23C16/44

    摘要: A PCVD process is disclosed for producing coating layers of uniform thickness on domed substrates. The substrate surface to be coated is arranged in relation to the gas passage surface of a gas shower. In order to determine the appropriate processing parameters, in a first series of tests for one type of substrate to be coated the size of the gas passage surfaces and gas mass flows through the gas passage surfaces are kept constant while the intervals between plasma impulses are gradually modified, starting from an initial value tA until an optimum value teff is determined and until the uniformity of the thickness profile of the layers generated on the substrate may no longer be improved. If required, during a second series of tests the value teff may be kept constant while the thickness profile of the layers is further modified by further optimising the local parameters and/or the gas mass flows until its uniformity may no longer be improved. The device has a gas shower (10) subdivided into zones and whose gas passage surfaces (11) are arranged in relation to a substrate to be coated (1). The zones (13, 14 and 15) are connected by supply lines (21, 21a and 22) to a source of non film-forming gas (27) and to a gas source (28) that supplies fresh gas.