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    Photoprinting apparatus
    1.
    发明授权
    Photoprinting apparatus 失效

    公开(公告)号：US3614225A

    公开(公告)日：1971-10-19

    申请号：US3614225D

    申请日：1969-11-06

    Applicant: WESTERN ELECTRIC CO

    Inventor： DINELLA DONALD ,  SCHUTZ ECKERT FRANZ

    IPC: G03F7/20 ,  G03B27/04

    CPC classification number: G03F7/2008

    Abstract: A temperature-controlled parabolic reflector, for reflecting an essentially parallel light beam, is employed to direct light from a light source to an image master spaced a predetermined distance from a printed circuit board to expose certain portions of a photoresist to define a circuit pattern. Electrical circuits are subsequently formed by electroless copper plating to the areas exposed by the pattern.

    APPARATUS AND METHODS FOR DISTRIBUTING LIQUID OVER A SURFACE
    6.
    发明专利
    APPARATUS AND METHODS FOR DISTRIBUTING LIQUID OVER A SURFACE 未知

    公开(公告)号：CA1144011A

    公开(公告)日：1983-04-05

    申请号：CA349965

    申请日：1980-04-16

    Applicant: WESTERN ELECTRIC CO

    Inventor： DINELLA DONALD ,  HALLER ALBERT H ,  POLAKOWSKI THEODORE D JR

    IPC: G03C1/74 ,  B05C1/02 ,  B05C11/105 ,  B05D1/18 ,  B05D1/28 ,  B05D1/40 ,  C23C18/16 ,  G03F7/16 ,  H05K3/00

    Abstract: 24. METHOD FOR DISTRIBUTING LIQUID OVER A SURFACE Abs tract A surface of a substrate (11) (FIG. 2) is uniformly coated with a liquid (L) by wetting the surface with the liquid and compressibly contacting the wetted surface with an applicator member (10) having an outer layer (14) of a compressible liquid absorbing material with inverse sponge characteristics and an inner layer (13) of compliant material. Preferably, the member (10) is a roller having a silicone rubber or polyurethane inner layer and a chamois outer layer. The substrate is thus coated with a layer having an unusually uniform thickness, including a uniformly thick layer through openings through the substrate. Also, buildup of ridges of the coating caused by dripping is avoided.

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