2.
    发明专利
    未知

    公开(公告)号:DE3783831D1

    公开(公告)日:1993-03-11

    申请号:DE3783831

    申请日:1987-05-12

    Applicant: IBM

    Abstract: An electroless plating bath (11) is selectively cleaned of organic contaminants. The organic contaminants are detected by measuring the capacitance between a working electrode (26) and counter electrode (27) with a potentiostat (31). The capacitance measurements are used to indicate the level of organic contaminants. Exposure of the dummy plating surface (39) in the electroless plating bath is controlled such that the exposed surface is directly proportional to the detected level of organic contaminants.

    3.
    发明专利
    未知

    公开(公告)号:DE3783831T2

    公开(公告)日:1993-08-19

    申请号:DE3783831

    申请日:1987-05-12

    Applicant: IBM

    Abstract: An electroless plating bath (11) is selectively cleaned of organic contaminants. The organic contaminants are detected by measuring the capacitance between a working electrode (26) and counter electrode (27) with a potentiostat (31). The capacitance measurements are used to indicate the level of organic contaminants. Exposure of the dummy plating surface (39) in the electroless plating bath is controlled such that the exposed surface is directly proportional to the detected level of organic contaminants.

    APPARATUS AND METHOD FOR MONITORING ELECTROLESS METALL PLATING BATHS

    公开(公告)号:DE3662278D1

    公开(公告)日:1989-04-13

    申请号:DE3662278

    申请日:1986-05-06

    Applicant: IBM

    Abstract: Apparatus and method for determining the deposition capability of an electroless metal plating bath (10) by monitoring the difference in instantaneous electrical potential between a pair of test substrates (12, 13) immersed in the bath in which one substrate (12) is seeded to initiate plating thereon of the bath metal and the other substrate (13) has a surface of the bath metal. The magnitude of the difference in potential and its change with respect to time during concurrent immersion of both substrates (12, 13) indicate the probable rate and quality of the bath deposition onto work pieces.

Patent Agency Ranking