ELECTROLESS METAL PLATING METHOD
    1.
    发明专利

    公开(公告)号:JPH11315384A

    公开(公告)日:1999-11-16

    申请号:JP3487499

    申请日:1999-02-12

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To provide a method for selectively applying electroless plating of metal, particularly gold and copper on a substrate such as a circuited substrate. SOLUTION: This method contains a stage in which the surface of a substrate 12 is applied with a dielectric permanent plating resist 16 contg. about 10 to 80% phenoxypolyol resin of about 40,000 to 130,000 molecular weight which is a condensate of epichloro-hydrin and bisphenol A, about 20 to 90% epoxidated multifunctional bisphenol A-formaldehyde-novolak resin of about 4,000 to 10,000 molecular weight, about 35 to 50% diglycidyl-ether of bisphenol A of about 600 to 2,500 and a cationic photoinitiator and capable of photoimaging by curing, a stage in which the permanent plating resist 16 is photopatterned, and the opening 18 exposing the region of the substrate 12 is formed therein and a stage in which the exposed region of the substrate 12 is applied with electroless plating of metal.

    ORGANIC ELECTRONIC PACKAGE AND METHOD OF DEPOSITING PALLADIUM-TIN SEED LAYER TO IT

    公开(公告)号:JPH1092977A

    公开(公告)日:1998-04-10

    申请号:JP21839897

    申请日:1997-08-13

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To manufacture an electronic package having an organic board. SOLUTION: An electronic package board is made of glass fibers and epoxy resin. In order to form a circuit on the electronic package board by an additive method, organic polymer electrolyte is applied to the surface of the organic board. A colloidal palladium-tin seed layer is deposited on the surface of the organic polymer electrolyte. Successively, optically focusable polymer is applied to the surface of the seed layer. The optically focusable polymer layer is patterned by photolithography to expose a part of the seed layer. The exposed part of the seed layer functions as catalyst of nonelectrolytic copper plating. Thus, a copper conductor layer is applied to the exposed part of the seed layer. In accordance with the ionization characteristics of employed individual polymer electrolytes, the organic polymer electrolyte is deposited from a solution whose pH is suitable for the required seed catalyst covering.

Patent Agency Ranking