Patenton — panteon of patents

(19)

RU

(11)

2 019 925

(13)

C1

(51)

IPC

(21) (22)

Application

5024161/21, 1991-07-08

(22)

Actual filing date

1991-07-08

(45)

Published

1994-09-15

(72)

Inventor

Fadeev Е.I.Revzin G.Е.Lomovskij О.I.

(73)

Holder

Institut Khimii Tverdogo Tela I Pererabotki Mineral'Nogo Syr'Ja So Ran

METHOD OF ELECTROCHEMICAL METALLIZATION OF HOLES IN PRINTED CIRCUIT BOARDS Russian patent published in 1994 - IPC

Abstract RU 2019925 C1

FIELD: printed circuit boards industry. SUBSTANCE: surfaces of foil are cleaned after thermal treatment of workstocks activated in solution of palladiumless metallization by means of anode solution of products of thermal decomposition of copper hypophosphite for the course of 2-5 min with initial anode density of current 4-5 A/sg.dm. After this workstock is kept additionally for 1-2 min in electrolyte without current and is washed with water. EFFECT: simplification and intensification of process. 2 cl, 1 tbl

Similar patents RU2019925C1

Title Year Author Number
METHOD FOR ELECTROCHEMICAL METALLIZATION OF PRINTED-CIRCUIT BOARD HOLES 1993
  • Lomovskij O.I.
  • Fadeev E.I.
  • Fadeev V.E.
 RU2084087C1
METHOD FOR MANUFACTURING OF PRINTED CIRCUITS 1994
  • Pavljukhina L.A.
  • Chuprikova T.A.
  • Zajkova T.O.
  • Lomovskij O.I.
 RU2081519C1
PROCESS OF ACTIVATION OF DIELECTRIC SURFACES 1994
  • Pavljukhina L.A.
  • Zajkova T.O.
  • Odegova G.V.
 RU2074536C1
PROCESS OF METAL COATING OF HOLES IN PRINTED-CIRCUIT BOARDS 1999
  • Blokhina I.V.
  • Zaikin O.I.
  • Kovalev E.E.
  • Mil'Kin S.L.
  • Rudenko A.V.
 RU2153784C1
SOLUTION FOR CHEMICAL COPPER PLATING OF DIELECTRICS 1996
  • Lomovskij O.I.
  • Fadeev E.I.
 RU2114212C1
CATALYST FOR EXTRACTION OF COPPER FROM SPENT SOLUTIONS AND METHOD OF ITS PRODUCTION 1996
  • Pavljukhina L.A.
  • Zajkova T.O.
  • Fadeev E.I.
  • Lomovskij O.I.
  • Boldyrev V.V.
 RU2110323C1
METHOD OF CHEMICAL ETCHING BACKING MADE OF TRIACETYLCELLULOSE BEFORE CHEMICAL METALLIZATION 1991
  • Pavljukhina L.A.
  • Baev S.G.
  • Chuprikova T.A.
  • Bessmel'Tsev V.P.
  • Lomovskij O.I.
  • Shil'Nikov G.V.
  • Zuev Ju.L.
 RU2039848C1
METHOD FOR OBTAINING COPPER HYPOPHOSPHITE SOLUTION 0
  • Revzin Gennadij Efimovich
  • Lomovskij Oleg Ivanovich
  • Boldyrev Vladimir Vyacheslavovich
 SU1691298A1
METHOD OF PREPARING SUPERFINE CATALYSTS ON METAL CARRIERS 1997
  • Pavljukhina L.A.
  • Boldyrev V.V.
  • Savintseva S.A.
  • Zajkova T.O.
  • Odegova G.V.
 RU2115474C1
METHOD OF PREPARING REFRACTORY METAL SILICIDES 1994
  • Beljaev E.Ju.
  • Golubkova G.V.
  • Lomovskij O.I.
 RU2076065C1

RU 2 019 925 C1

Authors

Fadeev Е.I.

Revzin G.Е.

Lomovskij О.I.

Dates

1994-09-15—Published

1991-07-08—Filed

read Similar patents