Chemical filming solution and process for plating therewith

Claim 2

CLEANING THE SUBSTRATE;

Claim 3

IN THE METHOD OF FORMING METAL BASED FILMS ON NONMETALLIC SUBSTRATES COMPRISING THE STEPS OF SENSITIZING THE SUBSTRATE AND THEN SIMULATANEOUSLY CONTACTING THE SUBSTRATE WITH A SOLUTION CONTAINING A SALT OF A METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, COBALT AND IRON AND A SOLUTION CONTAINING A BORON-CONTAINING REDUCING AGENT WHEREBY BULK PRECIPITATION RAPIDLY OCCURS IN THE SOLUTION MIXTURE, THEREBY INACTIVATING IT AND PREVENTING FULL DEPOSITION OF THE METAL ON THE SUBSTRATE AS A FILM THE IMPROVEMENT COMPRISING CARRYING OUT SAID SIMULTANEOUS CONTACTING IN THE PRESENCE OF AN EFFECTIVE AMOUNT OF AT LEAST ONE MONOCARBONYL CONTAINING COMPOUND SELECTED FROM THE GROUP CONSISTING OF LINEAR ALKYL KETONES, SATURATED CYCLIC KETONES, AND CONDENSATION ALCOHOLS OF LINEAR ALKYL KETONES AND SATURATED CYCLIC KETONES TO RETARD BULK PRECIPITATION AND ENHANCE FILM DEPOSITION.

Claim 4

IN THE METHOD OF FORMING METAL BASED FILMS ON NONMETALLIC SUBSTRATES COMPRISING THE STEPS OF SENSITIZING THE SUBSTRATE AND THEN SIMULATANEOUSLY CONTACTING THE SUBSTRATE WITH A SOLUTION CONTAINING A SALT OF A METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, COBALT AND IRON AND A SOLUTION CONTAINING A BORON-CONTAINING REDUCING AGENT WHEREBY BULK PRECIPITATION RAPIDLY OCCURS IN THE SOLUTION MIXTURE, THEREBY INACTIVATING IT AND PREVENTING FULL DEPOSITION OF THE METAL ON THE SUBSTRATE AS A FILM THE IMPROVEMENT COMPRISING CARRYING OUT SAID SIMULTANEOUS CONTACTING IN THE PRESENCE OF AN EFFECTIVE AMOUNT OF AT LEAST ONE MONOCARBONYL CONTAINING COMPOUND SELECTED FROM THE GROUP CONSISTING OF LINEAR ALKYL KETONES, SATURATED CYCLIC KETONES, AND CONDENSATION ALCOHOLS OF LINEAR ALKYL KETONES AND SATURATED CYCLIC KETONES TO RETARD BULK PRECIPITATION AND ENHANCE FILM DEPOSITION.

Claim 5

CONTACTING THE SUBSTRATE WITH A SOLUTION COMPRISING A COMPOUND CONTAINING A METAL SELECTED FROM THE GROUP CONSISTING OF TIN AND PALLADIUM WHEREBY THE SUBSTRATE IS SENSITIZED;

Claim 6

CONTACTING THE SUBSTRATE WITH A SOLUTION COMPRISING A COMPOUND CONTAINING A METAL SELECTED FROM THE GROUP CONSISTING OF TIN AND PALLADIUM WHEREBY THE SUBSTRATE IS SENSITIZED;

Claim 7

The method of claim 1 wherein said substrate is glass.

Claim 8

contacting the substrate with a solution comprising a compound containing a metal selected from the group consisting of tin and palladium whereby the substrate is sensitized;

Claim 9

contacting the substrate with a solution comprising a compound containing a metal selected from the group consisting of tin and palladium whereby the substrate is sensitized;

Claim 10

washing away residue sensitizing solution from step 2;

Claim 11

washing away residue sensitizing solution from step 2;

Claim 12

The method of claim 1 wherein said boron-containing reducing agent is an alkali metal borohydride and wherein said contacting is in the presence of a hydrazine compound.

Claim 13

WASHING AWAY RESIDUE SENSITIZING SOLUTION FROM STEP 2;

Claim 14

WASHING AWAY RESIDUE SENSITIZING SOLUTION FROM STEP 2;

Claim 15

SIMULATNEOUSLY CONTACTING THE SUBSTRATE WITH A METAL CONTAINING SOLUTION AND A REDUCING SOLUTION FOR THE CONTEMPLATED METAL SO THAT THE SOLUTIONS MIX, THE METAL SOLUTION COMPRISES A SALT OF A METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, COBALT AND IRON AND A MONOCARBONYL CONTAINING COMPOUND SELECTED FROM THE GROUP CONSISTING OF LINEAR ALKYL KETONES, SATURATED CYCLIC KETONES, AND CONDENSATION ALCOHOLS OF LINEAR ALKYL KETONES AND SATURATED CYCLIC KETONES IN AN EFFECTIVE AMOUNT TO RETARD BULK PRECIPITATION OF METAL, AND THE REDUCING SOLUTION COMPRISING AN ALKALI METAL BOROHYDRIDE AND SUFFICIENT ALKALINE MATERIAL SO THAT THE MIXTURE HAS AN INITIAL PH UPON CONTACTING GREATER THAN 7;

Claim 16

SIMULATNEOUSLY CONTACTING THE SUBSTRATE WITH A METAL CONTAINING SOLUTION AND A REDUCING SOLUTION FOR THE CONTEMPLATED METAL SO THAT THE SOLUTIONS MIX, THE METAL SOLUTION COMPRISES A SALT OF A METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, COBALT AND IRON AND A MONOCARBONYL CONTAINING COMPOUND SELECTED FROM THE GROUP CONSISTING OF LINEAR ALKYL KETONES, SATURATED CYCLIC KETONES, AND CONDENSATION ALCOHOLS OF LINEAR ALKYL KETONES AND SATURATED CYCLIC KETONES IN AN EFFECTIVE AMOUNT TO RETARD BULK PRECIPITATION OF METAL, AND THE REDUCING SOLUTION COMPRISING AN ALKALI METAL BOROHYDRIDE AND SUFFICIENT ALKALINE MATERIAL SO THAT THE MIXTURE HAS AN INITIAL PH UPON CONTACTING GREATER THAN 7;

Claim 17

The method of claim 3 wherein said hydrazine compound is hydrazine sulfate.

Claim 18

simultaneously contacting the substrate with a metal containing solution and a reducing solution for the contemplated metal so that the solutions mix, the metal solution comprises a salt of a metal selected from the group consisting of nickel, cobalt and iron and a monocarbonyl containing compound selected from the group consisting of linear alkyl ketones, saturated cyclic ketones, and condensation alcohols of linear alkyl ketones and saturated cyclic ketones in an effective amount to retard bulk precipitation of metal, and the reducing solution comprising an alkali metal borohydride and sufficient alkaline material so that the mixture has an initial ph upon contacting greater than 7;

Claim 19

simultaneously contacting the substrate with a metal containing solution and a reducing solution for the contemplated metal so that the solutions mix, the metal solution comprises a salt of a metal selected from the group consisting of nickel, cobalt and iron and a monocarbonyl containing compound selected from the group consisting of linear alkyl ketones, saturated cyclic ketones, and condensation alcohols of linear alkyl ketones and saturated cyclic ketones in an effective amount to retard bulk precipitation of metal, and the reducing solution comprising an alkali metal borohydride and sufficient alkaline material so that the mixture has an initial ph upon contacting greater than 7;

Claim 20

washing away residue filming solution mixture from step 4; and

Claim 21

washing away residue filming solution mixture from step 4; and

Claim 22

The method of claim 1 wherein the mono-carbonyl containing compound is Added to the metal containing solution in an amount from 0.05 to 10 percent by volume of said metal containing solution.

Claim 23

WASHING AWAY RESIDUE FILMING SOLUTION MIXTURE FROM STEP 4; AND

Claim 24

WASHING AWAY RESIDUE FILMING SOLUTION MIXTURE FROM STEP 4; AND

Claim 25

DRYING THE FILMED SUBSTRATE.

Claim 26

DRYING THE FILMED SUBSTRATE.

Claim 27

The method of claim 1 wherein said metal is nickel.

Claim 28

drying the filmed substrate.

Claim 29

drying the filmed substrate.

Claim 30

The method of claim 1 wherein the mono-carbonyl containing compound is selected from the group consisting of acetone, methyl ethyl ketone, cyclohexanone, diacetone alcohol and mixtures thereof.

Claim 31

The method of claim 7 wherein the mono-carbonyl containing compound is acetone.

Claim 34

The method of claim 9 wherein the substrate is glass.

Claim 35

The method of claim 9 wherein: two sensitizing solutions consisting essentially of stannous chloride and palladium chloride are applied; the metal salt containing solution on a one liter basis consists essentially of