-
公开(公告)号：JP2002060989A
公开(公告)日：2002-02-28
申请号：JP2001173378
申请日：2001-06-08
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DULLAGHAN CONOR ANTHONY , ABYS JOSEPH ANTHONY , EPSTEIN PETER , MAISANO JOSEPH JOHN
Abstract: PROBLEM TO BE SOLVED: To provide a palladium electroplating method free from the problems of the conventional method. SOLUTION: This electroplating bath includes a metal-sulfonic acid complex (where the metal is a noble metal) and free sulfonic acid. This noble metal includes Pd, Au, rigid Au (containing Ni or Co as a hardener), Pt, Rh, Ru and Ag and their alloys.
-
公开(公告)号：JP2001026427A
公开(公告)日：2001-01-30
申请号：JP2000160159
申请日：2000-05-30
Applicant: LUCENT TECHNOLOGIES INC
Inventor： ABYS JOSEPH ANTHONY , DULLAGHAN CONOR ANTHONY , EPSTEIN PETER , MAISANO JOSEPH JOHN
Abstract: PROBLEM TO BE SOLVED: To obtain a replenishing agent for electroplating bath, which is low in corrosive properties by distillating a palladium nitrate solution formed from palladium and an excess amount of a nitrate solution at a specified temp. and then adding palladium sulfate and ammonium hydroxide. SOLUTION: A palladium nitrate solution is prepared by washing a prescribed amount of metal palladium with HCl of about 40 to 60 deg.C to activate the palladium and bringing the palladium into contact with an excess amount of a nitrate solution. The nitrate solution is prepared using nitric acid and the nitrate solution is used preferably in the range of about 15 to 50 g/l. The palladium nitrate solution is distilled at a low temp. of
-
公开(公告)号：CA2336977A1
公开(公告)日：2000-11-16
申请号：CA2336977
申请日：2000-05-03
Applicant: LUCENT TECHNOLOGIES INC
Abstract: The specification describes novel rhodium sulfate complex solutions which ha ve a minimum of metal to metal complexing and are mostly complexed through the sulfate groups. Use of these solutions as electrolytes for plating rhodium results in electroplated layers with improved brightness and reduced stress.
-
-
Search Results
3
records
(took 0.021 seconds)
