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

IPC: C25D3/50 ,  C25D3/52 ,  C25D3/56 ,  C25D5/34 ,  C25D7/00

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

IPC: C25D3/00 ,  C01G55/00 ,  C25D3/50 ,  C25D3/56 ,  C25D21/12 ,  C25D21/18

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：DE60003363T2

公开(公告)日：2004-04-29

申请号：DE60003363

申请日：2000-04-25

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ABYS JOSEPH ANTHONY ,  MAISANO JOSEPH JOHN

IPC: C01G7/00 ,  B22F7/00 ,  C01D5/14 ,  C09D5/00 ,  C09D5/10 ,  C23C16/00 ,  C23C18/00 ,  C25D3/48

Abstract: A process for producing sodium gold sulfite in solution is described. The sodium gold sulfite solution is useful in gold electroplating baths, and can be used in applications which require pure, soft gold deposits. A process is also described whereby the sodium gold sulfite solution can be solidified by a freeze-drying process.

公开(公告)号：DE60003363D1

公开(公告)日：2003-07-24

申请号：DE60003363

申请日：2000-04-25

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ABYS JOSEPH ANTHONY ,  MAISANO JOSEPH JOHN

IPC: C01G7/00 ,  B22F7/00 ,  C01D5/14 ,  C09D5/00 ,  C09D5/10 ,  C23C16/00 ,  C23C18/00 ,  C25D3/48

Abstract: A process for producing sodium gold sulfite in solution is described. The sodium gold sulfite solution is useful in gold electroplating baths, and can be used in applications which require pure, soft gold deposits. A process is also described whereby the sodium gold sulfite solution can be solidified by a freeze-drying process.