公开(公告)号：CA2306319A1

公开(公告)日：2000-10-30

申请号：CA2306319

申请日：2000-04-20

Applicant: LUCENT TECHNOLOGIES INC

Inventor： MAISANO JOSEPH JOHN JR ,  ABYS JOSEPH ANTHONY

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：CA2336977A1

公开(公告)日：2000-11-16

申请号：CA2336977

申请日：2000-05-03

Applicant: LUCENT TECHNOLOGIES INC

Inventor： MAISANO JOSEPH JOHN JR ,  EPSTEIN PETER ,  DULLAGHAN CONOR ANTHONY ,  ABYS JOSEPH ANTHONY

IPC: C01G55/00 ,  C25D3/50

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.