Subject: | |
From: | |
Reply To: | |
Date: | Tue, 30 May 2006 08:37:48 -0400 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
Leo,
While the gold itself should not be attacked by cupric chloride etching, it
is fairly porous at 12-20 microinches. I would expect the underlying nickel
to be attacked substantially. Ammoniacal final etch is the etch of choice
for this finish.
Regards,
Denis Morrissey
Senior Manager- Wet Process Engineering
Tel: (631) 845-1041 EXT: 18
Fax: (631) 501-1270
[log in to unmask]
-----Original Message-----
From: Lin Leo [mailto:[log in to unmask]]
Sent: Saturday, May 27, 2006 3:25 AM
Subject: Electrolytic Ni/Au in DES
Hi,
Does anyone have experience on electrolytic Ni/Au(Au thickness: ca. 12~20
micro-incheses; Hard gold Au-Co alloy) acting as etching resist in
DES(developing-CuCl2/HCl-stripping) process? Does Au thickness have impact
on etching solution attack?
Thanks
Leo
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to
[log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to
[log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16
for additional information, or contact Keach Sasamori at [log in to unmask] or
847-615-7100 ext.2815
-----------------------------------------------------
___________________________________________________ 最新版 Yahoo!奇摩即時通
訊 7.0,免費網路電話任你打! http://messenger.yahoo.com.tw/
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------
|
|
|