Subject: | |
From: | |
Reply To: | |
Date: | Mon, 30 Jun 2008 09:57:42 +0200 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
David
The only way to remove gold chemically is using nitrohydrochloric acid or aqua regia which consists of three parts concentrated hydrochloric acid an one part nitric acid.
However, I don't know how the ceramic body of your components will like this treatment.
Best regards
Guenter
_____________________________________________________
EMPA
Swiss Federal Laboratories for Materials Testing and Research
Centre for Reliability
Guenter Grossmann, Senior Engineer
8600 Duebendorf
Switzerland
Phone: xx41 44 823 4279
Fax : xx41 44 823 4054
mail: [log in to unmask]
_____________________________________________________
>>> David Tremmel <[log in to unmask]> 06/27/08 9:42 pm >>>
Hello,
We have some ceramic LGAs which need the gold pads to be cleaned, probably
using an acid.
If anyone has performed this kind of work before and could recommend which
acid and some procedural help I would greatly appreciate it.
Thank you in advance for any suggestions and have a nice weekend.
Thank you,
David Tremmel
Value Recovery
847 858-5540 - Cell
847 557-9574 - Office
847 557-9573 - Fax
<http://valurecovery.com/> http://ValuRecovery.com
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
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
-----------------------------------------------------
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
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
-----------------------------------------------------
|
|
|