Vlad,
Why not? You can etch with beam step by step into the pads and get an
excellent depth profile too.
/Inge
----- Original Message -----
From: "Vladimir Igoshev" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, October 21, 2009 5:55 PM
Subject: Re: [TN] ENIG Issue
> Well, Auger would be an "overkill" for the case.
>
> Vladimir
> SENTEC
> 11 Canadian Road, Unit 7.
> Scarborough, ON M1R 5G1
> Tel: (416) 899-1882
> Fax: (905) 882-8812
> www.sentec.ca
>
>
> -----Original Message-----
> From: "Meeks, Stephen" <[log in to unmask]>
> Date: Wed, 21 Oct 2009 08:26:35
> To: <[log in to unmask]>
> Subject: Re: [TN] ENIG Issue
>
> Bill,
>
> You may have a surface nickel issue that is affecting the solderability.
> There are very few in-line fixes, but for root cause, conduct a surface
> analysis study for a nickel rich surface (Auger). There may have been an
> issue during the fabrication ENIG process.
>
> Quick Test
> 1. Apply only solder paste to the panel conduct reflow (bottom or top)
> 2. Apply only solder paste to the second side and conduct reflow.
> 3. The "non" or dewetted panel will serve as a talking point with the
> board supplier.
>
> Stephen Meeks, Jr.
> Tel +1 480 502 6428
> Fax +1 480 502 6400
> [log in to unmask]
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of [log in to unmask]
> Sent: Tuesday, October 20, 2009 4:21 PM
> To: [log in to unmask]
> Subject: [TN] ENIG Issue
>
> Fellow TechNetters: I ran into a problem and I am looking for more
> information. We had some PCB made with ENIG for SMT applications. We
> populated the backside, ran them through the convection oven, the solder
> fillets were fine. Populated the first five (5) PCBs on the topside,
> ran them through the convection oven, and the solder fillets were quite
> bad, actually dewetted. Could not even be touched up. Tried two (2)
> more random PCBs and got the same results. Never have run into this
> before but have been told it is NOT a unique problem. Has anybody had
> this happen? Have to tell our customer that they are not going to be
> getting their PCBs on time and would rather not look like the north end
> of a southbound mule.
>
>
>
> Thanks in advance for your assistance.
>
>
>
> Bill Black
>
> 1 631 667 9699 X13
>
> ---------------------------------------------------
> 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
> -----------------------------------------------------
> This communication, including any attachments, may contain information
> that is proprietary, privileged, confidential or legally exempt from
> disclosure. If you are not a named addressee, you are hereby notified
> that you are not authorized to read, print, retain a copy of or
> disseminate any portion of this communication without the consent of the
> sender and that doing so may be unlawful. If you have received this
> communication in error, please immediately notify the sender via return
> e-mail and delete it from your system.
>
> ---------------------------------------------------
> 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
-----------------------------------------------------
|
