Can your machine read masked over fiducials? If so, make them SMOBC (solder mask over bare copper)
Tim
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Jim West
Sent: Friday, September 05, 2014 8:47 AM
To: [log in to unmask]
Subject: Re: [TN] NOT Recognizing Panel Fiducials at paste printer.
Thanks for the replies. We build many thousands of this board so I was looking for a more permanent suggestion to give our board supplier. My thought was having the board supplier NOT apply solder (HASL) to the fiducials. Is this possible? Any other suggestion for a more permanent solution that our board house could implement without major changes (i.e. Immersion tin, or gold....). Major change would require an older board going through customer approval.
Best Regards,
Jim
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Ioan TEMPEA
Sent: Friday, September 05, 2014 7:52 AM
To: [log in to unmask]
Subject: Re: [TN] NOT Recognizing Panel Fiducials at paste printer.
Jim,
Removing the solder from the fiducials, using a solder wick, normally takes care of the issue.
Regards,
Ioan Tempea, P. Eng.
Manufacturing Engineer
Satellite Systems
MDA
21025 TransCanada Highway
Ste-Anne-de-Bellevue, Qc, Canada H9X 3R2
Tel: +1-514-457-2150-3556
www.mdacorporation.com
This e-mail, and any attachments, are intended solely for the use of the intended recipient(s) and may contain legally privileged, proprietary and/or confidential information. Any use, disclosure, dissemination, distribution or copying of this e-mail and any attachments for any purposes that have not been specifically authorized by the sender is strictly prohibited. If you are not the intended recipient, please immediately notify the sender by reply e-mail and permanently delete all copies and attachments.
-----Message d'origine-----
De : TechNet [mailto:[log in to unmask]] De la part de Stephen Gregory Envoyé : Thursday, September 04, 2014 4:29 PM À : [log in to unmask] Objet : Re: [TN] NOT Recognizing Panel Fiducials at paste printer.
Hi Jim,
An old trick that I've used many times when the camera doesn't recognize a fiducial is to take a pencil eraser to it...
Steve
Sent from my BlackBerry 10 smartphone.
Original Message
From: Jim West
Sent: Thursday, September 4, 2014 2:05 PM
To: [log in to unmask]
Reply To: TechNet E-Mail Forum
Subject: [TN] NOT Recognizing Panel Fiducials at paste printer.
Our paste printers are having difficulty recognizing the fiducials on an older board that has been running for years. The board house is applying HASL and because of that, as most are aware, the solder covering the fiducial pad will be inconsistent. I'm told that this has been an ongoing issue and the problem comes and goes.
We have three printers that are older that do not allow us to adjust the lighting.
I can't remember if we can have the board house apply HASL on just the component pads and not the fiducials? Any other suggestions?
Thanks,
Jim
______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________
--
This email and any attachments are only for use by the intended
recipient(s) and may contain legally privileged, confidential, proprietary or otherwise private information. Any unauthorized use, reproduction, dissemination, distribution or other disclosure of the contents of this e-mail or its attachments is strictly prohibited. If you have received this email in error, please notify the sender immediately and delete the original.
______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________
______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________
______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________
This e-mail or the documents accompanying this e-mail contain information that may be confidential and/or privileged.
It may also be prohibited from disclosure under applicable law. The information is intended to be for the use of the
individual or entity named on this transmission. If you are not the intended recipient, be aware that any disclosure,
copying, distribution or use of the contents of this information is without authorization and is prohibited. If you
have received this e-mail in error, please notify us immediately so that we can take action to correct the problem.
______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask]
______________________________________________________________________
|
