TECHNET Archives

December 2010

TechNet@IPC.ORG

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
vladimir Igoshev <[log in to unmask]>
Reply To:
Date:
Fri, 17 Dec 2010 20:32:13 +0000
Content-Type:
text/plain
Parts/Attachments:
text/plain (1 lines)
Hi Ioan,

I knew the terminations were fine, but you are saying the board side was OK too?
Vladimir

SENTEC Testing Laboratory Inc.
11 Canadian Road, Unit 7.
Scarborough, ON M1R 5G1
Tel: (416) 899-1882
Fax: (905) 882-8812
www.sentec.ca

-----Original Message-----
From: Ioan Tempea <[log in to unmask]>
Sender: TechNet <[log in to unmask]>
Date:         Fri, 17 Dec 2010 15:10:48 
To: <[log in to unmask]>
Reply-To: TechNet E-Mail Forum <[log in to unmask]>,
        Ioan Tempea <[log in to unmask]>
Subject: Re: [TN] Intermitent capacitor

Hi Stewart,

We just got the SEM pictures, there really is nothing wrong with the joints. Thanks a bunch for the clue!

And thanks a lot to all who responded, every answer had a good thing to know.

Best regards,

Ioan Tempea, ing.
Ingénieur Principal de Fabrication / Senior Manufacturing Engineer
T | 450.967.7100 ext.244
E | [log in to unmask] 
W | www.digico.cc

N'imprimer que si nécessaire - Print only if you must

-----Message d'origine-----
De : Stewart McCracken [mailto:[log in to unmask]] 
Envoyé : December-17-10 2:34 PM
À : [log in to unmask]
Objet : Re: [TN] Intermitent capacitor

Hi Ioan,

Curious to know if you managed to get any feedback on your capacitor micro-section analysis? 
Hope you got it sorted. 

Kind regards,

Stewart

Stewart McCracken
MCS Ltd.
Centre House
Midlothian Innovation Centre
Roslin
Midlothian
EH25 9RE
 
m. +44(0)7711 541735 
t.   +44(0)131 440 9090
f.   +44(0)131 440 9085
e.  [log in to unmask]
w. www.themcsgroup.co.uk
 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Ioan Tempea
Sent: 15 December 2010 18:26
To: [log in to unmask]
Subject: Re: [TN] Intermitent capacitor

Stewart,

Your point is very well taken! I have already contacted the lab, requesting their opinion and asking for an SME, if the sample is still able to withstand any further testing.

Thanks,

Ioan Tempea, ing.
Ingénieur Principal de Fabrication / Senior Manufacturing Engineer
T | 450.967.7100 ext.244
E | [log in to unmask] 
W | www.digico.cc

N'imprimer que si nécessaire - Print only if you must


-----Message d'origine-----
De : Stewart McCracken [mailto:[log in to unmask]] 
Envoyé : December-15-10 1:22 PM
À : [log in to unmask]
Objet : Re: [TN] Intermitent capacitor

Hi Ioan,

I think that it's worth re-stating that there is a very high chance that the feature which is highlighted is actually an artefact caused by edge rounding of the sample and viewing using light microscopy. In the first place, you might find it useful to examine the interface at higher magnification in the light microscope. There is quite a lot of relief on the sample and not that this runs roughly parallel to the feature in question at the edge of the device. It is quite possible, that the rounding occurs preferentially in this orientation, effectively "scooping out" a shallow trench immediately next to the device metallisation. Although the edge may be rounded, the shadowing can be reduced by viewing at slightly higher mag (200 - 500x). I wouldn't put too much effort into figuring out what might have created this feature until you conform whether it is in fact it is a defect. If you have access to a SEM, that's definitely your best option as it will also give you feedback on metallurgy. If not, there are plenty of labs who can help - including us!

Kind regards,

Stewart


Stewart McCracken
MCS Ltd.
Centre House
Midlothian Innovation Centre
Roslin
Midlothian
EH25 9RE
 
m. +44(0)7711 541735 
t.   +44(0)131 440 9090
f.   +44(0)131 440 9085
e.  [log in to unmask]
w. www.themcsgroup.co.uk
 


______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________

---------------------------------------------------
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.aspx?Pageid=E-mail-Forums for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------


______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________

---------------------------------------------------
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.aspx?Pageid=E-mail-Forums for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------

______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________

---------------------------------------------------
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.aspx?Pageid=E-mail-Forums for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------


______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________

ATOM RSS1 RSS2