Well,

This is a situation where I cannot say the class would be -1 squared.

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 : Ken Bloomquist [mailto:[log in to unmask]] 
Envoyé : Thursday, November 19, 2009 10:54 AM
À : [log in to unmask]
Objet : Re: [TN] Discussion on the reliability of single-sided PCB & PCBA

Hi Werner,

I was unaware that IPC had sub-classes. If this material is "-1" then what
would it be if soldered with lead-free solder?

KennyB
-----Original Message-----
From: Werner Engelmaier [mailto:[log in to unmask]] 
Sent: Thursday, November 19, 2009 8:00 AM
To: [log in to unmask]
Subject: Re: [TN] Discussion on the reliability of single-sided PCB & PCBA

Hi Charming,
What you have is a PCB made of CEM-1 or -2 with unsupported holes---this is
Class -1(minus 1) not Class 2.
While this might work for some applications, you cannot claim that you have
a Class 2 product; and in harsh environments you clearly will have problems.
Werner
------------------

---------------------------------------------------
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
-----------------------------------------------------