Check
the IC date codes!
Hi all!
We've been building
an assembly here for quite a while, and just recently experienced quite a bit
of failures at ICT with one IC. Out of 50 assemblies, only 3 passed. The
failures on the rest of them have been with one IC at the same
location.
I've x-ray'ed the failed parts and don't seen any broken or
missing wire bonds, so I wanted to take a look at the die area to see if I
could spot something obvious.
-Steve Gregory-
I have done this a few times with a 1/8" end mill. It is easier
to clamp it tight if you remove the leads first.
I'm curious too.
Charles
-----Original Message-----
From: Dehoyos, Ramon
[mailto:[log in to unmask]]
Sent: Thursday, July 24, 2003 12:06
PM
To: [log in to unmask]
Subject: Re: [TN] Plastic IC
Decapsulation...
Steve:
Do you want to
decapsulate the IC to view ESD damage with an SEM?
Or what is the
purpose? Just curious. You should be able to pry the top off
with a sharp
thin blade by inserting it in between top and bottom part of
the casing (
notice a line ) or perhaps saw the top off with a dremel saw .
The IC
itself is in the bottom part of the casing in a recessed area, so
no
damage will occur to it.
Regards,
Ramon
>
-----Original Message-----
> From: Steve Gregory
[SMTP:[log in to unmask]]
> Sent: Thursday, July 24, 2003 9:57
AM
> To: [log in to unmask]
>
Subject: [TN] Plastic IC
Decapsulation...
>
> Mornin' All!!
>
> Been rather
quiet on the list over the past week or so, hadn't it? Either
> means
everybody is on vacation, or everybody is so busy building stuff
>
without problems that they don't have any spare time...like to wish
that
> was the case.
>
> Anyway, about Plastic IC
Decapsulation, is that something I could do
> myself? If so, what sort
of chemicals would I use? Or is this something
> better left to be
done by the people who do that for a living, like
> failure analysis
labs?
>
> Thanks!
>
> -Steve
Gregory-
---------------------------------------------------
Technet Mail
List provided as a free service by IPC using LISTSERV 1.8e
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/html/forum.htm for additional information, or contact Keach
Sasamori at [log in to unmask] or 847-509-9700
ext.5315
-----------------------------------------------------