Attention IBM gurus

Post new topic   Reply to topic    CPU-World.com forums Forum Index -> Information Requests (Collectible Chips only)
View previous topic :: View next topic  
Author Message
Chiefish



Joined: 23 Sep 2007
Posts: 2153
Location: Northwest N.J. U.S.A

PostPosted: Sat Apr 11, 2009 10:24 am    Post subject: Attention IBM gurus Reply with quote

I bought a bunch of these flatpaks and they were sold as IBM chips that were picked up when they closed the Oswego N.Y. plant. Can anyone ID what these are exactly or even verify that they are IBM chips for me. One thing about them is that they are in a holder thats pretty darn impressive to see, there are two levers on the bottom of the black case that you flip and it is released from the carrier. Neat chips none the less, just trying to verify what they are exactly.
_________________
"The only reason for time is so that everything doesn't happen at once." A.E.
Back to top
View user's profile Send private message [ Hidden ]
Windmiller



Joined: 24 Jun 2005
Posts: 1716
Location: Chapel Hill, NC

PostPosted: Sat Apr 11, 2009 2:38 pm    Post subject: Reply with quote

I almost bought those but couldnt figure out what they were. I am still looking but the pcak opf markings makes it difficult.
Back to top
View user's profile Send private message [ Hidden ]
kosmokrator



Joined: 03 Jul 2008
Posts: 4085
Location: Athens-GR

PostPosted: Sat Apr 11, 2009 2:44 pm    Post subject: Reply with quote

open one if u have few........
i thin at least u take an idea if is ram rom,gate arrays or complex logic inside...
Back to top
View user's profile Send private message [ Hidden ]
Chiefish



Joined: 23 Sep 2007
Posts: 2153
Location: Northwest N.J. U.S.A

PostPosted: Sat Apr 11, 2009 7:10 pm    Post subject: Reply with quote

Ok I removed a lid and heres whats inside. Any Ideas?
_________________
"The only reason for time is so that everything doesn't happen at once." A.E.
Back to top
View user's profile Send private message [ Hidden ]
kosmokrator



Joined: 03 Jul 2008
Posts: 4085
Location: Athens-GR

PostPosted: Sun Apr 12, 2009 1:01 am    Post subject: Reply with quote

nice!!!
for me looks like some dsp or something complex...
its not ram-rom for sure...

if u find any microscope may u find on die some markings ect...
Back to top
View user's profile Send private message [ Hidden ]
CPUShack



Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA

PostPosted: Sun Apr 12, 2009 10:20 am    Post subject: Reply with quote

dunno looks like RAM (or gate array) to me.

as the die shows very much repeating circuits.

_________________
New for 2025! The CPU Shack has a co-processor!

Visit The CPU Shack of microprocessor history and information.
Back to top
View user's profile Send private message   Visit poster's website AIM Address MSN Messenger
Chiefish



Joined: 23 Sep 2007
Posts: 2153
Location: Northwest N.J. U.S.A

PostPosted: Sun Apr 12, 2009 4:32 pm    Post subject: Reply with quote

Ok I dug out the old microscope and heres what i see, only three idfferent markings, none of which so far has helped me to ID this chip yet. Altho i can confirm it was made in the USA
_________________
"The only reason for time is so that everything doesn't happen at once." A.E.
Back to top
View user's profile Send private message [ Hidden ]
johnorun



Joined: 04 Apr 2008
Posts: 3364
Location: Chicago, IL- US

PostPosted: Sun Apr 12, 2009 8:35 pm    Post subject: Reply with quote

Is there a special type of of microscope that can take closeup pics with a camera...and not too expensive?
I'd like to be able to look at my chip dies and find hidden figures, messages, etc. Smile
Back to top
View user's profile Send private message [ Hidden ]
Chiefish



Joined: 23 Sep 2007
Posts: 2153
Location: Northwest N.J. U.S.A

PostPosted: Mon Apr 13, 2009 8:53 pm    Post subject: Reply with quote

OK I took some more time to examine this chip and i found another marking on it today, I think it says IDT but i am not positive, what do you guys see. I know the quality of the pics are not good, but its the best this $20 microscope can do and i am even using extra lighting just to get these. I will spend more time later trying to get a better pic of this. But remember this pic is taken at 200x magnification already. And it makes it very hard to get the object moved and into a good place in the frame.
_________________
"The only reason for time is so that everything doesn't happen at once." A.E.
Back to top
View user's profile Send private message [ Hidden ]
CPUShack



Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA

PostPosted: Mon Apr 13, 2009 8:55 pm    Post subject: Reply with quote

yup tis an IDT marking and a 1988 date
_________________
New for 2025! The CPU Shack has a co-processor!

Visit The CPU Shack of microprocessor history and information.
Back to top
View user's profile Send private message   Visit poster's website AIM Address MSN Messenger
Display posts from previous:   
Post new topic   Reply to topic    CPU-World.com forums Forum Index -> Information Requests (Collectible Chips only) All times are GMT - 5 Hours
Page 1 of 1
Jump to:  
You can post new topics in this forum
You can reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum

Powered by phpBB © 2001 phpBB Group