14 Sep
2013
14 Sep
'13
1:46 p.m.
That's a fixture for dicing wafers. The plastic wrap stuff is dicing tape,
and is stretched over the stainless steel fixture. Then, a wafer is placed
on the dicing tape, and the whole assembly is aligned to the marks in a
dicing machine. The wafer is diced, and dies are removed from the tape.
I work in a microelectronic lab, so I work with these regularly. I'd be
happy to take it and see more of what it is.
Kyle
On Sep 14, 2013 3:06 PM, "Fred Cisin" <cisin at xenosoft.com> wrote:
Stainless steel ring about 11.5" OD, 10" ID,
sides cut to square about
11", plus a couple of registration?/automated handling notches
Middle has blue clear plast stretched across it.
handwritten (sharpie?) on the blue plastic: 2/2 MDS 035764
second layer with scotch tape 7.5" diameter
Center 6" diameter has a matrix/grid of IC chips, each about 1/7" square.
A bit over half removed, some systematically, some random.
Printed label:
MASK NO: (97102 hand-written))
WF LOT NO: (0646-284-00)
NO. OF GOOD DIE: (765)
WF SCRIBE NO: 17
rubberstamped? "ACC 10819"
Anybody know more specifically what kind of chip-making system? vintage?
etc.?
Anybody want it as a display example?
(FPUIB)
--
Grumpy Ol' Fred cisin at xenosoft.com
www.xenosoft.com/FPUIB