Newport 882

Busy this weekend so heres some archival footage. Newport 882 photosensor:


Heres an overview of the inside:

Bonding shot:

Can see some markings in the corner:

Xilinx XC3090...sort of

This week was going to be a XC3090 which didn't pan out but heres at least something interesting as to why. First, the package was somewhat unusual in that its plastic and ceramic:


The F16600 block in the metal is glued or glass sealed on, not exactly sure which it was. In any case I carefully used a small butane torch and took it off with some pliers. Presumably as I was removing it a particle fell on the die. No big deal, I could just wash it off. I noticed a strange shine but didn't think too much of it at the time, dismissing it as a thick overglass or something. I washed it for a bid and the particle didn't come off. Finally I got a little more aggressive and took some lens tissue to it and it STILL wouldn't come off. Confused I put it under the microscope and poked at it. After a bit of poking:


I poked a hole in the gel covering the die. Its only on the die, not on the gold area. It surrounds the bond wires. Heres some grabbed with tweezers:


So other things came up and didn't get a die photo. I cleaned it with some RFNA (soaked fiberglass strip on top) which is probably done by now but didn't get a chance to clean and photograph it.

AD534: "Internally Trimmed Precision IC Multiplier"

Map: http://siliconpr0n.org/map/ad/ad534/mit20x__semipol/

Compare with the datasheet mask:

Old map: http://siliconpr0n.org/map/ad/ad534/unitron/ Its not quite a fair comparison though because it also used a point and shoot camera. I forget if that was taken with Unitron or Zeiss (aus Jena) objectives.

Mostek MK5009P

Map: http://siliconpr0n.org/map/mostek/mk5009p/top_metal_mit20x_semipol/


"Mostek industrial products: Counter Time-Base Circuit". Found this in a junk drawer already opened. It was stored in a vial but it seems to have taken some damage. I meant to rotate the map, might re-upload a fixed version later.

National Semiconductor DM7474J

"Dual D-Type Positive-Edge -Triggered Flip-Flops With Preset And Clear"

This was decapped by heating with a mini butane torch and dripping water on top so that the glass seal cracked. The lid was then removed and photographed in package. I had some pictures of the pinout and now I'm quite annoyed that the seem to have disappeared.

AWS scale controller

AWS scales are decent bang for buck. Unfortunately, they don't have reverse voltage protection and mine died after I plugged the wrong polarity adapter into it. Heres to its memory.

Wiki page / map link: http://siliconpr0n.org/archive/doku.php?id=mcmaster:aws:scale1

Still on board:


This chip uses aluminum bond wires which are less common but maybe more so for high volume electronics. I don't know exactly how many of these they sell but anything that is COB tends to fall under that category. I used H2SO4 to decap it and so while the PCB has been de-epoxied the copper traces are still intact.

Another interesting thing is that it has bus cheesing (the slits in the power rails around the chip) as well as fill patterns which generally suggests 350 nm or less and/or CMP. However, it appears to be non-planarized as you can see wires making imprints as they cross.

Xilinx XC9536XL

Wiki page / map link

Apologies but this ones a bit filthy. I've gotten better at cleaning things but took this a while ago.

The datasheet describes this as being two "54V18 Function blocks" meaning two areas with 54 inputs and 18 outputs. The die is pretty symmetric so its easy to guess where these top level blocks are.