Nice Clean 8"/200mm Intel Wafer FOR SALE

[Vlasta]

Hi - offers please in open forum. $10 registered airmail shipping.



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[kosmokrator]

What is this? Pg Arrays??? Veryy High Dense looking

[Vlasta]

I don't have a microscope so cannot tell - I can try and take a macro tomorrow and post it.

[Vlasta]

OK Guys - some close up shots - as close as I can get them anyway.

I got a nice email from someone telling me what these might be and if some clever dude (cleverer than me anyway) could remove the copper layer then we might see something truly beautiful underneath.

From my correspondent:-

"looks like real chips, since (I think) there are bond pads on the edges.
I think these copper-based chips typically have their real circuitry
buried under a layer of insulating material, upon which one or more
layers of copper are created. In some cases, these top layers are for
hundreds or thousands of solder balls, by which the chip is connected to
its package. In other cases, with conventional bond-pads, I think the
top layers are for interconnect and power supply distribution.

With these copper-based silicon wafers, I find it is usually possible to
get a glimpse of the real circuitry, right at the edge of the wafer,
where the polishing system has not allowed the upper layers of copper
and their insulating layer to remain. If you see pretty colours a few
mm from the edge, that is the diffraction patterns of the very fine
tracks used in the actual circuitry, with transistors etc. So what you
see in most of this chip is just the top layers which may have little to
do with the real circuitry.

This looks like a very big chip to have so few connections that bond
pads will be sufficient. Alternatively, it will have solder balls,
perhaps thousands of them, but these may not yet have been added."

Pictures:-

[Vlasta]

My correspondent tells me he saw under the microscope the Intel logo and a part number.......

According to an academic paper from 2006, the datasheet used to be at:

http://www.intel.com/design/network/products/optical/tsp/IXF19301.htm

but there's no mention of this chip on the Intel site today.

It seems they sold it off to another company:

http://www.cortina-systems.com/products/view/69

It is a multi-port 10Gbps communcations framer - shovelling data in any
out in various formats.

Their documents date from 2006, so I guess that is when Intel sold the
chip to them. Here is a write-up of the sale of the optical networking
department of Intel:

http://www.lightreading.com/document.asp?doc_id=103387

I couldn't find a datasheet, but this is a description of its functions:

http://www.cortina-systems.com/products/download/51

It seems from this:


http://www.cortina-systems.com/dynamic/pcns/91/PCN400823-01_IXF19301_IXF19
302_IXF19303_IXF19325_BGA_Substrate_Change_Product_Material_Marking_and_Pi
n_1_Orientation_FFF.pdf

that they package it in a BGA package.