originally posted by: jester420
my opinion? The patent was for utilizing the way that 'dyes' are added to a 'wafer'...
Ever watch old SNL, where they had Emily Litella?
She'd have a big spiel on, say, "Violins on TV", and why she didn't understand why anyone would be opposed to them. Then at the end, one of the
other characters would say "Violence, not violins" and Emily would say "Never mind".
This is one of those times.
The patent isn't about "dyes" as in "coloring", it's about dies, as in a unit of integrated circuitry.
On a wafer of monocrystalline silicon, you will have many complete integrated circuits, or transistors, or diodes. Sometimes hundreds. They don't do
you a lot of good on the wafer. In order to break the completed wafer up into finished parts, you typically use a sort of saw to separate the parts
from the wafer. This is called dicing the wafer.
The parts you get at the end are called dies, as a generic term.
You can, and often do, refer to the discrete parts on the wafer prior to dicing as a "die" as well. And that's what the patent is referring to.
Generally, you would often have every part on the wafer be the same die. But sometimes it would be nice to pack in some other parts that use the same
process characteristics, so you could either yield what you needed for shipment, or use up the wasted area on a wafer if you've got parts with large
dies - for example, a wafer of large die like those for a CPU will leave blank wafer area where you can't quite fit in another processor. A wafer
costs a LOT. For a relatively small 150mm wafer, you might be talking $10K by the time it goes through all the steps. Blank spots are expensive. So,
packing in a few MPUs or some logic here and there in the slack places sort of gets back the money you're tossing there.
The patent, which, by the way, is ALREADY ASSIGNED TO FREESCALE, is for a method of arranging dies on a wafer. Killing the inventors doesn't make any
sense whatever, because the company already has the patent. There's nothing to take from the inventors, because they have no control or financial
interest in the patent. And it's not an earth-shattering patent anyway.
And it has nothing to do with "dyes".