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Print 12 comment(s) - last by swim2383.. on Nov 3 at 10:09 AM


Section diagram of conventional MCP and new 16-Chip
These chips are made with frickin' laser beams

Samsung Electronics announced that it has developed the industry’s first process to enable production of a 16-chip multi-chip package (MCP) of memory. Samsung’s new 16-chip MCP technology, when applied to 8Gb NAND flash chips, can enable up to a 16GB MCP solution.

Advanced multi-chip package technology requires a combination of key processes such as wafer thinning, redistribution layer, chip sawing and wire bonding.

To increase the number of chips stacked vertically, Samsung introduced wafer-thinning technology that eliminates 24/25th of the thickness of each fabricated wafer to reduce the overall thickness to only 30-microns. This is just 65 percent the thickness of the 45-micron 10-chip MCP wafer Samsung developed in 2005 and similar to the size a human cell, which measures 20 to 30 microns.

As part of its MCP development, Samsung also developed a new laser-cutting technology to cut the wafer into individual chips. This new cutting process prevents the memory chips from breaking into pieces when they are cut using conventional blade sawing technology, which was originally designed only for sawing wafers up to 80 microns thick.

To vertically stack identically-sized dies, a redistribution layer technology also is applied in Samsung’s new multi-stack MCP process, to enable wafer fabricators to adhere the wire contacts from just one side, unlike the conventional method of extending wire connection from both sides of each chip. Along with a single wire contact per die, the dies are placed in a zigzag stack to minimize the use of space and the length of the wire connectors. Moreover, the thickness of the adhesive has been reduced to 20 microns bringing the height of a 16-die stack to 1.4mm. For comparison, Samsung's 10-chip MCP uses a 60-micron adhesive layer and has a total height of 1.6mm.

This isn't the first time Samsung has experimented with stacking. Samsung announced in April its 3D memory packaging technology which used "through silicon" interconnects.


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Amazing
By GoatMonkey on 11/2/2006 11:12:17 AM , Rating: 5
It's truly amazing that Samsung can get sharks to work in their factory. Not to mention the technical difficulties that must have been involved in creating an underwater fab.




RE: Amazing
By Trisped on 11/2/2006 11:21:38 AM , Rating: 2
True, but the benefit of using genetically altered sharks with lasers attached to their heads to cut the silicon is undeniable. Sometimes a scientist just has to bite the bullet.

In other news there seems to be a shortage of scuba divers.


RE: Amazing
By KingofFah on 11/2/2006 11:54:20 AM , Rating: 2
I'm guessing there was a typo regarding sharks. Sorry I missed it


RE: Amazing
By WhiteBoyFunk on 11/2/2006 12:00:18 PM , Rating: 3
Nope. What you missed actually is a funny Mike Myers movie. Get out more! :P


RE: Amazing
By Kim Leo on 11/2/2006 12:01:56 PM , Rating: 2
aahh ok :P shouldn't it be get less out and see some more movies? :D


RE: Amazing
By Kim Leo on 11/2/2006 12:00:39 PM , Rating: 2
i don't get it?..

however this, sounds nice though, Samsung seems quite in front with about everything.. except they're phones, the Danish translation didn't go well.. but this is nice(and i didn't meen that shark thing as posted above me :P) :)


RE: Amazing
By PlasmaBomb on 11/2/2006 5:13:26 PM , Rating: 2
The film they are refering to is Austin Powers.


RE: Amazing
By swim2383 on 11/3/2006 10:06:35 AM , Rating: 2
Yes the sharks are an exxxellent addition to Samsung's processing technology. Though, I must admit, it saddens me to know that the only remaining use for the ill tempered sea bass is to be donated to feed the starving African children because of their fierce, silicon shattering bit.


RE: Amazing
By PandaBear on 11/2/2006 8:45:57 PM , Rating: 2
Yeah, thin wafers in 30 microns are very fragile. I once held one in my hand and the edge accidently touched a solid object, and the entire wafer shattered into 30+ pieces.

I am sure those laser cutter are purchased from other vendor, Samsung is not in the business of building equipments, and it would cost them too much to do those R&D just for themselves.

They better have a rigid packaging too or else a little squeeze on the chip will break all the dice like a judo chop.


RE: Amazing
By Bladen on 11/3/2006 2:36:06 AM , Rating: 2
Another reference, brilliant!


RE: Amazing
By swim2383 on 11/3/2006 10:08:26 AM , Rating: 2
Yes the sharks are an exxxellent addition to Samsung's processing technology. Though, I must admit, it saddens me to know that the only remaining use for the ill tempered sea bass is to be donated to feed the starving African children because of their fierce, silicon shattering bit.


RE: Amazing
By swim2383 on 11/3/2006 10:09:21 AM , Rating: 2
crap... dbl post, sorry


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