P7 CPU Chip
While working for IBM, I developed, and taught a semiconductor (microelectronics) course. One of my "show and tells" was a P7 CPU chip (wafer, and modules). The P7 was developed by IBM in 2009, using a 45nm (nanometer) technology. 45nm is the minimum feature size (poly width) for the chip design. The P7 successor is the P8 CPU.
Here are some photos, that I thought would be of interest. The DOF is extremely shallow in some of the photos, even at f/22. 1 300mm silicon wafer. Red rectangle is one of many P7 CPU chips on the wafer. http://bob-ayers.smugmug.com/Other/I...C_00001-XL.jpg 2 Closer image of P7 CPU chip. http://bob-ayers.smugmug.com/Other/I...C_00002-XL.jpg 3 P7 CPU chip size comparison to penny. http://bob-ayers.smugmug.com/Other/I...C_00003-XL.jpg 4 Magnified edge of P7 CPU chip. http://bob-ayers.smugmug.com/Other/I...C_00004-XL.jpg 5 Magnified edge of P7 CPU chip. http://bob-ayers.smugmug.com/Other/I...C_00005-XL.jpg 6 Eye of needle used for size reference. Spherical shapes are solder balls used for I/O, power, and ground connections to chip. http://bob-ayers.smugmug.com/Other/I...C_00006-XL.jpg 7 Black rectangle is backside of “diced” chip attached to ceramic substrate. Chip solder balls are reflowed to attach chip to ceramic substrate. http://bob-ayers.smugmug.com/Other/I...C_00007-XL.jpg 8 Edge of ceramic substrate. http://bob-ayers.smugmug.com/Other/I...C_00008-XL.jpg 9 Bottom of ceramic substrate. Gold pads are for chip connections to socket/card. http://bob-ayers.smugmug.com/Other/I...C_00009-XL.jpg 10 Top of completed module. http://bob-ayers.smugmug.com/Other/I...C_00010-XL.jpg |
.......a few more
11 Edge of completed module.
http://bob-ayers.smugmug.com/Other/I...C_00011-XL.jpg 12 Bottom of completed module. http://bob-ayers.smugmug.com/Other/I...C_00012-XL.jpg |
That is REALLY cool!!!:rock:rock:rock
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Definitely cool stuff!
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:eek: :bow:rock
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I'd like to know more about chips and how they are made and what an engineer thinks about when improving them and so on.
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Those are really cool pics.. I don;t understand them... but they are cool! You are/were an IBM'er.... today was my wife's thirty-third anniversary with IBM.... 1/14/81....
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that is really cool , way over my head but something tells me I use them and don't even know it.
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Thanks Everybody! I retired from IBM March '12 with 39 years of service. |
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Thanks Mike! |
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Here is one you can buy http://www.ebay.com/itm/IBM-pSeries-...-/160660958501 |
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Thanks guys! |
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