Intel Beats AMD to Lead-Free Processors - Techist - Tech Forum

Go Back   Techist - Tech Forum > Computer Hardware > New Systems | Building and Buying
Click Here to Login
Closed Thread
Thread Tools Display Modes
Old 10-24-2007, 01:19 PM   #1 (permalink)
Join Date: Aug 2005
Posts: 3,479
Default Intel Beats AMD to Lead-Free Processors

Six Years In The Making - Lead Free Processors

With next weeks launch of Intel's 45nm family of microprocessors they will have official removed 100 percent of the lead (Pb) across its entire 45nm series of microprocessors. This is a huge milestone and it has taken Intel six years to strip the lead from the manufacturing process on their microprocessors! With the world so focused on 'going green' the move to a lead-free product could not have come at a better time.

Current 90nm and 65nm Intel desktop processors are 95% lead free and have been so for a few years now, but have had lead in the C4 bumps. Now that Intel has moved to 45nm Hi-k metal gate process technology they can transition to new lead-free materials on the bumps. This means that lead-tin solder is a thing of the past as tin-silver-copper solder can now do the job.

If you're not familiar with what a 'bump' is and where the change is taking place, it's under the integrated heat spreader (IHS) between the die and the substrate. Each and every flip-chip bump is now lead-free.

Now that the flip-chip bump solder points that used to contain lead have been replaced with a copper column and lead-free solder the processors are more environmentally friendly, but this does come at a cost. The melting point of lead-tin is 183C, whereas the melting point of lead-free solders is greater than 220C. This means increased stress on the flip-chip package and more power consumption since the convection ovens need their baking temperatures increased. To manage the increased stress and survive the higher process temperatures, Intel reengineered many parts of the processor. At the same time, the new solder alloy dramatically increases the current carrying capability of the electrical connection. Copper is a better conductor than the previously used lead/tin solder and it can connect to massive metal layers inside the die, so it's actually better in this aspect. In the end using a little more energy to remove lead and having a better electrical connection, seems like the better choice for the environment.

The next time you buy or upgrade a computer system choosing a lead-free part is more than likely not a key feature that influences buying decisions, but if it is, you are now a better informed consumer. It should be pointed out that although 45nm processors are now 100% lead-free, Intel chipsets are not. Upcoming 65nm Intel Express chipsets will transition to being 100% lead-free in 2008, so we will still have to wait a bit for a 100% lead-free motherboard. Kudos to Intel for being the first to have a lead-free processor, but don't stop! Keep going green across the board!

Legit Bottom Line: The new lead-free bumps is a step in the right direction; they can carry more current and enable higher performance microprocessors, is more reliable, and is better for the environment since it is 100 percent lead-free.
Legit Reviews - Intel Beats AMD to Lead-Free Processors - Six Years In The Making - Lead Free Processors


maroon1 is offline  
Old 10-24-2007, 01:34 PM   #2 (permalink)
Master Techie
Join Date: Sep 2007
Location: NB, Canada
Posts: 2,215
Send a message via MSN to Akubane
Default Re: Intel Beats AMD to Lead-Free Processors

I'm not one who's ever been too worried about this sort of thing, but I can aprpeciate what intel has done/is doing ^^ Ill give my kudos to them on this one.


C2D E8400 | Diamond 4870 X2 | Biostar Tpower I45 | 4GB G.Skill PK
Corsair 750TX | Xigmatek HDT-S1283 | CM Haf 932
2x Seagate 1TB 7200.11 | Asus Xonar D2X | LT Z-5500's
Razer Lycosa | Razer Lachesis | LG L245WP-BN 24" MVA LCD
Akubane is offline  
Old 10-24-2007, 02:06 PM   #3 (permalink)
Lord Techie
veedubfreak's Avatar
Join Date: Jul 2007
Posts: 6,979
Default Re: Intel Beats AMD to Lead-Free Processors

This almost sounds like a spin off of finding a better way to make the chip rather than an intentional environmental move. Either way kudos i guess. Still wonder how much mercury and other toxic stuff there is in the cpu/boards that go into landfills because people are too lazy to recycle them.
Nothing to see here.
veedubfreak is offline  
Old 10-24-2007, 02:35 PM   #4 (permalink)
Techie Beyond Description
veg1992's Avatar
Join Date: Dec 2006
Posts: 19,993
Default Re: Intel Beats AMD to Lead-Free Processors

now that should be put in a Green PC
I do not accept help requests and/or deleted threads/complaints by PM, Profile or IM/Email. Just ask on the forums! Also, I do have Lockerz invites if you want them, feel free to PM me your email if you want one :0

If I help you, or you just like what I said, rep me by clicking the
or under my avatar; it helps me know that my advice actually helped you.

.. But things don't go according to plan! My Actual Rig, 2009:
veg1992 is offline  
Closed Thread

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
New Intel Allendale Processors & Price Cuts___Oct 21st maroon1 New Systems | Building and Buying 29 10-14-2007 10:50 AM
Intel Demonstrates First 32nm Chip and Next-Generation Nehalem Processors maroon1 New Systems | Building and Buying 27 09-20-2007 12:07 AM
AMD Triple Core? Osiris Monitors, Printers and Peripherals 4 09-19-2007 06:36 PM
Intel future processors will be lead-free and environmentally friendly maroon1 New Systems | Building and Buying 2 05-23-2007 10:25 AM

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 02:46 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.