Intel Goes Lead-Free for 45nm, Again
Nirav Sanghani & Kristopher Kubicki
May 23, 2007 4:34 AM
comment(s) - last by
Lead-tin interconnects, like the ones seen on this Intel "Prescott" processor, are a thing of the past. (Thumbnail and image source: Chipworks)
Intel is taking the next step in environmentally friendly products
announced on Tuesday
that the future of its microprocessors will be lead-free and environmentally friendly. This follows a big tech industry shift towards products that are more environmentally friendly. The shift will begin with its line of "green" 45-nanometer high-k metal gate (Hi-k) processors, which includes the next-generation Intel Core 2 Duo, Core 2 Quad and Xeon processors.
Lead is mainly used in a variety of micro-electric "packages" and "bumps" that attach the Intel chip to "packages", which are then wrapped around the chip and used to connect it to the motherboard. Package designs include pin grid array, ball grid array, and land grid array, and will all be 100 percent lead-free.
With the introduction of 65nm
, Chipworks -- a company that reverses engineers chip packaging -- discovered that Intel
from lead-tin solder-ball interconnects to plated copper pillars. Since then, all 65nm Intel processors no longer use lead for interconnects.
"Intel is taking an aggressive stance toward environmental sustainability, from the elimination of lead and a focus on greater energy efficiency of our products to fewer air emissions and more water and materials recycling," said Nasser Grayeli, Intel vice president and director of assembly test technology development, Technology and Manufacturing Group.
Lead, which can cause neurological damage in humans if ingested, was used in electronics for decades due to its electrical and mechanical properties. Intel produced its first lead-free flash memory product in 2002, and began shipping products with 95 percent less lead than previous chips in 2004. The remaining 5 percent was replaced by a tin/silver/copper alloy in the first-level interconnect, the solder joint that connects the silicon die to the package substrate.
In February 2003, the European Union adopted the Restriction of Hazardous Substances Directive. The directive mandated that all electronics sold must be near lead-free by June 2006. Special clauses protected microprocessors from utilizing some lead in their design, but AMD and Intel both opted to go lead free before the call to action date anyway.
Production on the Intel lead-free 45 nanometer high-k processors,
, will begin in the second half of this year.
This article is over a month old, voting and posting comments is disabled
RE: California in my mind .......
5/23/2007 5:01:53 PM
There are tons of radioactive uranium in the ground too, but that doesn't mean I wouldn't care if toxic nuclear waste was seeping into the ground.
RE: California in my mind .......
5/23/2007 5:11:00 PM
Nuclear waste isn't dangerous from the natural uranium found within it, but rather the large amount of daughter radionuclides which don't exist in nature. That's a far cry from disposing of lead identical to that found naturally within the ground.
And in any case, the dangers of radioactive waste disposal are drastically overstated as well. As long as any plutonium was first removed, nuclear waste could safely and easily be disposed of by simply dispersing it in the ocean. Emotionally, you might shy away from that solution, but given the vast amounts of radioactivity already naturally present in seawater, it wouldn't pose a threat to the environment or to human health.
"This is about the Internet. Everything on the Internet is encrypted. This is not a BlackBerry-only issue. If they can't deal with the Internet, they should shut it off." -- RIM co-CEO Michael Lazaridis
Intel Unveils "Penryn" Performance
April 17, 2007, 9:11 PM
Intel's Yonah and Presler Opened Up: Copper Instead of Solder
January 27, 2006, 4:20 AM
Qualcomm Unveils First 64-Bit "Snapdragon 410" Mobile Processor
December 10, 2013, 12:20 PM
12/9/2013 Daily Hardware Reviews
December 9, 2013, 5:34 PM
Samsung Unveils "Industry First" 1TB mSATA SSD
December 9, 2013, 10:21 AM
12/4/2013 Daily Hardware Reviews
December 4, 2013, 5:43 PM
12/2/2013 Daily Hardware Reviews
December 2, 2013, 3:41 PM
OCZ Goes Bankrupt, SSD Assets are Targeted by Toshiba
December 1, 2013, 9:58 PM
Most Popular Articles
Hackers Nab 2 Million Login Credentials from Facebook, Gmail, Twitter
December 5, 2013, 1:00 PM
Experts: Masturbation Prevents Cancer, Diabetes, Insomnia, and Depression
December 6, 2013, 2:01 PM
Thieves Steal Truck with Cobalt-60 Onboard in Mexico, Will Die "Without a Doubt" from Exposure
December 5, 2013, 12:04 PM
Man Arrested for Using 5 Cents Worth of Electricity to Charge Nissan Leaf at Middle School
December 4, 2013, 8:00 PM
New Reversible "Type-C" USB Plug Coming in Mid-2014
December 4, 2013, 10:38 AM
Latest Blog Posts
Justice Leaks Details of Next HTC One Two Flagship Phone
Dec 5, 2013, 4:04 PM
Global Cyber Espionage Concerns Reveal Growing Cyber Armies
Nov 29, 2013, 11:04 AM
Is The Period Becoming an Expression of Anger?
Nov 26, 2013, 2:02 PM
NSA and Congress -- You Will Never Kill the Constitution, It's an Idea
Nov 10, 2013, 2:00 PM
AT&T Explores $100B+ USD Deal to Acquire Vodafone's European Operations
Nov 4, 2013, 7:34 AM
More Blog Posts
Copyright 2013 DailyTech LLC. -
Terms, Conditions & Privacy Information