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Tuesday, January 22, 2008

ROHS under review: IPC argues for consideration of life-cycle impacts, but is it a futile argument?

Jan 22 2008 10:31AM | Permalink |Comments (22) |


As we’ve reported here at EDN, the European Union’s ROHS (Restriction of Hazardous Substances) directive is currently under review. This review, as mandated by Article 6 of the directive, could see expansion in scope of ROHS including additional substance restrictions, the elimination of existing technology exemptions, and the inclusion of more electronics equipment.

The Government Relations and Environment, Health and Safety Committees of IPC — Association Connecting Electronics Industries this week voiced it concerns, encouraging the European Commission to make no changes at this time and urging that any proposed changes be held until the technical feasibility of their implementation can be reviewed thoroughly.

“Why compound the problem by expanding the scope of ROHS, when there are unresolved adverse reliability interconnect issues and greater adverse environmental, global warming and resource depletion impacts with the lead-free alternatives?" asked Lee Wilmot, director, Environmental, Health & Safety for TTM Technologies, and chairman of the IPC Environment, Health and Safety Committee, in a statement released Monday.

Dan Feinberg, president of Fein-Line Associates, and chairman of the IPC Government Relations Committee, backed Wilmot: “The industry is still dealing with the reliability effects of the lead-free provisions of ROHS. We’re urging the Commission to allow for a complete understanding of the effects of what has already been regulated, as well as new proposed regulations, before they are enacted into law. We also encourage the members of our industry to respond to the Commission’s invitation for comment and send their own specific concerns.”

IPC is making a common argument in the environmental compliance initiative arena: one for full life-cycle assessment. The trade association is looking for a comprehensive evaluation of the design, use, and end-of-life impacts of proposed substitutes before any changes take effect, but this may be a futile argument. If such an assessment wasn’t enacted before – proven by the continuing existence of design and end-product issues from lead removal including tin whiskers – there’s doubt that a full evaluation will take place this time around.

Cheers to IPC for standing up and voicing this concern on behalf of its 2,500 member companies. However, as important an argument as it is – and one that is becoming increasingly common – true full life-cycle assessment is often an ignored measure by the EU.

Of course, the EU has had no problem mandating life-cycle assessment by the electronics supply chain with EuP, a framework directive on eco-design of energy-using products. EuP and its requirements force manufacturers to consider the entire lifecycle of product groups -- from raw materials, acquisition, manufacturing, packaging, transport and distribution, installation and maintenance, use and end-of-life disposal -- and to assess the ecological profile of the equipment by requiring manufacturers at each stage to evaluate consumption of materials and energy, emissions to air and water, pollution, expected waste and recycling/re-use. Yet, the life-cycle assessment favor isn’t returned when it comes to the likes of ROHS or REACH
 
Speaking of REACH, IPC is also urging the Commission to consider that any further substance restrictions be regulated under the chemicals directive to avoid “unnecessary confusion” and “to prevent overlapping and duplicative chemical regulations.”

A copy of IPC’s full comments is available at www.ipc.org/commentRoHS.

Comments on ROHS can be submitted to the Commission until February 13.

See “ROHS: It ain’t over” and “Ring in the new rules” for more on the review of ROHS. 

Share your thoughts on this arguement and the ROHS review below.


Reader Comments



at 1/22/2008 2:18:17 PM, Hi-Rel Laboratories said:
It's about damned time someone stood up to the "political scientists" in Europe and pointed out that Lead free (albeit ignorant of science from the get go) is not eco-friendly, but rather it is worse for the environment when you look at the whole picture !!!.



at 1/22/2008 2:41:23 PM, lak said:
The IPC is JUST figuring out that there may be a life-cycle impact to ROHS.

We figured that out years ago in the high-rel industry. Check:

h**p://nepp.nasa.gov/WHISKER/

I always thought going lead-free was a marketing ploy. Electronics will fail earlier so more money will be spent on replacements. I KNOW it was not because poor kids in the ghetto were chewing on computer boards...

No sympathy here for not standing up sooner.



at 1/22/2008 7:06:52 PM, Anti-RoHS said:
Let's start backing "RoAR" - Restriction of Asinine Restrictions.

Has anyone quantified the incredible cost to the industry due to the conversion to 'lead free'? Not to mention the cost associated with products that will (or are) no doubt failing earlier.

I've always argued that, since they put WEEE in place first - which requires proper disposal of waste electronic equipment - then why was RoHS even needed?

The EU will never 'get it'.



at 1/23/2008 5:19:10 AM, DCE said:
It looks like the EU is taking the stance of "Don''t confuse us with the facts or with reasoned thinking! We''ve made up our minds, and the consequences be damned!"



at 1/23/2008 8:06:09 AM, Commonsense said:
Yea for the IPC. They join the other few voices out there for common sense.No more engineering by lawyers and politicians.



at 1/23/2008 8:46:25 AM, Will RoHS for Money said:
I applaud IPC but unfortunately, it will take much more than them to change the minds of the people who put this in place. Until companies like Phillips, GE, Siemens, LG, Sony, ect... lobby against RoHS, it will never go away, it will only get bigger. The industry giants need to step up, but as usual, until there are financial impacts to them, they won't... especially if they make more money because of RoHS and similar edicts.



at 1/23/2008 9:14:12 AM, Quality Matters said:
I build PCB assemblies for other people, my customers, and I advise against using a lead free process. I am completely set-up to do the process, and build boards regularly, but I am not satisfied with the lack of understanding for the long term implications of this process. So if you do not ship into the EU, than don't risk the liability of product problems. Many electronic products are very expensive when considering the total cost of ownership. Why ship boomerangs when you don't have to. This process should have been restricted to products shipping huge volumes only, with a comprehensive failure analysis program enacted first.



at 1/23/2008 9:56:38 AM, x_acto said:
Will the general public - most of which is unaware of the decreased reliability of lead free solder- think that the number of deaths or injuries caused by airplanes falling from the sky or automoviles and electronics prematurely malfunctioning would be a good trade off when compared with the -environmentalists- claimed number of people being poisoned with lead by owning or properly using electronic products that had their PCBs assembled with tin lead solder?

It's time for the public to wake up and see the fraud that is been perpetrated in the name of "good" environmentalism.





at 1/23/2008 10:22:28 AM, SHM said:
And where did the Lead (Pb) come from? Oh, that's right, from the earth! Who da' thunk!



at 1/23/2008 11:30:08 AM, JCK said:
Enough with the sky is falling argument. Many noted individuals proclaimed very early on that airplanes would fall out of the sky as a result of RoHS. I know of no large-scale product recalls resulting from RoHS. If there are RoHS related failures, it must be the best-kept secret that the electronics industry has ever pulled off. If you don’t like RoHS that’s fine, but without significant real world examples you can’t build a sound case for repealing RoHS. I would bet that more products fail due to improper design and manufacturing than have failed from RoHS related issues.



at 1/23/2008 12:27:39 PM, RKM said:
It appears that the EU has made a terrible blunder with the RoHS direction for lead-free. If we really controlled our waste for obsolete or defective leaded parts, maybe the land fills would not be contaminating the EARTH with lead. But wait, isn't that where it came from? Hey,look at China! They put lead in everything. Are they going to comply with the WEST? I don't think so. We will be inundated with plenty of toys, appliances, dishes, etc. that are chock full of lead. If anything, why doesn't the EU get the lead out of their @$$ and realize the implecations of this demise will not be solved by "ANY" control. We, I.E. each manufacturer, need to be conscience of actions and collectively tackle the land fill problems as well as address the needs for the future. LET's DO it right the first time.



at 1/23/2008 1:31:11 PM, Itsjustpolitics said:
Anybody that knows the history of EU environmental legislation will tell you that much of this is driven by Greenpeace and other environmental whackos. Those countries actually believe a lot of what they tell them in addition are accustomed to social engineering by politicians. So no wonder the scientific community is "afraid" to stand up to them for fear of loosing funding. Just look at the "global warming" arguments... seems only the hysterical arguments are allowed.



at 1/23/2008 4:01:12 PM, VG said:
I agree with IPC that the EU commission should not include more substances to the list when industry is still struggling to meet original RoHS requirements. On the other hand, I think it is about time to phase in category 8 and 9 within the scope. Current exemption is hurting more than helping cat 8 and 9 device manufacturers because part manufacturers have been successfully phasing out non-RoHS parts everyday and if category 8 and 9 products are not included within the scope soon, they will be left to work up with issues like: part shortages, premium price, contaminated and counterfeit parts.

One of the thing I have noticed since RoHS came in effect that most of the people who are complaining about RoHS/lead free have no or very little hands-on experience. I know companies in Asia are building thousands of PCBAs everyday without any noticeable reliability problem. In fact, I would not be surprised to see if one day people will discover that RoHS boards are more reliable that non-RoHS. So, please stop ridiculing RoHS without having enough facts about it. We all know change is always painful.

I do not consider myself an environmentalist or RoHS advocate, but I expressing my opinion based on my observations in the past 4 years.




at 1/24/2008 4:32:21 AM, GS said:
VG, it may be I am wrong, but reliability of solder joints takes years to be assessed. Ask those people who are soldering (trying) large BGA fine pitch on mo-board by using Pb Free solder. (ie. like M-S Xbox BGAs).
Or small company who closed the shopp becouse no money to invest for suitable oven or wave solder pb free compatible, etc, etc
RoHS YES, but Lead Free NO..



at 1/24/2008 5:27:51 PM, RobS said:
Does anyone think that we should perhaps fully explore the ''carbon footprint'' issue fully as well before we cripple our economy with subsidized solar energy and ethanol? Or, like the Europeans, have we concluded that "the time for debate is over?" The RoHS issue should serve as a warning for regulations implemented in the heat of political debates by individuals without the background to understand the evidence and effects of their policies.



at 1/25/2008 5:40:02 AM, PER said:
Objective evidence has been offered that printed wire board (PWB) reliability is reduced up to 50% on well fabricated RoHS compliant product. The reduction in reliability is expressed in premature circuits failures and degradation (delamination) of the epoxy system in PWBs. It appears that the temperature increase required by lead free assembly is at the limit of current dielectric materials capabilities. If RoHS requirements result in a faster aging, reduced reliability and an increased turn over of electrical products, then how has RoHS, in the "big" picture, improved the ecological impact? It was apparent at the onset and continues to be reinforced, that the EU is naive regarding electronics and ecology. The second law of thermal dynamics tells us, to paraphrase, “there is no free ride". One must do their homework or be judged arbitrary and incompetent. This is an example of advocacy in the face of objectivity. I would suggest some reading to the EU by one of their own. I believe it was Has Christian Anderson who wrote the "The Emperor New Cloths".



at 1/28/2008 8:21:59 PM, DCE said:
VG,

Most RoHS compliant devices haven''t been around long enough to talk about reliability, particularly in relation to Category 8 and 9 exemptions. Certifying medical, aviation, and certain kinds of test equipment is not something that can be done in a year or two. Design cycles can be very long as compared to consumer electronics and certification can take years.

Our company has had on-again off-again problems with PCB reliability, particularly when our equipment is used in very cold or very hot environments. This was not a problem before we switched over to RoHS complaint builds. We are also starting to see field returns on some of our first RoHS compliant equipment, most of which has been out there for about 2 years. Some can be attributed to abnormal wear and tear (some of the people using our gear are gorillas when it comes to electronics). But we''ve had some come back where we couldn''t immediately determine the cause of failure. Further investigation found tin whiskers were the culprit. We expect this problem to grow worse as time goes on.

Much of the consumer electronics some of the RoHS directives were aimed towards have a relatively short service life - less than 3 years. Things such as cell phones, PDAs, laptops, and so on tend to be upgraded on a pretty regular basis. They aren''t out there long enough to suffer from this problem. But equipment of the type we make has service lives measured in decades. Can you honestly tell me we won''t suffer an increasing percentage of field returns due to RoHS? I''d doubt you if you did.



at 2/25/2008 12:28:40 PM, Steve-san said:
"I know companies in Asia are building thousands of PCBAs everyday without any noticeable reliability problem."

The problems with reliability do not show up at production time. They show up years later as tin whiskers, cold solder joints due to differing coefficients of expansion, etc. RoHS is like Global Warming: It's a mixture of politics and religion.



at 3/3/2008 3:48:21 AM, A said:

From a personal point of view I have noticed since RoHS came along consumer electronics appear to have become less reliable.
Airborne lead was by far the most serious risk to health and the environment !
The alternatives to the RoHS restricted materials are not always environmentally friendly and neither are the processes that support them.
There are far more significant issues from a global perspective but like bottled water, patio heaters and plastic bags lead in electronics was an easy target for the bureaucrats.



at 3/6/2008 10:05:49 AM, Tawni H. said:
Please make up my mind. I think before they go any further, they need to review the standards COMPLETELY!!!!
Hooray for IPC.



at 3/6/2008 4:34:00 PM, Hole Tear said:
Other defects include copper erosion, blow holes, and hole tear.





at 2/7/2009 5:52:41 PM, Amos Batto said:
One thing to keep in mind is that Gartner shows that PCs have been having fewer defects comparing 2003-4 to 2005-6. There could be many causes, but I would speculate that one of the causes could be that RoHS got rid of unreliable hand assembly. OK, that doesn't mean that there won't be problems like tin whiskers down the road, but all evidence is that RoHS has been accompanied by falling failure rates in the short term.

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