>I am thinking of simply switching to use lead-free solder only, and wond= er=20 >if there is some problem i don=B4t see thas someone can point out. There are MANY potential problems. None are insurmountable. It seems that= at=20 a casual level people are finding it largely seems to work OK. It seems t= hat=20 at a professional level there are many "fish hooks" which may not be=20 apparent at first glance. Here is a re-post of my post on the subject on September 29th. I recommend that you look at article which seem of relevance to you on th= e=20 first site mentioned below Russell McMahon _________________________________ REPOST: If you read nothing else here the "expert advice on soldering" link may b= e useful You MAY be able to got to the free downloads here http://www.bobwillis.co.uk/lead/html/downloads1.htm or may have to go via leadfreesoldering.com home page. Free registration doesn't seem choosy about what fields you fill in. This SHOULD scare you Secondary Lead-Free Reflow Failures pdf file (250k) Lead-Free Fillet Lifting pdf file (1Meg ) Pin In Hole Reflow Production with Lead-Free pdf file (242K) Lead-Free Wave Soldering pdf file (116K) Copper Erosion with Lead-Free pdf file (877K) Lead-Free Photo Album Examples zip file (719K) Lead-Free Component Solderability Testing pdf file (191k) SMART Group Lead-Free Defect Guide pdf file (2meg) Lead-Free Component Considerations pdf file (252k) Introduction to Vapout Phase Soldering pdf file(200k) Simple PCB Solderability Testing pdf file(106k) Solder Wicking with Lead-Free Solders pdf file (227K) Lead-Free Fillet/Pad Lifting Video Clip (RealPlayer .rm file (100k) RM ____________________________ From: Farnell InOne Sent: Tuesday, September 21, 2004 11:12 AM Subject: RoHS Directive News 6 Welcome to the sixth edition of Farnell InOne RoHS and WEEE Directive Facts - your regular update on the RoHS and WEEE Directives and how they will affect you and your business. Our RoHS Directive website http://pull.xmr3.com/p/249-416667-5C54/3440847/rohswebsitenz.htm continues to be updated regularly. This bulletin we confirm the Farnell InOne approach to part numbering, an= d look at the subject of demonstration and certification of RoHS compliance. We also consider the implications of the third, and final consultation pa= per from the UK government covering the RoHS and WEEE Directives. RoHS and WEEE Directives - last chance to have your say. The UK Government, Scottish Executive, Welsh Assembly and Northern Irelan= d Administration have released their third, and final, consultation documen= t on the RoHS and WEEE Directives. The paper includes proposals covering issues such as the establishment of= a national clearing house, the allocation of WEEE and take-back in respect = of the WEEE Directive. Among other things, the section on RoHS considers how compliance will be demonstrated and the on-going debate regarding minimum concentration levels. This means that the UK, like a number of other Member States, including France, Germany and Ireland are not likely to be in a position to transpo= se these Directives into national law by the deadline of 13th August 2004. Responses are requested by 29th October 2004. For the full text and details of how to reply click here. http://pull.xmr3.com/p/249-416667-0E14/3440850/weeewebsitenz.htm RoHS and WEEE - Revised Timetable Following the delay in the release of the third and final government consultation paper in the UK, the revised timetable now reads: July 2004 Final consultation on draft regulations and non-statutory guida= nce Late 2004 Regulations laid 13 August 2005 Producer responsibility for financing commences alongside retailer take-back 1 July 2006 RoHS substance ban commences 31 December 2006 Collection and recycling targets to be achieved WEEE - Role of the Clearing House Exactly how a national clearing house for waste electrical and electronic equipment might work still needs to be resolved in the UK, and poses a ma= jor timetable challenge, according to the DTI. Such an initiative was proposed by electrical goods manufacturers, who ar= e obligated to pay for the treatment, and recycling, of WEEE. Under the proposals, the clearing house would act as an interface between manufacturers, retailers and local authorities collecting WEEE, recyclers and government. RoHS -Expert advice on soldering Leadfreesoldering.com is a technical resource for design, process and quality engineers, manage= rs and procurement staff having to deal with the introduction of lead-free materials and assembly processes. Technical papers are available along wi= th training material, CDROM's, capability audits and engineering support dedicated to lead-free assembly and soldering, helping the transistion to lead-free production. RoHS - Farnell InOne approach to part numbering We have listened very carefully to our customers across Europe and Asia Pacific on what is a matter of some concern. Some would like all our orde= r codes to change while others request no change at all. However, our appro= ach reflects the views of the majority of our customers. Where a manufacturer introduces a new RoHS compliant version of a product and decides to change their part number, we will sell the product under a new Farnell InOne order code. Where there is no change to the functionality of the product and it can b= e soldered at the higher temperature required by lead-free solders, manufacturers will generally be keeping the same part number. In this instance Farnell InOne will not change their order code. Farnell InOne will not mark, identify or recommend any product as meeting the RoHS Directive until we are confident that it is fully compliant. RoHS - Evidence of compliance ERA Technology, who are working closely with the DTI on the matter of demonstrating RoHS compliance, have given Farnell InOne the latest update= : Evidence of compliance will only be required if an enforcement authority asks for it, but they will expect to see evidence that the "producer" has taken what will be regarded as "reasonable steps" to comply with the legislation. If the "producer" imports electrical and electronic equipment into the European Union then, in theory, he would ask his supplier for a declarati= on that the equipment complies. If the "producer" assembles equipment within the EU, then he should obtai= n a declaration for all the parts, components and materials he uses and this information would be stored in a technical file. One certificate or declaration is enough for each class or type of component. For example, all chip resistors of one type, irrespective of s= ize or value could be covered by one declaration as long as they have similar composition and all are RoHS compliant. This approach is already used by = the likes of ST Microelectronics, who have materials declarations on their web-site, one for each IC package type. NEW SUBSCRIBER Click here and provide your name and company name to sign up for our regu= lar RoHS updates direct to your inbox mailto:aumarketing@farnellinone.com?subject=3DRoHS%20NEW%20Subscr= iber%20NZ Where can I get more information? If you cannot find the answer to your query on our web-site, simply send your enquiry to: E-Mail nztechnical@farnellinone.com We have access to an ever increasing library of information from numerous sources that we can make available to you, including suppliers, governmen= t bodies, and various centres of excellence specialising in subjects such a= s solder, test, compliance etc. Send to a Friend If you know someone who may benefit from this issue please click on the l= ink below. 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