Hi Dennis, The component manufacturers are the early adopters of the spec and are going lead-free because they do sell worldwide and in the EU... also if you are going to assemble your boards with lead-free paste you don't want to contaminate the weld with tin/lead solder. So either way, the components have to change first. As I hear it, they will be all lead free very soon, much before the deadline of 2006.
Bill Brooks - KG6VVP PCB Design Engineer , C.I.D.+, C.I.I. Tel: (760)597-1500 Ext 3772 Fax: (760)597-1510 e-mail:[EMAIL PROTECTED] http://www.dtwc.com http://pcbwizards.com -----Original Message----- From: Dennis Saputelli [mailto:[EMAIL PROTECTED] Sent: Monday, December 06, 2004 10:39 AM To: Protel EDA Discussion List Subject: Re: [PEDA] Lead free re design thanks Bill i will look over your links many of the commodity passive components i am receiving (without specifically ordering such features) are marked 'lead free' ds _______________________________________________________________________ Integrated Controls, Inc. Tel: 415-647-0480 EXT 107 2851 21st Street Fax: 415-647-3003 San Francisco, CA 94110 www.integratedcontrolsinc.com Brooks,Bill wrote: > Hi Dennis... > > There are many people talking about the effects of the EU mandate to move to > lead-free assembly of PCB's. If you have not heard they in essence banned > all lead containing electronics from coming into their countries. If you > have visited the IPC sites you might want to check out their Lead Free, > Technet and the IPC Designers Council listservers for more discussion on the > topic... > > http://www.ipc.org/contentpage.asp?Pageid=4.3 > > > Although I have not gone through it yet, the IPC has a website for the Pb > free topic at http://leadfree.ipc.org/ > > Also there is a website for Lead-free called http://www.lead-free.com/ > > As far as my research has told me, the biggest impact to most western > suppliers will be those that must do business in the EU. There is no lead > free requirement to sell products in the US or most of the 3rd world for > that matter. Also the reliability of the process is still in question and > needs to be proven with exhaustive testing. > > Pb free components have mostly been Pb free all along... but it's a great > marketing ploy to get folks to buy their components... There are some that > have switched processes and soon you will have a hard time finding parts > that have lead in them at all. > > That will not make them incompatible with normal solder... as long as you > don't have a customer in the EU you can still use the tin/lead soldering > process on 'lead-free' parts. > > Changing over to the Lead free assembly process will be expensive. It will > drive the price of electronics higher and the reliability lower according to > some that have spoken on the subject. > > I would advise caution and lots of reading before heading down that road... > there are seminars and events planned for 2005 that will focus on the > subject, and it would be wise to attend some and see what issues there are > that could affect your business. > > Best regards, > > > Bill Brooks - KG6VVP > PCB Design Engineer , C.I.D.+, C.I.I. > Tel: (760)597-1500 Ext 3772 Fax: (760)597-1510 > e-mail:[EMAIL PROTECTED] > http://www.dtwc.com > http://pcbwizards.com > > > -----Original Message----- > From: Dennis Saputelli [mailto:[EMAIL PROTECTED] > Sent: Monday, December 06, 2004 9:35 AM > To: Protel EDA Discussion List > Subject: Re: [PEDA] Lead free re design > > > i may have posted this before but don't recall an answer > > someone has asked me if there are *design* issues re pc bd designs and > the movement to lead-free > > i said i didn't think so, but then i wondered about the elevated > temperatures and surface finsishes > > what is the proper call out for surface finish of a pcb for lead free ? > and are there any actual design issues (as opposed to call-out issues) > > and also > can you use the new lead free components in a standard 'lead-full' > process ? (thanks for 'lead-full' Ivan) > > and what about cleaning under CSPs and BGAs ? > is the standard water based OA fluz a problem ? > seems like it would be > > Dennis Saputelli > > _______________________________________________________________________ > Integrated Controls, Inc. Tel: 415-647-0480 EXT 107 > 2851 21st Street Fax: 415-647-3003 > San Francisco, CA 94110 www.integratedcontrolsinc.com > > > Dale Broemer wrote: > >>What a complete waste of my time. I wonder how many users we loose on >>this list that get tired of reading such off topic junk! I'm ready to >>leave myself! I'm much too busy to read anything other than what may >>benefit my use of protel from this list!!! >> >>Please......! >> >>Dale >> >>-----Original Message----- >>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] >>On Behalf Of [EMAIL PROTECTED] >>Sent: Monday, December 06, 2004 8:34 AM >>To: [EMAIL PROTECTED] >>Subject: RE: [PEDA] Cannot locate server initialization file:, >>Answer2053 >> >>Exactly what has your rambling dissertation on voting got to do with >>Protel, Mr Lomax? As self-proclaimed and self-appointed chairman of the >>Protel User's Group, I would think you'd have a little more respect for >>the purpose of this group than to use it once again for your droll, >>pedantic dissertations. >> >> >> >>>-----Original Message----- >>>From: [EMAIL PROTECTED] >>>[mailto:[EMAIL PROTECTED] On Behalf Of Abd ul-Rahman Lomax >>>Sent: Sunday, December 05, 2004 1:26 PM >>>To: Protel EDA Discussion List >>>Subject: Re: [PEDA] Cannot locate server initialization file:, >>>Answer2053 >>> >>>At 04:15 PM 12/3/2004, Bagotronix Tech Support wrote: >>> >>> >>>>BTW, this "incrementing as an unsigned integer, but treating as a >>>>signed integer" was the cause of some electronic voting machines >>>>counting up to >>>>32767 votes, and the next vote cast set the count back to -32768. >>>>Since there was no paper ballot as a backup, there was no way >>> >>>to recount. >>> >>> >>>>Wonderful, eh? >>> >>>It seems to have worked for someone.... >>> >>>It would not be necessary to recount until about 65K votes had >>>been accumulated, since all that would be needed would be >>>reinterpreting the output. In fact, presumably it would be >>>quite simple to distinguish between >>>1 vote and 65537, so quite a lot of votes would have to be >>>accumulated before it was an unrecoverable situation. >>> >>>I would not think that the problem was with individual voting >>>machines but with a system used to accumulate results from >>>voting machines, since a single voting machine would not >>>ordinarily have anywhere near so many votes cast on it. And >>>presumably the individual machine results were preserved. >>>If not, truly an insane system, where any breakdown anywhere >>>trashes the results. No-paper-trail voting is totally insane, >>>and, in fact, high-tech voting not involving simple paper >>>ballots is likewise crazy, unless you want to be able to >>>manipulate the totals without making it easy to detect; >>>(Insane, or crazy like a fox?) >>> >>>I just look this up and, yes, the problem was with a >>>tabulator, not with voting machines, per se. >>> >>>What is so hard about running a marked ballot through a cheap >>>scanner feeding a simple computer (i.e., the kind that are >>>being tossed every day) in order to count them, keeping the >>>paper ballots if the results are challenged? >>> >>>Well, let me think.... (1) it would not create new business >>>for the cronies of those in power. (2) it would not make it >>>easier to manipulate the results. (3) newer, higher tech, is >>>better, isn't it? >>> >>>My town (population approx 1000) still uses paper ballots >>>which are then fed into a device which is essential a box with >>>a hand crank so that you can only put ballots in, you can't >>>take them out without unlocking the back of the box. I think >>>the device is well over a hundred years old. Votes are then >>>tallied by hand and reported by the town clerk. Yes, I've seen >>>ballot-counting problems in the town, but that is not a >>>function of the technology but of carelessness on the part of >>>town officials. The solution is not thousands of dollars for >>>equipment but a little thought put into how ballots are counted. >>> >>>www.beyondpolitics.org >>> >>> >>> >>> >>> >>>____________________________________________________________ >>>You are subscribed to the PEDA discussion forum >>> >>>To Post messages: >>>mailto:[EMAIL PROTECTED] >>> >>>Unsubscribe and Other Options: >>>http://techservinc.com/mailman/listinfo/peda_techservinc.com >>> >>>Browse or Search Old Archives (2001-2004): >>>http://www.mail-archive.com/[email protected] >>> >>>Browse or Search Current Archives (2004-Current): >>>http://www.mail-archive.com/[email protected] >>> >>> >> >> >> >>____________________________________________________________ >>You are subscribed to the PEDA discussion forum >> >>To Post messages: >>mailto:[EMAIL PROTECTED] >> >>Unsubscribe and Other Options: >>http://techservinc.com/mailman/listinfo/peda_techservinc.com >> >>Browse or Search Old Archives (2001-2004): >>http://www.mail-archive.com/[email protected] >> >>Browse or Search Current Archives (2004-Current): >>http://www.mail-archive.com/[email protected] >> >> >> >>____________________________________________________________ >>You are subscribed to the PEDA discussion forum >> >>To Post messages: >>mailto:[EMAIL PROTECTED] >> >>Unsubscribe and Other Options: >>http://techservinc.com/mailman/listinfo/peda_techservinc.com >> >>Browse or Search Old Archives (2001-2004): >>http://www.mail-archive.com/[email protected] >> >>Browse or Search Current Archives (2004-Current): >>http://www.mail-archive.com/[email protected] >> >> >> > > > > > ____________________________________________________________ > You are subscribed to the PEDA discussion forum > > To Post messages: > mailto:[EMAIL PROTECTED] > > Unsubscribe and Other Options: > http://techservinc.com/mailman/listinfo/peda_techservinc.com > > Browse or Search Old Archives (2001-2004): > http://www.mail-archive.com/[email protected] > > Browse or Search Current Archives (2004-Current): > http://www.mail-archive.com/[email protected] > > > ____________________________________________________________ > You are subscribed to the PEDA discussion forum > > To Post messages: > mailto:[EMAIL PROTECTED] > > Unsubscribe and Other Options: > http://techservinc.com/mailman/listinfo/peda_techservinc.com > > Browse or Search Old Archives (2001-2004): > http://www.mail-archive.com/[email protected] > > Browse or Search Current Archives (2004-Current): > http://www.mail-archive.com/[email protected] > > ____________________________________________________________ You are subscribed to the PEDA discussion forum To Post messages: mailto:[EMAIL PROTECTED] Unsubscribe and Other Options: http://techservinc.com/mailman/listinfo/peda_techservinc.com Browse or Search Old Archives (2001-2004): http://www.mail-archive.com/[email protected] Browse or Search Current Archives (2004-Current): http://www.mail-archive.com/[email protected] ____________________________________________________________ You are subscribed to the PEDA discussion forum To Post messages: mailto:[EMAIL PROTECTED] Unsubscribe and Other Options: http://techservinc.com/mailman/listinfo/peda_techservinc.com Browse or Search Old Archives (2001-2004): http://www.mail-archive.com/[email protected] Browse or Search Current Archives (2004-Current): http://www.mail-archive.com/[email protected]
