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]
