Re: [PEDA] SMD footprints for wavesoldering
Peder, you can find some information about semiconductor footprints here (Philips): http://www-us8.semiconductors.com/acrobat/various/SC01_MOUNTING_1996_1.pdf R.Molitor Ing.Buero i2e Remscheid / Germany -Ursprüngliche Nachricht- Von: Peder K. Hellegaard [EMAIL PROTECTED] An: Protel EDA Forum [EMAIL PROTECTED] Gesendet: Donnerstag, 7. März 2002 21:18 Betreff: [PEDA] SMD footprints for wavesoldering Anybody who knows where to find SMD footprints for wavesoldering ? If anyone already has Protel-libraries containing such footprints I would be most appreciated to receive a copy. Peder * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/proteledaforum@techservinc.com * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
[PEDA] SMD footprints for wavesoldering
Anybody who knows where to find SMD footprints for wavesoldering ? If anyone already has Protel-libraries containing such footprints I would be most appreciated to receive a copy. Peder * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/proteledaforum@techservinc.com * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Re: [PEDA] SMD footprints for wavesoldering
On 09:18 PM 7/03/2002 +0100, Peder K. Hellegaard said: Anybody who knows where to find SMD footprints for wavesoldering ? If anyone already has Protel-libraries containing such footprints I would be most appreciated to receive a copy. Peder Peder, I think there was supposed to be a commercial library supplier that had soldering technology aware libraries - it was stated to me as a better alternative to the IPC libraries. Sorry but I can't remember their name - something like SMC-plus or SBC-plus or something from very vague memory. Maybe someone else who gets the PCB design magazines will know what the name is. I have built my wave and reflow libraries up mostly from the Philips data books (for the passives and small semis) and some other sources over time and a bit of trial and error. They are not, unfortunately, in an organised fashion that they could be released. The Philips info I used is possibly somewhat dated now days - I am not sure if they have kept it up to date. The main thing about the SO packages is the solder thieves - in order to minimise the space taken up by the thieves my libraries have the last pad on each row double in width and its centre adjusted to keep the pad spacing the same as the other inter-pad gaps. This has worked well for many years and all the manufacturers have said it worked OK. But...the pain is that when you rotate a package 180 degrees for layout reasons you have to manually twiddle four pads (two to make thinner and bring back in, and fatten and move out two). But since it is a fairly simple process to do I s'pose a server could be written to do it if I ever had enough of them to do to worry about it. A long time ago I was suggesting that Protel had improved support for soldering technologies - including automatic switching of thieves as one rotated a component. The design rule that restricts component rotation is useful for checking that wave solder side component orientation is correct .. as long as you have designed your library components with some consistency. I would like extended rules that include wave solder side(s), solder direction, automatic indication of any components with poor orientations, possibly even rules that check for shadowing by tall components (if the 3D viewer is to be improved then component heights can be entered into the system) etc. I would like the ability in the PCB library to have multiple decal designs associated with one footprint which can then be associated with layers so as a component was swapped from one layer to another it (optionally of course) automatically choose the correct decal and oriented the thieves according to the nominated wave direction (if the component is on a wave solder side) etc. But as wave soldering becomes less common maybe all this is not so much an issue as it was a few years ago. Ian Wilson * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/proteledaforum@techservinc.com * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Re: [PEDA] SMD footprints for wavesoldering
Ian, Peder, the company you are trying to recall must be SMT-Plus. They are at: http://www.smtplus.com/ However, as a subscriber to their library support I have noticed there are not a great number of patterns in the existing library for wave soldering. They will create new patterns for subscribers but you will need to discuss your needs in depth with themto assure you are happy. Sincerely, Brad Velander. Lead PCB Designer Norsat International Inc. Microwave Products Tel (604) 292-9089 (direct line) Fax (604) 292-9010 email: [EMAIL PROTECTED] http://www.norsat.com See us at Booth 323 at Satellite 2002 in Washington, DC March 6-8. -Original Message- From: Ian Wilson [mailto:[EMAIL PROTECTED]] Sent: Thursday, March 07, 2002 2:21 PM To: Protel EDA Forum Subject: Re: [PEDA] SMD footprints for wavesoldering Peder, I think there was supposed to be a commercial library supplier that had soldering technology aware libraries - it was stated to me as a better alternative to the IPC libraries. Sorry but I can't remember their name - something like SMC-plus or SBC-plus or something from very vague memory. Maybe someone else who gets the PCB design magazines will know what the name is. snip Ian Wilson * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/proteledaforum@techservinc.com * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
