I would suggest you get a copy of the classic Klein Wassink book 'Soldering in Electronics' (ISBN 0 901150 24X). Wave soldering SOICs, I would add extra pads at the trailing end of the IC connected to the last pads of the IC by fine tracks with no resist on. Neil -----Original Message----- From: Patrick Lam [mailto:[log in to unmask]] Sent: 23 October 2001 17:41 Subject: Re: Land pattern for wave soldering Hi Steve, Thanks for the prompt response. What kind of solder thieves should I put in, say a SOIC08? Do I need to put in leading pads and leading pads? Is there any standard published that I can find or buy regarding wave soldering issues? Thanks for the support. Patrick Steve Owen <[log in to unmask]> on 10/23/2001 09:03:04 AM Please respond to "TechNet E-Mail Forum." <[log in to unmask]> To: [log in to unmask] cc: (bcc: Patrick Lam/SEL) Subject: Re: [TN] Land pattern for wave soldering Hi Patrick, If you look at say a side one footprint(reflow)for quad flat pack as opposed to a side two (wavesolder)side. On side two you will ideally need to present the component @ 45 deg to the wave and have solder thieves in each of the four corners to eliminate solder bridges. just an example. hope its of some use. -----Original Message----- From: Patrick Lam [mailto:[log in to unmask]] Sent: 23 October 2001 16:26 To: [log in to unmask] Subject: [TN] Land pattern for wave soldering Hi Technetters, Is there a need to have different SMD land size/ pattern for wave soldering? Any suggestion is appreciated. Thanks, Patrick ##################################################################################### Attention: This message is for the named person's use only. It may contain confidential, proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you receive this message in error, please immediately delete it and all copies of it from your system, destroy any hard copies of it securely and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. STADIUM GROUP PLC and any of its subsidiaries each reserve the right to monitor all e-mail communications through its networks. Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorised to state them to be the views of Stadium Group Plc. or one of its subsidiaries. Although this message has been scanned by MailMarshall for known viruses and inappropriate content, we recommend that recipients employ appropriate measures on their systems to intercept any such material. Thank You - Stadium Group Plc., IT Department - Tel: +44 (0)1429 266544 ##################################################################################### --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------