IPC support, I would like the exact formula used for generating the chip resistor land pattern values for IPC-SM-782 manual. If the formula does not reside in the SM-782 spec, please E-mail it, Fax it, or explain how I could get ahold of it. FYI - From looking through IPC-SM-782 manual (published in 1996) I don't find a straight forward formula for a chip resistor. In your IPC-D-275 publication (dated September 1991) I find a formula for chip resistors within section 5.3.4.3 that's very clear. Upon using this formula, when I plug in values from SM-782 subsection 8.1, heading 4.0, for the 1206 chip resistor, results doesn't match the land pattern dimensions supplied on the following page. If you have any questions.. please E-mail, or call me. - Thanks for your help.... Al Arellano E-mail = [log in to unmask] Phone = (303) 581 2407 FAX = (303) 581 9973 ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################