HelloTechNetters, at first please apologize crossposting in DC, Technet, PCD list. Has anybody experiences (layout, assembly, soldering, reliability) with SANYO E-CSP packages? These are very very small packages for discrete semiconductors, little cubes with three Au plated pads invisible on the bottom side. The type E-CSP 1006 is about 1 mm long, 0.6 mm wide and 0.5 mm high, the "big" pad is 0.5 mm x 0.275 mm, the two smaller pads are 0.15 x 0.275 mm, distance is about 0.2 mm. My questions: Any experiences with layout (pad sizes?), solder paste dispensing or printing (or any other methods for solder deposit - pre-tinning, SIPAD, HighPAD etc.), with reflow soldering, rework and long term reliability (preferred automotive temperature range). SANYO has only this one URL with rather poor informations: http://semic.sanyo.co.jp/english/news/801210tr-e.html no app-notes, no dimensioned drawings, no links to any documentation. A customer (a burn-in and test lab) got these parts without many comments on his desk "fry them at 200° C over 1000 hours or til they are dead, what ever happens first" and now he needs any solution to get this stuff more or less reliable on some burn-in boards. Any help is highly appreciated.. Regards Matthias Mansfeld ----------------------------------------------- Matthias Mansfeld Elektronik * Printed Circuit Board Design and Assembly Am Langhoelzl 11, D-85540 Haar, GERMANY Phone: +49-89-4620 0937, Fax: +49-89-4620 0938 E-Mail: [log in to unmask] Internet: http://www.mansfeld-elektronik.de ############################################################## TechNet Mail List 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://www.ipc.org/html/forum.htm) for additional information. If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or 847-509-9700 ext.5365 ##############################################################