At 16:14 19.07.02 +0200, you wrote: >In my next Design i am planning to use the Cypress CY62157CV33 witch comes >in a FBGA BA48F Footprint. > >What are the recomendations for a footprint ? The Datasheet does not give a >hint it only tells me where the "balls" are but not what diameter the top >layer pads should have. the balls are 0.3mm diameter. what should the >correct dogbone look like ?
Have you tried to ask the supplier of the part? I haven't often and had different success. Some have nothing, some very detailed drawings (e.g. Murata). Nobody knows how they are not in the datasheet! Edi Im Hof >Is there any doc avail that explains how the right footprint for a FBGA >should look like ? > >Any help is welcome > >Dipl.-Ing. (FH) Michael Schmitt >Baumer Ident GmbH >Entwicklung / Development Department >Hertzstr. 10 >D-69469 Weinheim >Deutschland / Germany >Tel. +49 (0) 6201 9957 - 30 >Fax. +49 (0) 6201 9957 - 99 >E-Mail : [EMAIL PROTECTED] >Web: <http://www.baumerident.com/> > > >************************************************************************ >* Tracking #: 2B7AD000EEDB4F428A043830770F61CDEC774054 >* >************************************************************************ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ + IH electronic + Phone: ++41 52 320 90 00 + + Edi Im Hof + Fax: ++41 52 320 90 04 + + Doernlerstrasse 1, Sulz + URL: http://www.ihe.ch + + CH-8544 Rickenbach-Attikon + E-Mail: [EMAIL PROTECTED] + + Switzerland + + ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 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/[email protected] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
