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Any tip for layout board with BGA?

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bluecube

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Any tip for layout my first board that use BGA? Using Orcad
 

joco

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BGA designs

Most semiconductor manufactures has their own succestions to designing rules for BGA components. There is no general rules for BGA's. Take a look to Xilinx and Altera web sites. Both has very good application notes for PCB layout.

~joco~
 

yayawoo

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You can also check out Motorola. They have a pretty good app note on BGA fanout and some routing technique.
 

tlp71@hotmail.com

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i think that this is depending from whic kind of bga you use.
All Device manifacturer have a fully documentation about our devices.
G.
 

ted

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The BGA packages are (generally speaking) quite standardized, and the industry has already a lot of experience of different issues. Therefore one can often adapt from one producer's recommendations to some other producer's devices. Differences in recommendations are usualy very small, if the packages are with identical parameters. Just check carefully that your package has same solder ball dimensions, pitch etc. than the one described in the document.

Also, it is generally good to talk with the PCB assembly people. Note also that such things as optical positioning markers, which are not directly related to the package but more to equipment used for mounting, are also important.

Some relevant documents:
http://www.actel.com/docs/sockets/RecPCBdesign.pdf
http://www.ee.up.ac.za/~justin/datasheets/Altera_DatabookDec98/WP/BGAWP.PDF
http://www.fairchildsemi.com/an/AN/AN-5026.pdf
http://ohm.bu.edu/bmc/asd/tester/xapp157.pdf

Good luck,
Ted
 

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