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Fine pitch BGA routing

Mohan , 04-30-2021, 08:47 AM

I am using the 109 WLP version of MAX32666 in my design. The pitch of this IC is 0.35 mm and I am having a hard time doing the BGA fanout. Is there any fanout examples for a 109 WLP IC with 0.35 mm pitch I can use as reference? What is the recommended layer count, via size, track width and spacing for this density? Please help me out. I am attaching the datasheet and the package outline incase the link does not work.

Thanks & Regards
Mohan Prabhakar
robertferanec , 05-03-2021, 02:07 AM
I found this, it may help:

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