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[Moved]: BGA package on Flex PCB?

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Abhishekabs

Abhishekabs

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Hello,
Can we use BGA packages ( >300 pins up to 600 pins) with Flex PCB technology?

Does any one know maximum possible layers flex PCB can go up to?

Any supplier recommendations?


Thanks
 

For compact systems where multiple PCBs are needed, flex PCB is one of the option.
I do not know if integration of BGA >300 pins is possible or not?
Has any one observed this?
 

You would have to do a flexi-rigid PCB, the BGA and related components on the rigid areas, with flexible limbs. How many layers, I have done 6-16 layer felxi-rigid's and I know of at least 2 28 layer boards of this nature.
Download this book and have a look, also other online flex design guides.
 

Mounting BGA on flex PCB isn't strictly impossible but IMO not reasonable. You'll rather go for flex-rigid design with BGA on rigid part. Similarly you won't use more flex layers than required for interconnect.
 

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