Lesson 1 assignment 2 question, placing components under bga

[Kfir2020]

Hi,
In lesson 1 assignment 2 I've asked to place components under the bga,
I stated with the decoupling capacitor but because they mostly 0603 and 0805 i can't fit all off them,

My question is can i fit the 0805 around the bga and some of the 0603 for save space to future vias?

Or Robert just means to put them under without considering space for via and route?

Thanks in advance,
Kfir Maymon.

[robertferanec]

It is done in two steps, first, you just place the capacitors there to see how much space you need for them and where you still will have some free space. Then it is moved away and done again.

Capacitors should fit as it is done on the final module. Just, it is not simple to do.

PS: the smallest capacitors should be under the pins, the bigger ones can be a little bit further if there is no space - it will be all explained in the lessons.