EMI rookie.

Hi All,
There is a 2mA current peak on my design when its power turn
on, even this product runs OK, should I consider it
into MOS-level or PCB level effect?

There are too much unsatisfy EMI point, I am a rookie on EMI, could you
please advice.

After surfing google, I found a lot of bead / choke / capacitor /...


Could you please recommand book or subject ( electromagnet ?) ?

Thank you very much.

Best regards,

Boki.