something-big-is-coming.jpg

3 posts / 0 new
Last post
hqf2013
Offline
Last seen: 1 week 4 days ago
Joined: 2018-09-13 07:15
Vias for WLCSP34

Hi Dialog,

I need more then 6 IO pins for my application with the WLCSP footprint. Since micro vias, i.e. 0.1mm Φ, are expensive here, is it possible to use normal vias (0.2 mmΦ)in the WLCSP empty area as shown in this figure?

Attachment: 
Device: 
PM_Dialog
Offline
Last seen: 19 min 50 sec ago
Staff
Joined: 2018-02-08 11:03
Hi hqf2013,

Hi hqf2013,

Placing vias at the left open places is a little bit risky. We left those positions open by purpose, because RF inductors are placed at this position on the die. So, strongly recommend you to NOT use either micro vias or normal vias in those positions.

Thanks, PM_Dialog

hqf2013
Offline
Last seen: 1 week 4 days ago
Joined: 2018-09-13 07:15
Ok. Thank you for reminding

Ok. Thank you for reminding me.