Author Topic: Question on PCB stackup  (Read 1002 times)

0 Members and 1 Guest are viewing this topic.

Offline ppwleeTopic starter

  • Newbie
  • Posts: 1
  • Country: ca
Question on PCB stackup
« on: August 24, 2017, 08:38:07 pm »
Newbie here. Looking for feedback on the following stackup from one of our designer.

- 4 layer PCB, original design stackup shown below



- PCB fab shop has concerned about asymmetric core design and recommended a balance design with 0.5oz copper across all 4 layers

- 0.5mm Core/Prep is also not standard, hence 0.46mm was suggested

- as a result of the revised stackup, a 35um finished copper,  ~10% increase in trace width was suggested

Need help on:

1. Is there an obvious problem with the current stackup?

2. Our designer does not want any change on trace width (RF application), what would be our options?


Thank you in advance!
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf