• 易迪拓培训,专注于微波、射频、天线设计工程师的培养
首页 > ADS > ADS FAQ > How do I deal with metals that intrude into multiple dielectric layers

How do I deal with metals that intrude into multiple dielectric layers

录入:edatop.com    点击:

I am working with a technology where a metal layer, intruding into the dielectric is often either A) exactly as thick as the dielectric layer or B) thicker than the dielectric layer, and intrudes into 2 or 3 dielectric layers.

I don't know how to do either of these. For a), I thought simply using intrude would work, but it does not, as the intrude is the same size as the dielectric, which is not allowed. (the intrusion depth must be strictly smaller than the dielectric thickness)

As a result, B also does not work. For B) I was told to try using vias, and mapping the top and bottom metals and then connecting them with vias. However, I don't know how to map multiple operations (in this case two intrudions and one via) to the same mask.

I think the via approach is viable. I don't think you need to use intrusion; you can define the signal layers as sheet conductors and connect them with a via, as you mentioned. (You can make the via X-Y dimensions equal to the conductor X-Y dimensions if desired.)

Hello,

I agree on the via approach. In my appnote on conformal passivation for RFIC conductors, I also map one conductor layer as a metal via so that they can pass through multiple dielectrics. This gives you exactly what you need: a thick conductor that isn't limited in thickness.

I don't see a need to map "the top and bottom metals and then connecting them with vias", because the single metal defined as a conductor via can do it all in once.

Good luck

Volker

http://muehlhaus.com/support/ads-application-notes/ads-fem-3d-passivation:Dr. Mühlhaus Consulting & Software GmbH » EM models with full 3D Passivation for FEM simulation

申明:网友回复良莠不齐,仅供参考。如需专业帮助,请学习易迪拓培训专家讲授的ADS视频培训课程

上一篇:What are strings with CMP in spice.iff file meant?
下一篇:How to set up a two-layer PCB without a ground plane on ADS

ADS培训课程推荐详情>>

  网站地图