TIP: Choosing materials for HDI boards

The success of high-density designs heavily relies on the careful selection of appropriate HDI PCB materials that can considerably impact signal integrity, thermal management, and the overall performance of your design.

Consider these factors when you select dielectric materials:

  • Choose a material with a low dielectric constant (<4) for lesser signal distortion and propagation delays.
  • A lower dissipation factor (0.001) indicates lower energy loss in the substrate, ensuring reduced signal attenuation and quality preservation.
  • Higher thermal conductivity materials offer effective heat dissipation, preventing thermal hotspots and ensuring stable signal performance.

TIP: When you pick materials for HDI, you need to consider the operating frequency of your design.