A Method for Making Single-Sided or Asymmetrical Build-Up IC Package Substrates by Using Dielectric Seal and Sacrificial Injection Molded Plastic Picture Frames
Publication Date: 2002-Mar-06
The IP.com Prior Art Database
Disclosed is a method that uses dielectric films and picture frame plastic to temporarily join core panels of two substrates prior to adding symmetric build-up layers on both sides of the combined core panels. Benefits include minimizing the cost of the substrate by reducing the number of layers.