ASE Embedded Die Substrate technology

System-in-Package

Embedded Die Substrate

ASE embeds active semiconductor dies within organic laminate or leadframe structures, freeing surface area and shortening electrical and thermal paths for compact power, connectivity, sensor, optical, and automotive modules.

What is an embedded die substrate?

Instead of mounting every die on top of a substrate, the semiconductor is placed inside laminated PCB material or a leadframe as the substrate is formed. Copper-plated vias and traces then connect the embedded device to MEMS, passives, and other surface components.

ASE combines substrate design and manufacturing with packaging and test to provide a turnkey embedded-die service.

Features diagram
P1 Structure diagram

Advantages of embedded die packaging

  • More surface area for components or a smaller overall module
  • Three-dimensional design flexibility
  • Shorter interconnects with lower parasitic loss
  • Improved electrical and thermal resistance
  • Mechanically robust copper interconnections
P2 Structure diagram
P3 Structure diagram

ASE embedded die offerings

ASE a-EASI embedded die package

Advanced Embedded Active System Integration

a-EASI

A leadframe-based option for power electronics, with direct copper-via paths, strong heat dissipation, EMI benefits, and flexible BGA, LGA, or QFN footprints.

  • MOSFET, IGBT, regulator, and DC/DC modules
  • Up to 100 I/Os
  • Options for exposed-pad and multi-die structures

Semiconductor Embedded in Substrate

SESUB

A thinned IC is embedded in a laminated substrate that can carry additional components, creating compact, multifunction modules for connectivity, power, sensor, memory, and ADAS products.

  • Up to 1,000 I/Os
  • Multi-die embedding
  • Low profile with robust copper connections
Features diagram