Taking 3D IC Heterogeneous Integration Mainstream
By Tony Mastroianni and Todd Burkholder, Siemens Digital Industries Software
3DIncCtes | March 26, 2025
Over the last several years, chiplet-based heterogeneous package integration has emerged as a promising alternative to traditional monolithic package solutions; the so-called homogenous SoC design. 3D IC heterogeneous integration is a system approach, wherein what typically would be implemented as an SoC is disaggregated into solid, fabricated IP blocks; i.e., chiplets.
These chiplets typically provide a specific function implemented in an optimal chip process node. Several chiplets and an optional, custom SoC device can be mounted and interconnected in a single package using high-speed/bandwidth chiplet-to-chiplet interfaces. The resulting 3D IC heterogeneously integrated packages deliver greater performance at a reduced cost, higher yield, and have only a slightly larger area than a traditional monolithic SoC package.
This system-oriented approach, known as system technology co-optimization (STCO), differs from traditional IC design. STCO spans five significant activities that are both complex and sophisticated: architectural planning and analysis, functional design and test, physical design planning and verification, and electrical and reliability analysis.
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