3D Interconnect Designer: Physically Accurate Design and Exploration of Advanced 2.5D and 3D Interconnects

As advanced heterogeneous integration becomes a central strategy for high-performance computing, AI accelerators, networking devices, and advanced SoCs, engineering teams are increasingly adopting complex 2.5D and 3D packaging architectures. These designs integrate multiple chiplets, high-speed interfaces, and dense interconnect fabrics within advanced packaging technologies such as silicon interposers and multi-die substrates. While these architectures enable unprecedented performance and integration density, they also introduce significant design complexity.

During the early stages of development, system architects, packaging engineers, and signal integrity specialists must make foundational decisions that determine the feasibility and performance of the final design. Choices related to interface architecture, grounding strategies, bump map organization, and routing topology directly influence bandwidth, signal integrity, power delivery, and overall system reliability. However, these decisions are often made without sufficient physically realistic insight into how interconnect structures will behave electrically or whether routing can be successfully implemented.

As a result, critical issues—including impedance discontinuities, coupling between high-speed channels, return-path interruptions, or routing congestion—may remain hidden until late in the design process. When these problems surface during detailed layout or verification, resolving them frequently requires major architectural changes that increase cost, delay schedules, and introduce project risk.

Keysight 3D Interconnect Designer addresses this challenge by providing a physically aware environment for early exploration and validation of advanced interconnect architectures. The solution enables engineering teams to model and analyze complex 2.5D and 3D connectivity structures during the architecture phase, before committing to detailed physical implementation.

By introducing realistic electrical awareness early in the design workflow, the platform allows teams to evaluate routing feasibility, grounding strategies, and interconnect topologies while still operating in a flexible architectural design stage. Engineers can quickly explore multiple interface configurations, visualize routing constraints, and identify potential signal integrity challenges long before layout begins.

This early validation helps organizations shift risk discovery to the earliest and most adaptable stage of development. Instead of discovering impedance mismatches, coupling effects, or return-path discontinuities after layout — when design changes are expensive — teams can identify and resolve these issues during architectural exploration.

By enabling earlier insight into both electrical behavior and routing feasibility, 3D Interconnect Designer helps organizations create more predictable development cycles and accelerate time-to-market for advanced heterogeneous systems.