Advanced IC Package Implementation and Verification
Applying structured package implementation and verification workflows to chiplet-based and 3D IC designs.
As advanced packaging technologies such as chiplet-based architectures and 2.5D/3D IC integration become mainstream, the complexity of package design and verification has increased significantly. This case study describes how a structured workflow enables early risk mitigation and reliable manufacturing handoff.
Challenge
Modern IC packages integrate multiple heterogeneous dies, each with different process technologies, power domains, and assembly constraints. Ensuring correct connectivity, manufacturability, and compliance across dies and layers is a significant technical challenge. Late error discovery often leads to costly redesign cycles.
Solution
A structured package implementation flow was established using an interactive physical design environment. Logical connectivity was translated into detailed physical geometry, including substrate stack-ups, redistribution layers, and die-to-die routing. Early in-design verification enabled rapid identification and correction of geometry and connectivity issues.
Workflow Overview
This workflow illustrates how package designs evolve from logical assembly to physical implementation, followed by early in-design verification. Final manufacturing readiness is ensured through sign-off-level 3D verification, clearly separating fast iterative checks from authoritative validation.
Verification Strategy
In-design verification provided fast feedback during implementation, while final manufacturing readiness was ensured through sign-off-level 3D verification. Design data was exported for comprehensive cross-die checking, alignment validation, and assembly rule verification.
Results
The combined approach significantly reduced late-stage errors and iteration cycles. Most design issues were resolved during early implementation, increasing overall development efficiency and confidence prior to manufacturing handoff.
Tools & Technologies
- Advanced IC Packaging (2.5D / 3D IC / Chiplet)
- Package Physical Implementation
- In-Design DRC and Connectivity Checks
- 3D Sign-off Verification
- OSAT Manufacturing Rules