Automated RDL Power Rail Generator for Semiconductor Layouts
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Solution Overview
Problem
The complex routing of power connections through redistribution layers in semiconductor packages, which involves tens of thousands of nodes for power supply and ground reference levels, is inefficient and time-consuming, taking weeks or months to manually generate layout masks.
Innovation Solution
An automated redistribution layer (RDL) power rail generator is used to automatically create layout masks for signal routes of power connections within redistribution layers, utilizing a graphical user interface or scripting languages to define attributes, select metal layers, and perform design rule checks, thereby streamlining the process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual routing of power connections through redistribution layers is performed, then routing accuracy and design verification can be ensured, but the process takes weeks or months and significantly reduces productivity
Solution Approach 1:
The patent replaces manual mechanical routing operations with an automated computer-based system that uses algorithms to generate power connection routes through redistribution layers. The system automatically processes design parameters, performs routing calculations, and generates layout masks without manual intervention, thereby maintaining routing accuracy while dramatically improving productivity.
2Reliability
If complex power connection routing is manually performed before verification, then design validation can be achieved, but the extended timeline delays fabrication and reduces overall development efficiency
Solution Approach 1:
The patent implements preliminary automated routing actions that generate power connection layouts before fabrication, incorporating verification checks within the automated process. The system performs routing and validation in an integrated manner, ensuring design reliability while eliminating the time loss associated with sequential manual processes.
3Quantity of substance
If tens of thousands of power nodes are routed manually through redistribution layers, then comprehensive power distribution can be achieved, but the complexity and time required for manual routing becomes unsustainable
Solution Approach 1:
The patent enables the routing system to serve itself by implementing automated algorithms that independently handle the complexity of routing tens of thousands of power nodes. The system automatically manages routing decisions, verifies connections, and generates layouts without requiring manual intervention, thereby managing high node quantities while reducing perceived complexity for designers.
Data Source
AI summary
A system and method for automatically generating layout masks of power rails within redistribution layers of a semiconductor package are described. In various implementations, a user defines attributes to use for automatic power rail generation in the redistribution layers. The circuitry of a processor of a computing device used by the user executes instructions of a redistribution layer (RDL) automated power rail generator, which is referred to as the power rail generator. The power rail generator uses the attributes and a copy of the RDL netlist of the signal routes within the RDL to generate RDL mask layout data representing the signal routes of the power rails within the RDL. The processor generates the power rails for a significantly large number of signal routes in the RDL based on the received data such as the attributes that allow the user to customize the automatic generation.