Heterogeneous Circuit PDN Model Generation for Voltage Drop Analysis
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Solution Overview
Problem
Current technologies lack the ability to effectively model and analyze power distribution networks (PDN) for heterogeneous circuits, which integrate digital and non-digital circuits, leading to challenges in digital design processes and voltage drop analysis, and existing methods do not protect intellectual property information.
Innovation Solution
A method and device for generating a PDN model of heterogeneous circuits by determining horizontal and vertical power lines, assigning power consumption values, and adjusting the model to meet target voltage drop limitations, while performing digital system voltage drop analysis and adjusting the PDN accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a complete PDN model is used for heterogeneous circuits, then analysis accuracy is improved, but analysis time increases significantly
Solution Approach 1:
The patent segments the heterogeneous circuit into digital circuit portions and non-digital circuit portions, creating separate PDN models for each. This allows the complex heterogeneous circuit to be analyzed by combining results from simpler, separate models rather than analyzing the complete system at once, thus maintaining accuracy while reducing overall analysis time.
Solution Approach 2:
The patent creates a simplified PDN model that copies only the essential electrical characteristics of the heterogeneous circuit without replicating its complete complexity. This copied model is sufficient for voltage drop analysis purposes, achieving the necessary accuracy while dramatically reducing analysis time compared to a complete model.
2Adaptability or versatility
If technology for modeling heterogeneous circuit PDN is developed, then integration capability is improved, but device complexity increases
Solution Approach 1:
The patent develops a universal PDN modeling approach that can handle both digital and non-digital circuits through the same methodology. The system uses standard extraction and analysis techniques that work across different circuit types, improving integration capability without requiring separate complex tools for each circuit type.
Solution Approach 2:
The patent extracts only the necessary PDN characteristics from heterogeneous circuits that are relevant for voltage drop analysis, rather than modeling the entire circuit behavior. This extraction approach enables integration of heterogeneous circuits while keeping the modeling complexity manageable by focusing only on essential electrical properties.
3Loss of information
If heterogeneous circuit PDN model is generated before synthesis, then intellectual property protection is improved, but simulation accuracy may be compromised
Solution Approach 1:
The patent creates a simplified copied model of the heterogeneous circuit PDN that captures essential electrical characteristics without requiring access to the complete detailed design. This copied model enables accurate voltage drop analysis while protecting intellectual property, as it contains only the necessary electrical properties rather than full design information.
Solution Approach 2:
The patent transforms the heterogeneous circuit into a PDN model using specific extraction parameters and assumptions that preserve voltage drop characteristics while removing sensitive design details. By changing the representation parameters from detailed circuit geometry to equivalent electrical properties, the system achieves both IP protection and analysis accuracy.
Data Source
AI summary
A method for generating a power distribution network (PDN) is provided. A heterogeneous circuit data is input. A plurality of horizontal power lines and a plurality of vertical power lines are determined according to the heterogeneous circuit data. A PDN model of the heterogeneous circuit is determined according to the horizontal power lines and the vertical power lines. Power consumption value is assigned to a plurality of internal nodes of the PDN model of the heterogeneous circuit. The PDN model of the heterogeneous circuit is adjusted to meet a target voltage drop limitation of the heterogeneous circuit data.