Combined IC Cell Layout for Decoupling and Antenna Functions
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Solution Overview
Problem
The ongoing trend in miniaturizing integrated circuits (ICs) poses challenges in efficiently utilizing space while maintaining performance, as existing approaches often separate cells configured as decoupling capacitors and antenna diodes from primary functional circuits, leading to increased device size and potential performance issues.
Innovation Solution
The integration of a first portion configured as a primary functional circuit, such as a level shifter, and a second portion configured as a secondary functional circuit, such as a decoupling capacitor or an antenna diode, within the same IC cell, thereby reducing overall IC device space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If decoupling capacitors and antenna diodes are separated from primary functional circuits, then device functionality is ensured, but IC device space increases
Solution Approach 1:
The patent combines decoupling capacitors and antenna diodes with primary functional circuits into integrated IC cells. The layout method merges previously separate circuit elements into a unified cell structure, allowing secondary functions to share space with primary functional circuits while maintaining electrical performance requirements.
Solution Approach 2:
The IC cells are designed to perform multiple functions simultaneously - primary functional circuit operation plus decoupling and antenna protection functions. The layout method enables single cells to serve multiple purposes, reducing the need for dedicated separate cells for each function.
2Area of moving object
If IC devices are miniaturized, then power consumption decreases and functionality increases, but space utilization efficiency becomes more challenging
Solution Approach 1:
The layout method nests secondary functional circuits (decoupling capacitors and antenna diodes) within the same cell boundaries as primary functional circuits. This nested arrangement allows multiple functional layers to coexist in overlapping or adjacent spatial regions, maximizing space utilization in miniaturized devices.
Solution Approach 2:
The patent utilizes vertical layering and three-dimensional layout techniques to accommodate multiple functional circuits within reduced planar footprint. By transitioning from two-dimensional separation to multi-layer integration, the method achieves higher space utilization efficiency in miniaturized IC devices.
Data Source
AI summary
A method of generating an integrated circuit (IC) layout diagram includes arranging a first portion of first through fourth pluralities of active regions and a plurality of gate regions of a cell as a functional circuit in a first portion of the cell, arranging a second portion of the first through fourth pluralities of active regions and the plurality of gate regions of the cell as a one of a decoupling capacitor or an antenna diode in a second portion of the cell, and storing an IC layout diagram of the cell in a storage device.