Vertical Circuit Die Layout to Reduce Substrate Coupling
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Solution Overview
Problem
Existing semiconductor and integrated circuit fabrication technologies face challenges in efficiently connecting circuit dies to a substrate, particularly due to unwanted coupling effects and space constraints caused by helper inductors when dies are oriented horizontally.
Innovation Solution
The proposed solution involves fabricating circuit dies in a vertical orientation on the substrate, allowing helper inductors to be drawn on the die itself rather than within the substrate, thereby reducing coupling effects and optimizing space utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If circuit dies are oriented horizontally on the substrate, then the connection process is conventional and straightforward, but unwanted coupling effects occur and space utilization is reduced due to helper inductors within the substrate
Solution Approach 1:
The patent transitions from horizontal die orientation to vertical die orientation, changing the spatial dimension of connection. This dimensional change allows helper inductors to be drawn on the die itself rather than within the substrate, eliminating unwanted coupling effects between substrate-based inductors and improving space utilization.
2Adaptability or versatility
If helper inductors are drawn within the substrate, then the substrate can support the circuit functionality, but space utilization is reduced and coupling effects increase
Solution Approach 1:
The patent extracts the helper inductors from the substrate and relocates them to be drawn directly on the die. This extraction eliminates the space-consuming substrate inductors and their associated coupling effects, while the die itself provides the necessary circuit functionality through its vertical orientation and integrated inductor structures.
3Reliability
If helper inductors are drawn within the substrate, then the circuit can operate, but signal rejection and isolation are compromised due to coupling effects
Solution Approach 1:
By changing from horizontal to vertical die orientation, the patent positions helper inductors on the die surface rather than within the substrate. This dimensional repositioning eliminates the coupling effects that cause signal rejection and isolation problems, while maintaining reliable circuit operation through the vertical connection architecture.
Data Source
AI summary
A vertically oriented circuit die with lateral side metal can include a substrate and a die disposed on the substrate in a vertical orientation. The die can include a via disposed on a lateral side of the die, a metal line disposed on a bottom side of the die, and an electrical connection positioned in the via for coupling the metal line and the substrate.