Discrete Connection Blocks for High-Density PoP Interconnects
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Solution Overview
Problem
The semiconductor industry faces limitations in increasing integration density due to physical constraints in two-dimensional integrated circuit formation, leading to complex designs and reduced performance in Package-on-Package (PoP) devices.
Innovation Solution
The use of discrete blocks, such as silicon or silicon dioxide, within a molding compound, along with through-silicon vias and integrated passive devices, to enhance electrical connections and increase integration density in PoP structures, allowing for a higher density of components and improved performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If more devices are integrated into one chip to increase integration density, then the quantity of components increases, but the design complexity increases and performance decreases
Solution Approach 1:
The patent divides the integrated circuit into multiple discrete blocks that are separately formed and then interconnected. Each block can be independently designed and manufactured, reducing the complexity of designing the entire circuit as a single unit while still achieving high integration density through vertical stacking and interconnection.
Solution Approach 2:
The patent transitions from traditional two-dimensional planar integration to three-dimensional vertical integration by stacking multiple discrete blocks vertically and connecting them through interblock vias. This dimensional change allows significantly higher integration density without proportionally increasing design complexity, as each block maintains a manageable two-dimensional footprint.
2Quantity of substance
If traditional 2D integrated circuit formation is used, then manufacturing processes are simpler, but integration density is limited by physical constraints
Solution Approach 1:
By segmenting the circuit into discrete blocks that can be manufactured separately using conventional processes, the patent maintains manufacturing simplicity for each individual block while achieving high overall integration density through vertical stacking. Each block can be produced using standard fabrication techniques.
Solution Approach 2:
The patent adds a vertical dimension to traditional 2D manufacturing by stacking multiple blocks and connecting them through interblock vias. This approach leverages existing planar manufacturing processes for each block while using established vertical interconnection techniques, thereby achieving high integration density without requiring entirely new manufacturing methodologies.
3Quantity of substance
If Package-on-Package structure is used to increase integration density, then component quantity increases, but electrical performance deteriorates due to complex designs
Solution Approach 1:
The patent applies local quality by creating discrete blocks with specific functional characteristics optimized for their particular roles. Each block can be designed with localized interconnect structures and via configurations tailored to its specific electrical performance requirements, rather than using a uniform approach across the entire integrated circuit.
Solution Approach 2:
By transitioning to three-dimensional vertical stacking with controlled interblock vias, the patent reduces the pitch between components and interconnections. This vertical integration approach shortens signal paths and reduces parasitic effects compared to extended 2D layouts, thereby improving electrical performance while achieving higher integration density.
Data Source
AI summary
A semiconductor device and a method of manufacture are provided. In particular, a semiconductor device using blocks, e.g., discrete connection blocks, having through vias and/or integrated passive devices formed therein are provided. Embodiments such as those disclosed herein may be utilized in PoP applications. In an embodiment, the semiconductor device includes a die and a connection block encased in a molding compound. Interconnection layers may be formed on surfaces of the die, the connection block and the molding compound. One or more dies and/or packages may be attached to the interconnection layers.