3D Semiconductor Channel Layout for Independent Signal Transfer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current 3D semiconductor structures face challenges in efficiently integrating multiple chips in a limited space while maintaining independent operation and signal transfer capabilities.
Innovation Solution
A semiconductor apparatus with a direct access section for generating control signals, an interface section comprising channel circuits, and a through-via region for electrically coupling channel circuits and stack dies, allowing for independent operation and efficient signal transfer between multiple channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple chips are stacked and packaged in a single package to improve integration, then integration density is improved, but device complexity increases
Solution Approach 1:
The semiconductor apparatus is divided into multiple independent channel circuits, each capable of separate operation. Each channel circuit includes dedicated control signal lines and data lines that can be independently configured, allowing the complex multi-chip system to be managed as separate functional units rather than a monolithic complex structure.
Solution Approach 2:
The patent transitions from traditional planar wire-based connections to vertical through-silicon via connections, utilizing the third dimension (depth) to establish electrical coupling between stacked chips. This dimensional change reduces package area and simplifies the overall interconnection architecture despite the increased number of chips.
2Area of stationary object
If through-silicon via is used to electrically couple stacked chips, then package area is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The control signal generation is performed in advance by the direct access section, which generates control signals based on input signals before they need to be transmitted to the channel circuits. This preliminary signal processing reduces the complexity and precision requirements of the through-silicon via connections, as fewer and simpler control signals need to be routed through the vertical interconnects.
3Productivity
If multiple channels are used to transfer control signals and data, then signal management efficiency is improved, but device complexity increases
Solution Approach 1:
Each channel circuit is designed with universal functionality to handle both control signals and data transmission independently. The channel circuits can be selectively activated based on operation mode (normal mode or test mode), allowing the same hardware structure to serve multiple purposes and reducing overall device complexity while maintaining high signal management efficiency.
Data Source
AI summary
A semiconductor apparatus includes a direct access section, an interface section, and a through-via region. The direct access section receives first and second groups of input signals through a direct access pad, and generates first and second groups of control signals based on the first and second groups of input signals. The interface section comprises a plurality of channel circuits suitable for receiving a part or all of the first and second groups of control signals in response to a plurality of channel selection signals. The through-via region electrically couples the plurality of channel circuits and a plurality of stack dies to form a plurality of channels, respectively.