Abstract:
Flow-based microfluidic biochips have emerged as a promising platform for biochemical experiments. These chips contain transportation channels and operational devices tha...Show MoreMetadata
Abstract:
Flow-based microfluidic biochips have emerged as a promising platform for biochemical experiments. These chips contain transportation channels and operational devices that are controlled by microvalves, which are actuated by external controllers. As the complexity of experiments conducted on these chips continues to increase, control multiplexers (MUXes) have become essential for actuating a large number of valves. However, current binary-coding-based MUXes do not fully utilize the coding capacity and suffer from reliability issues due to long total length of channels and high control channel density. In this article, we propose the combinatorial coding, a novel MUX coding strategy, along with an algorithm to synthesize combinatorial-coding-based MUXes (CoMUXes) of arbitrary sizes with the theoretical maximum coding capacity. We also develop a simplification method to reduce the number of valves and the total length of control channels in CoMUXes, thereby improving their reliability. Additionally, we develop a reliability-aware adaptation method to reliably integrate the CoMUXes into the main functional part of the designs. We compare CoMUX with state-of-the-art MUXes under different control demands with up to 10 \times 2^{13} independent control channels. Experimental results show that CoMUXes can reliably address more independent control channels with fewer resources. For instance, when the number of control channels to be controlled is up to 10 \times 2^{13} , compared to a state-of-the-art MUX, the optimized CoMUX reduces the number of required flow channels by 44% and the number of valves by 90%. The proposed adaptation method is also tested to be capable of significantly reducing area usage, total length of control channels, and the risk of having defects.
Published in: IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems ( Volume: 44, Issue: 2, February 2025)
Funding Agency:
Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- IEEE Keywords
- Index Terms
- Maximum Capacity ,
- Multiplexing ,
- External Control ,
- Channel Flow ,
- Channel Length ,
- Control Channel ,
- Coding Capacity ,
- Combination Of Strategies ,
- Grid Cells ,
- Binary Data ,
- Types Of Defects ,
- Microfluidic Chip ,
- Resource Usage ,
- Sequence Of Values ,
- Risk Of Leakage ,
- Adjacent Channels ,
- Green Rectangle ,
- Channel Pairs ,
- Vertical Channel ,
- Blocking Probability ,
- Manufacturing Defects ,
- Vertical Segments ,
- Extra Area ,
- Fault Probability ,
- Horizontal Channel ,
- Vertical Control ,
- Binomial Coefficient ,
- Synthesis Tool ,
- Absolute Probability
- Author Keywords
Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- IEEE Keywords
- Index Terms
- Maximum Capacity ,
- Multiplexing ,
- External Control ,
- Channel Flow ,
- Channel Length ,
- Control Channel ,
- Coding Capacity ,
- Combination Of Strategies ,
- Grid Cells ,
- Binary Data ,
- Types Of Defects ,
- Microfluidic Chip ,
- Resource Usage ,
- Sequence Of Values ,
- Risk Of Leakage ,
- Adjacent Channels ,
- Green Rectangle ,
- Channel Pairs ,
- Vertical Channel ,
- Blocking Probability ,
- Manufacturing Defects ,
- Vertical Segments ,
- Extra Area ,
- Fault Probability ,
- Horizontal Channel ,
- Vertical Control ,
- Binomial Coefficient ,
- Synthesis Tool ,
- Absolute Probability
- Author Keywords