Microarray Plate Assembly Using Curable Adhesive Bonding

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Solution Overview

Problem

There is a need for improved methods and devices in the manufacturing and processing of microarrays, particularly for high-density polymer arrays, to enhance their sensitivity and efficiency in applications such as gene expression monitoring, diagnostics, and pharmacogenomics, where existing technologies face challenges in accurately and reproducibly producing and handling these arrays.

Innovation Solution

The method involves assembling a microarray plate by attaching a substrate with a plurality of sensors to a support plate, using structural elements to maintain the flatness and alignment of the sensors, and bonding them using a curable adhesive, allowing for the creation of modular arrays that can be processed simultaneously, facilitating dipping into reservoirs and alignment with processing plates.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If high-density polymer arrays are manufactured to enhance sensitivity and throughput, then the analytical performance is improved, but the manufacturing precision and structural integrity become more difficult to maintain

Engineering Contradiction:

ImprovethroughputVSAvoidalignment

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The microarray plate is divided into multiple substrates, each containing a portion of the sensor array. This segmentation allows each substrate to be manufactured and aligned independently, reducing the overall manufacturing precision requirements while maintaining high-density throughput capability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Alignment features are pre-formed on both the substrates and the support plate before the actual sensor assembly process. These pre-formed alignment features (such as recesses and protrusions) ensure precise positioning is achieved automatically during assembly, eliminating the need for complex real-time alignment procedures.

Inventive Principle:

Principle #10Preliminary action

2Measurement precision

If structural elements are added to support each sensor to maintain flatness, then the scan quality is improved, but the device complexity increases

Engineering Contradiction:

Improvescan qualityVSAvoidstructural elements

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The support plate serves multiple functions simultaneously: it provides mechanical support for the substrates, maintains the flatness of sensors through integrated structural elements, provides alignment features for precise positioning, and facilitates the dipping process. This multi-functionality reduces the need for separate components, thereby managing device complexity while improving scan quality.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Ease of operation

If substrates are made to protrude from the support plate to facilitate dipping, then the ease of operation is improved, but the structural stability may be compromised

Engineering Contradiction:

ImprovedippingVSAvoidstructural stability

Core Design Contradiction:

Ease of operationVSStability of the object's composition

Solution Approach 1:

The substrates are designed to protrude locally from the support plate only at the regions where dipping is required, while the majority of the substrate and sensor array remains supported and stable on the plate. This localized protrusion provides the necessary ease of operation for dipping while maintaining overall structural stability.

Inventive Principle:

Principle #3Local quality

4Ease of manufacture

If modular arrays are assembled from multiple substrates, then the ease of manufacture is improved, but the alignment precision becomes more challenging

Engineering Contradiction:

Improvemodular assemblyVSAvoidalignment

Core Design Contradiction:

Ease of manufactureVSManufacturing precision

Solution Approach 1:

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The support plate acts as an intermediary component that facilitates the assembly of multiple substrates. It provides a common reference plane and integrated alignment features that mediate the positioning relationship between adjacent substrates, ensuring precise alignment while maintaining modular ease of manufacture.

Inventive Principle:

Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach enables the efficient construction and processing of high-density microarray plates, improving their sensitivity and throughput, reducing scan time, and simplifying packaging, while maintaining the structural integrity and alignment of the sensors, thus addressing the limitations of existing technologies.

Implementation Method 1

bonding them using a curable adhesive

Methodology Applied

Scientific EffectAdhesive bonding: Adhesive

Data Source

PatentUS9290798B2Manufacturing and processing polymer arrays

Publication Date: 2016.03.22 AFFYMETRIX INC

AI summary

The invention provides methods to process multiple microarrays by providing a microarray plate and processing plates. In an embodiment of the invention, methods for assembling microarray plates by using wafers are described for high throughput microarray processing.