Nanostructure Transfer Substrate for Precise Alignment
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Solution Overview
Problem
The integration of nanomaterials into devices and systems is hindered by unpredictable electrical properties and the inability to accurately position them using manual manipulative techniques, leading to non-uniformity and manufacturing challenges in commercial production, particularly in the electronics industry.
Innovation Solution
A method involving a transfer substrate with adherent material is used to deposit and orient nanostructures onto a receiving substrate, allowing for precise positioning and alignment by controlling the adherent material's location and the relative movement of the substrates during contact and separation, ensuring nanostructures are adhered to specific regions and oriented along a common axis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual manipulative techniques are used to position nanomaterials, then placement flexibility is maintained, but positioning accuracy deteriorates to the point of being virtually impossible
Solution Approach 1:
The patent introduces an intermediary system consisting of a transfer substrate with adherent material that mediates between the nanomaterials and the final device substrate. This intermediary enables indirect handling and positioning of nanomaterials, achieving high positioning accuracy through controlled adhesion and substrate manipulation rather than direct manual placement.
2Manufacturing precision
If flow directed placement methods are used to align nanomaterials, then alignment capability is achieved, but deposition uniformity deteriorates with widely disparate results
Solution Approach 1:
The patent applies preliminary action by pre-coating the transfer substrate with adherent material before nanomaterial deposition. This pre-prepared adhesive layer ensures uniform nanomaterial adhesion across the substrate surface, eliminating the deposition inconsistency problems associated with flow-directed methods and enabling consistent, repeatable results.
3Measurement precision
If molecular recognition and self assembly techniques are used for nanomaterial placement, then positioning capability is achieved, but manufacturing complexity increases requiring substantial infrastructure development
Solution Approach 1:
The patent extracts the complex molecular recognition and self-assembly processes from the manufacturing workflow by using a simpler adherent material coating approach on the transfer substrate. This extraction maintains positioning precision while eliminating the need for complex infrastructure development associated with molecular-level manipulation techniques.
4Ease of manufacture
If nanomaterials are used without selection process for electrical properties, then manufacturing simplicity is maintained, but electrical property predictability deteriorates to unpredictable
Solution Approach 1:
The patent applies self-service by using adherent material properties and controlled substrate manipulation to automatically achieve proper nanomaterial placement and orientation. This self-directed process maintains manufacturing simplicity while improving electrical property consistency through uniform deposition and alignment, eliminating the need for individual nanomaterial selection.
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 robust and repeatable positioning and orientation of nanomaterials, improving the yield and uniformity of device fabrication, particularly in electronic and optoelectronic applications, by ensuring precise contact between nanostructures and electrodes, and facilitating the production of high-performance, flexible electronic devices.
Implementation Method 1
An adherent material is provided deposited on selected regions of a receiving substrate. The transfer substrate is mated with the receiving substrate whereupon the nanostructures contact the adherent material on the receiving substrate
Data Source
AI summary
Methods and systems for depositing nanomaterials onto a receiving substrate and optionally for depositing those materials in a desired orientation, that comprise providing nanomaterials on a transfer substrate and contacting the nanomaterials with an adherent material disposed upon a surface or portions of a surface of a receiving substrate. Orientation is optionally provided by moving the transfer and receiving substrates relative to each other during the transfer process.