Microspheres, Spheres, Nanospheres - Worldwide
Custom R&D design of microtechnology system to customer's specifications.
Design of Containment Structure:
Containment structure is designed for functionality, manufacturability,
cost and environmental stability requirement. Cospheric's engineers are
experienced in challenges and limitations as well as advantages of
microreplication process. We will design the structure that will be
suitable for R&D as well as cost-effective manufacturing processes. We specialized in structures micro-embossed in polycarbonate as thin as 50micron. We have hands-on materials and microembossing
expertise to develop a specific microreplication process for a polymer
of your choice. We regularly make microreplications of greater than 5:1
aspect ratios and ~250k features per square inch. We can achieve high
aspect ratio microreplications of greater than 10:1 on smaller scale
samples. We can also apply precision thin coatings
on microstructures, and have extensive experience with optically-clear
laminations, encapsulations and adhesives.
Raw Materials Selection and Sourcing:
Not every polymer is suitable for microreplication by hot-embossing.
Only polymers with specific melting points and phase transitions can be
used. Our extensive experience with high aspect ratio microreplication
by hot embossing allows us to select materials that will meet the
demands of the process and product requirements. Does the matrix material need to be compatible with solvents, oils or other materials? Does it need to be able to withstand certain temperature, UV, pressure and humidity requirements? Are the color or transparency of the microstructure important? What about electrostatic properties of the material? We can help you answer all of those questions and select the right material for your product requirements and your unique application.
Active Elements with Correct Functionality:
Working with small active particles and microspheres is one of our key
areas of experitise. We can design particles with specific
functionalities, including surface charge, magnetic, surface, color
properties. The particles can be designed to respond under specific
conditions. Half-shell or hemispherical coatings can be applied to any sphere
(glass, polymer, ceramic) in sizes 45micron in diameter and higher. Coatings can be customized for any color and coverage of
between 20% to 60% of the sphere. Each coating is custom formulated for color,
charge, magnetic, electric, and surface properties, and solvent
resistance per customers’ needs. We offer a selection of coated paramagnetic particles that will rotate in response to electromagnetic field. Highly charged microspheres exhibit electrophoretic properties in a variety of applications.
Selection of Adhesives:
Since we have sourced adhesives for many microtechnology projects, we
are very familiar with what adhesives are commercially available on the
market and have relationships with key adhesive suppliers. We can work
with you to find an adhesive that works for your application (solvent
resistant, optically clear, heat-sensitive or pressure-sensitive,
activation temperature, etc). We have in-house tools for precise
lamination and/or encapsulation of microstructures.
Contact us to discuss your application and product requirements.