Table of Contents
How does polymer memory work?
Polymer memory stores data in an entirely different manner in comparison to silicon devices. Instead of encoding zeroes and ones as the measure of charge stored in a cell, Coatues chips store data based on the polymers electrical resistance.
What is a polymer that has memory?
There are many different types of shape memory polymer and more are being developed all the time. Three commonly used engineering polymers that can demonstrate the shape memory effect (SME) include polytetrafluoroethylene (PFTE), polylactide (PLA), and ethylene-vinyl acetate (EVA).
Where is polymer memory used?
The properties of polymer memory are low-cost and high-performance, and have the potential for 3D stacking and mechanical flexibility. Variants can be write-once or multiple-write. Printed versions of this technology already exist and are used in low-density applications such as toys.
What is thermoplastic memory?
Thermoplastic SMPs are important class of polymeric-based shape memory materials. In this class of SMPs, two phase morphology is the main cause of the thermally induced shape memory effect. One phase causes the physical crosslinking, and the other phase behaves as a molecular switch.
What are shape memory plastics used for?
SMPs are smart materials with potential applications as, e.g., intravenous cannula, self-adjusting orthodontic wires and selectively pliable tools for small scale surgical procedures where currently metal-based shape-memory alloys such as Nitinol are widely used.
What is shape memory composite?
Shape memory composites (SMCs) are attractive materials as they combine typical mechanical and functional properties of composites with shape memory properties. Such properties can be given to composite materials and structures by using shape memory polymer (SMP) matrices or integrating parts made of SMPs.
How are memory polymers made?
By conventional processing, e.g. extruding or injection molding, the polymer is formed into its initial, permanent shape B. Afterwards, in a process called programming, the polymer sample is deformed and fixed into the temporary shape A.
How are memory polymers processed?
Polymers exhibiting a shape-memory effect have both a visible, current (temporary) form and a stored (permanent) form. Once the latter has been manufactured by conventional methods, the material is changed into another, temporary form by processing through heating, deformation, and finally, cooling.
Why is Nitinol useful?
Nitinol was developed by the U.S. Navy and stands for nickel titanium alloy. This metal is particularly useful for medical applications because it has thermal memory. This property allows stents to be made at a certain diameter, cooled, and then compressed onto a delivery system.
What is polypolymer memory?
Polymer memory refers to a new memory technology that uses conductive polymers instead of silicon-based constructions to store information.
What is the architecture of polymer memory devices?
Architecture of Polymer Memory devices • Each polymer is sandwiched between two electrodes which acts as memory cell • A voltage is applied between top and the bottom electrodes • Memory is represented as space charges in the polymers that are detected using electrical pulses 8 12/21/14
Why are polymers used in electronics?
Polymers are essential electronic material that can be processed as liquids. With thin film memory technology, polymers are used in various industrial standard processes.
What is a memory cell?
To put it simply, every memory cell references a polymer that is put into a different conductive condition by the read/write mechanisms. That means the data are stored permanently in the system.