Flexible Film Transfer
Flexible Film Transfer - Related Videos
05:02
Procedure for the Transfer of Polymer Films Onto Porous Substrates with Minimized Defects
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Cited by 4 •
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We present a procedure for highly controlled and wrinkle-free transfer of block copolymer thin films onto porous support substrates using a 3D-printed drain chamber. The drain chamber design is of general relevance to all procedures involving transfer of macromolecular films onto porous substrates, which is normally done by hand in an irreproducible fashion.
07:58
Electroplating of Thin Films
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2023
Source: Logan G. Kiefer, Andrew R. Falkowski, and Taylor D. Sparks, Department of Materials Science and Engineering, The University of Utah, Salt Lake City, UT Electroplating is a process that uses electric current to reduce dissolved metal cations so that they form a thin coating on an electrode. Other thin film deposition techniques include chemical vapor deposition (CVD), spin coating, dip coating, and sputter deposition among others. CVD uses a gas-phase precursor of the element to be...
10:08
Fabrication of Large-area Free-standing Ultrathin Polymer Films
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Cited by 10 •
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We describe a method for the fabrication of large-area (up to 13 cm diameter) and ultrathin (as thin as 8 nm) polymer films. Instead of using a sacrificial interlayer to delaminate the film from its substrate, we use a self-limiting surface treatment suitable for arbitrarily large areas.
06:40
Insertion of Flexible Neural Probes Using Rigid Stiffeners Attached with Biodissolvable Adhesive
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Cited by 99 •
2013
Insertion of flexible neural microelectrode probes is enabled by attaching probes to rigid stiffeners with polyethylene glycol (PEG). A unique assembly process ensures uniform and repeatable attachment. After insertion into tissue, the PEG dissolves and the stiffener is extracted. An in vitro test method evaluates the technique in agarose gel.
08:30
Operant Procedures for Assessing Behavioral Flexibility in Rats
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Cited by 69 •
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The ability to assess executive functions such as behavioral flexibility in rats is useful for investigating the neurobiology of cognition in both intact animals and disease models. Here we describe automated tasks for assessing strategy shifting and reversal learning, which are particularly sensitive to disruptions in prefrontal cortical networks.
FAQs
Selective release depends on engineering the interface between the film and its original carrier, often through a release layer. The film must separate from the source substrate without damaging its functional surface or disrupting its geometry. This controlled change in interfacial adhesion determines whether the film can be transferred cleanly and remain suitable for later integration.
Temporary support stabilizes a thin film while it is separated from the source substrate and positioned over the target surface. Alignment places functional features in the intended location before lamination, which is important for patterned or microfabricated layers. Together, these controls reduce handling-related deformation and help preserve registration between the transferred film and receiving component.
Pressure, temperature, and tension govern how the film conforms to the receiving substrate during lamination. Controlled pressure promotes contact, while temperature can assist the engineered interface or bonding process; tension helps manage the film’s shape during handling. Balancing these conditions is essential because the process must achieve conformity without compromising film integrity.
A typical workflow begins with preparing the film on its source substrate and engineering a release interface. A temporary support can then stabilize the film during separation, followed by alignment over the target surface. Controlled lamination under selected pressure, temperature, or tension brings the film into conformity, after which the support or source carrier can be removed as appropriate.
The key material elements are the thin functional film, its source substrate, the receiving target surface, and any engineered release layer or temporary support. Their interfaces determine whether separation and lamination proceed effectively. Designing these relationships allows a film to move from a rigid or convenient carrier onto a flexible or irregularly shaped component without relying on the original substrate in the final device.
Engineering applications include lightweight electronics, sensors, displays, coatings, and microfabricated devices. The technique is valuable when a functional layer must be integrated with a flexible or irregularly shaped component, or when reducing substrate use matters. By expanding where thin layers can be placed, it supports device designs that would be difficult to achieve with conventional substrate-bound fabrication.