Frontiers of Engineering Reports on Leading-Edge Engineering from the 2013 Symposium (2014) / Chapter Skim
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Mechanics, Materials, and Functionalities of Biointegrated Electronics--Nanshu Lu
Mechanics, Materials, and Functionalities of Biointegrated Electronics--Nanshu Lu
Pages 127-140
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From page 127... ...
. Early research focused on organic semiconductors and conducting polymers because their intrinsic deformability, light weight, and low manufacturing cost are appealing for large-area flexible electronics, especially when merged with roll-to-roll processes (Forrest 2004)
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As a result, although bulk silicon wafers are rigid plates, silicon nanomembranes (with a thickness of ~100 nm) can be readily arched to the radius of a folded paper (~0.1 mm)
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, electronics fabricated on the surface of such substrates have to survive tensile strains induced by bending
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Materials Processing: Microtransfer Printing Microtransfer printing technology developed for single crystal inorganic semiconductors (Kim et al. 2010c; Meitl et al.
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Preprocessed monocrystalline silicon nanomembranes are then released from the SOI wafer and printed onto the polyimide (PI) -coated rigid handle wafer using elastomeric stamps; the precoated PI layer serves as a support and encapsulation layer for the functional metal and semiconducting nanomembranes.
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wafers onto polyimide (PI) -coated rigid handle wafer with an elastomer stamp.
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(B) Multifunctional "instrumented" balloon catheter incorporating stretchable electrophysiological and radio frequency ablation electrodes, temperature sensors, pressure sensors, flow sensors, and arrays of microscale inorganic light-emitting diodes (µ-ILEDs)
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One type involves the administration of a modulated electrical current to human skin to excite cutaneous mechanoreceptors, which provide instantaneous electrotactile feedbacks to the wearer in an acute and time-controlled manner (Warren et al.
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. In vivo pretreatment sensing can provide critical information to guide treatment, and in situ posttreatment sensing can provide immediate data to evaluate treatment results and help guide the next treatment if any.
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. Roll-to-roll transfer printers for the deterministic assembly of inorganic semiconductors on polymer substrates hold the key for large-volume, low-cost manufacture of biointegrated electronics (Yang et al.
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2008. A hemispherical electronic eye camera based on compressible silicon optoelectronics.
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2006. Materials science: Inorganic electronics begin to flex their muscle.
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2013. Multifunctional epidermal electronics printed directly onto the skin.
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