We are on the brink of a new era in flexible semiconductor devices. Outstanding devices, such as a fingerprint sensor (FPS) and an active-matrix electrophoretic display (AM-EPD), are fabricated on a plastic sheet, using thinfilm transistor (TFT) technology. The devices are first fabricated on a gluss substrate with high-performance low-temperature processed polycrystalline silicon (LTPS) TFTs, then later transferred onto a plastic sheet. The FPS and AM-EPD devices on plastic are presented in this paper as examples offlexible semiconductor devices.
Abstract— Thin‐film transistors (TFTs) are field‐effect transistors that can be used to create large‐scale‐integrated (LSI) circuits. The combination of high‐performance TFTs and transfer technology of the TFTs has the potential to foster the rise of a new flexible microelectronics industry. This paper discusses the current status of flexible microelectronics, using a TFT fingerprint sensor (FPS) as an example. Technology used in active‐matrix displays can easily be applied to the TFT FPS. TFT technology should not be confined to the display industry; its use should be expanded into the semiconductor industry. With the result presented in this paper, we declare a new era of flexible microelectronics open.
A new magnetic expansion phenomenon has been observed on a magneto-static coupled type MAMMOS medium with an in-plane magnetization readout layer using DC laser power and a DC magnetic field in the readout process. On this new media, it is possible to resolve 0.22 Jl m domains and to obtain a clear signal with this unique expansion phenomenon.
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