Figure from Dawon Kahang’s MOS patent

1960 - Metal Oxide Semiconductor (MOS) Transistor Demonstrated
John Atalla and Dawon Kahng fabricate working transistors and demonstrate the first successful MOS field-effect amplifier.

In 1959 M. M. (John) Atalla and Dawon Kahng at Bell Labs achieved the first successful insulated-gate field-effect transistor (FET), which had been long anticipated by Lilienfeld, Heil, Shockley and others (1926 Milestone) by overcoming the "surface states" that blocked electric fields from penetrating into the semiconductor material. Investigating thermally grown silicon-dioxide layers, they found these states could be markedly reduced at the interface between the silicon and its oxide in a sandwich comprising layers of metal (M - gate), oxide (O - insulation), and silicon (S – semiconductor) - thus the name MOSFET, popularly known as MOS. As their device was slow and addressed no pressing needs of the telephone system, it was not pursued further. In a 1961 memo, however, Kahng pointed out its potential "ease of fabrication and the possibility of application in integrated circuits." But researchers at Fairchild and RCA did recognize these advantages. In 1960 Karl Zaininger and Charles Meuller fabricated an MOS transistor at RCA and C.T. Sah of Fairchild built an MOS-controlled tetrode. Fred Heiman and Steven Hofstein followed in 1962 with an experimental 16-transistor integrated device at RCA.


Dr. Dawon Kahng, 61, Inventor In Field of Solid-State Electronics - New York Times
Meet the 2009 National Inventors Hall of Fame Inductees - Hall of Fame



The various electromagnetic based actuation(EMA) methods have been proposed for actuating microrobot. The advantage of EMA is that it can provide wireless driving to microrobot. In this reason a lot of researchers have been focusing on the EMA driven microrobot. This paper proposed a swimming microrobot driven by external alternating magnet field which is generated by two pairs of Helmholtz coils.



The microrobot has a fish-like shape and consists of a buoyant robot body, a permanent magnet, and a fin. The fin is directly linked to the permanent magnet and the magnet is swung by the alternating magnet field, which makes the propulsion and steering power of the robot. In this paper, firstly, we designed the locomotive mechanism of the microrobot boy EMA. Secondly, we set up the control system. Finally, we demonstrated the swimming robot and evaluated the performance of the microrobot by the experiments.

Jongoh Park, Intravascular Therapy Microrobot



LG Display has announced its development of a newspaper-size flexible e-paper. The 19-inch wide (250x400mm) flexible e-paper is almost as big as a page of A3 sized newspaper. The product is optimized for an e-newspaper and able to convey the feeling of reading an actual newspaper. Additionally, as the product measures 0.3 millimeters thin, the e-paper weighs just 130 grams despite its 19-inch size.

LG Display arranged TFT on metal foil rather than glass substrate, allowing the e-paper display to recover its original shape after being bent. The use of a metal foil substrate makes the e-paper both flexible and durable while maintaining display qualities. In particular, LG Display applied GIP (gate-in-panel) technology which integrates the gate driver IC onto the panel. This improves its flexibility by removing driver ICs which are attached to the side of panel and hinder the bending of the display.

LG



Shin-Hyun Kim, Jae Young Sim, Jong-Min Lim and Seung-Man Yang, “Smart Magnetic Janus Particles with Nanoscopic Surface Complexity for Remote-Controlled Locomotion,” Angewandte Chemie International Edition, Accepted for Publication (2010)



Colloidal particles are used as elemental building blocks to construct biofunctional nanostructures. In particular, multidimensional periodic arrangements of colloidal particles such as planar arrays and spherical assemblies can be used in a wide range of biological fields. The spatial regularity of such structures at the submicron-scale gives rise to special features such as a photonic bandgap (PBG) and selective permeability, which cannot be achieved by single colloidal particles. Recent advances in microfluidics technologies enable the fabrication of designed microparticles of equal size and shape in a continuous manner. Such microparticles have great potential for use in high-throughput screening and immunoassays. In this article, we review the current state-of-the-art in regard to colloidal assemblies and microparticles prepared by microfluidics for biological applications. This review consists of five main sections: (1) surface modification methods, (2) two dimensional (2D) and (3) three dimensional (3D) colloidal assemblies, (4) confined regular structures, and (5) novel fabrication strategies for advanced colloidal assemblies. In each section, we discuss not only the fabrication routes for biofunctional materials but also the characteristics of the materials and their biological applications. Finally, we outline the future perspectives for biofunctional colloidal materials.





Janus microspheres composed of superhydrophobic and hydrophilic hemispherical surfaces were prepared using photocurable Pickering emulsion droplets. Upon placement at an air-water interface, an impregnable superhydrophobic barrier with high flexibility is formed. These microspheres have great potential in size-dependent semipermeable membranes, floating micromachines, and superhydrophobic coatings.

Kaist Superlattice Nanomaterials Lab

Angewandte Chemie International Edition



REMIX is a musical instrumental installation which is played by water. Using the water, it is operated as the switch of the installation, turning the power on or off. Moreover, it changes the music by itself. As the audience change the combination of instruments, they hear the music sound according to the movement of two golf balls, being in and out of a pair of holes.

This installation is composed of two water pillars and there are five different switches in each of them. As each switch has its own musical instrument sound, it is possible that ten different kinds of music instrument sounds can be played. The main material, the water, is controlled by two water pumps and flows through two pillars from the place that audience put the golf balls. In doing so, the music is played and the light in the water is gradually illuminated as the water level in each pillar rises and triggers the switch of it.

Hye jung Chung



the Spectators , interactive video installation , 2008 - View Movie

This project is an interactive video installation that explores issues of (inter)personal responsibility and suffering vis-?-vis torture.

Young Sang Cho



Form Screen Interactive Displays & Flexible Screen Object using projector based tracking technology. with Young Sang Choi - ITP Spring Show 2009

Min Soo Lee






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