Organic/Inorganic Hybrid-Type Nonvolatile Memory Thin-Film Transistor on Plastic Substrate below 150°C

2011 ◽  
Vol 1287 ◽  
Author(s):  
Sung-Min Yoon ◽  
Shinhyuk Yang ◽  
Soon-Won Jung ◽  
Sang-Hee Ko Park ◽  
Chun-Won Byun ◽  
...  

ABSTRACTAn organic/inorganic hybrid-type nonvolatile memory TFT was proposed as a core device for the future flexible electronics. The structural feature of this memory TFT was that a ferroelectric copolymer and an oxide semiconductor layers were employed as a gate insulator and an active channel, respectively. The memory TFT with the structure of Au/poly(vinylidene fluoride-trifluoroethylene)/Al2O3/ZnO/Ti/Au/Ti/poly(ethylene naphthalate) could be successfully fabricated at the process temperature of below 150°C. It was confirmed that the TFT well operated as a memory device even under the bending situations.

2011 ◽  
Vol 58 (7) ◽  
pp. 2135-2142 ◽  
Author(s):  
Sung-Min Yoon ◽  
Shinhyuk Yang ◽  
Min-Ki Ryu ◽  
Chun-Won Byun ◽  
Soon-Won Jung ◽  
...  

2015 ◽  
Vol 15 (10) ◽  
pp. 7526-7530 ◽  
Author(s):  
Soon-Won Jung ◽  
Jae Bon Koo ◽  
Chan Woo Park ◽  
Bock Soon Na ◽  
Ji-Young Oh ◽  
...  

In this study, stretchable organic–inorganic hybrid thin-film transistors (TFTs) are fabricated on a polyimide (PI) stiff-island/elastomer substrate using blends of poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)] and poly(methyl methacrylate) (PMMA) and oxide semiconductor In-Ga-Zn-O as the gate dielectric and semiconducting layer, respectively. Carrier mobility, Ion/Ioff ratio, and subthreshold swing (SS) values of 6.1 cm2 V−1 s−1, 107, and 0.2 V/decade, respectively, were achieved. For the hybrid TFTs, the endurable maximum strain without degradation of electrical properties was approximately 49%. These results correspond to those obtained in the first study on fabrication of stretchable hybrid-type TFTs on elastomer substrate using an organic gate insulator and oxide semiconducting active channel structure, thus indicating the feasibility of a promising device for stretchable electronic systems.


2012 ◽  
Vol 486 ◽  
pp. 233-238 ◽  
Author(s):  
C.J. Chiu ◽  
S.P. Chang ◽  
W.Y. Weng ◽  
S.J. Chang

A nonvolatile memory thin-film transistor (MTFT) using an amorphous indium gallium zinc oxide (a-IGZO) semiconducting channel and a Ta2O5 gate insulator is proposed. The high-dielectric-constant material Ta2O5 was deposited by e-beaming and used for the charge storage layer, i.e., a metal-oxide-semiconductor (MOS) capacitor. We obtained memory windows (ΔVth = 2 V) at 3-V gate voltage and realized reliable memory operations. Therefore, a-IGZO TFT with Ta2O5 can be employed in integrated high-performance nonvolatile memory devices for applications to transparent displays and flexible electronic devices.


2015 ◽  
Vol 24 (03n04) ◽  
pp. 1550003 ◽  
Author(s):  
Murali Lingalugari ◽  
Pik-Yiu Chan ◽  
Evan Heller ◽  
Faquir Jain

In this paper, we are experimentally demonstrating the multi-bit storage of a nonvolatile memory device with cladded quantum dots as the floating gate. These quantum dot nonvolatile memory (QDNVM) devices were fabricated by using standard complementary metal-oxide-semiconductor (CMOS) process. The quantum dots in the floating gate region assembled using site-specific selfassembly (SSA) technique. Quantum mechanical simulations of this device structure are also presented. The experimental results show that the voltage separation between the bits was 0.15V and the voltage pulses required to write these bits were 11.7V and 30V. These devices demonstrated the larger write voltage separation between the bits.


2019 ◽  
Vol 673 ◽  
pp. 14-18 ◽  
Author(s):  
Hyeong Jun Cho ◽  
Dong-Hoon Lee ◽  
Eung-Kyu Park ◽  
Min Su Kim ◽  
So Young Lee ◽  
...  

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