Compact Organic Complementary D‐Type Flip‐Flop Circuits Fabricated with Inkjet Printing,Advanced Electronic Materials

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Compact Organic Complementary D‐Type Flip‐Flop Circuits Fabricated with Inkjet Printing
Advanced Electronic Materials ( IF 5.3 ) Pub Date : 2017-08-15 , DOI: 10.1002/aelm.201700208
Kazuma Hayasaka ₁ , Hiroyuki Matsui ₁ , Yasunori Takeda ₁ , Rei Shiwaku ₁ , Yasuhiro Tanaka ₂ , Takeo Shiba ₁ , Daisuke Kumaki ₁ , Shizuo Tokito ₁

Affiliation

Organic thin‐film transistors (OTFTs) have received significant consideration in recent years for potential deployment in low‐cost and large‐area printed electronics. D‐type flip‐flop (D‐FF) circuits are one of the most important logic gates for data processing and storage in such applications. Previous work has reported on NAND‐based organic D‐FF circuits. Although the demonstrated printed circuits exhibit low voltage operation at 10 V, each D‐FF circuit requires 34 TFT devices and occupies an area of 192 mm² per D‐FF circuit. This paper demonstrates inkjet‐printed organic D‐FF circuits with a compact circuit design using clocked inverters and transmission gates and compares the occupied area and the circuit performance with those of NAND‐based organic D‐FF circuits. The compact organic D‐FF circuits require only 18 OTFT devices, and can use 60% less area than NAND‐based organic D‐FF circuits fabricated by the same process. In addition, the compact organic D‐FF circuits exhibit a shorter propagation delay time than the NAND‐based D‐FF circuits. The mechanism for the shortened delay time will be discussed in detail, based on SPICE simulations. These results demonstrate the high potential of these compact organic D‐FF circuits in printable electronics.

中文翻译：

采用喷墨印刷的紧凑型有机互补D型触发器电路

近年来，有机薄膜晶体管（OTFT）在低成本和大面积印刷电子产品中的潜在部署受到了广泛的考虑。D型触发器（D-FF）电路是此类应用中数据处理和存储的最重要逻辑门之一。先前的工作已报道了基于NAND的有机D-FF电路。尽管演示的印刷电路在10 V电压下表现出低压运行，但每个D-FF电路都需要34个TFT器件，占用的面积为192 mm ²每个D-FF电路。本文演示了采用时钟反相器和传输门的紧凑电路设计的喷墨打印有机D-FF电路，并将其与基于NAND的有机D-FF电路的占用面积和电路性能进行了比较。紧凑的有机D-FF电路仅需要18个OTFT器件，并且与通过相同工艺制造的基于NAND的有机D-FF电路相比，可使用的面积减少60％。此外，紧凑型有机D-FF电路的传播延迟时间比基于NAND的D-FF电路要短。基于SPICE仿真，将详细讨论缩短延迟时间的机制。这些结果证明了这些紧凑的有机D-FF电路在可印刷电子产品中的巨大潜力。

更新日期：2017-08-15

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