Physically Transient Memory on a Rapidly Dissoluble Paper for Security Application.

Physically Transient Memory on a Rapidly Dissoluble Paper for Security Application.
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DOI:
10.1038/srep38324
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发表时间:
2016-12-05
期刊:
影响因子:
4.6
通讯作者:
Choi YK
Choi YK
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Bae H;Lee BH;Lee D;Seol ML;Kim D;Han JW;Kim CK;Jeon SB;Ahn D;Park SJ;Park JY;Choi YK

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本文报道了一种水溶性固态钠甘油纸的瞬态存储器件。该材料具有吸湿性,因此可溶于水。就存储器装置的物理安全性而言,当存储大量数据的存储器装置被盗时,迅速废除存储器装置是至关重要的,因为所有的东西都在存储器装置中具有识别信息。利用SSG纸作为衬底,我们制作了一个一次性的电阻式随机存取存储器(RRAM),它具有良好的数据保持时间超过106秒和300个周期的循环耐久性。此记忆装置会在10秒内溶解,因此永远无法恢复或复制。通过采用直接印刷而不是光刻技术来瞄准低成本和一次性应用,存储器容量往往被限制为小于千比特。然而,与消费电子产品的高存储容量需求不同,所提出的设备针对安全应用。在这方面,子存储器容量应该找到诸如一次性可用的个人身份识别、认证码存储、密码密钥和智能递送标签的应用。这方面对于防止未授权访问的安全和保护系统是有吸引力的。
We report the transient memory device by means of a water soluble SSG (solid sodium with glycerine) paper. This material has a hydroscopic property hence it can be soluble in water. In terms of physical security of memory devices, prompt abrogation of a memory device which stored a large number of data is crucial when it is stolen because all of things have identified information in the memory device. By utilizing the SSG paper as a substrate, we fabricated a disposable resistive random access memory (RRAM) which has good data retention of longer than 106 seconds and cycling endurance of 300 cycles. This memory device is dissolved within 10 seconds thus it can never be recovered or replicated. By employing direct printing but not lithography technology to aim low cost and disposable applications, the memory capacity tends to be limited less than kilo-bits. However, unlike high memory capacity demand for consumer electronics, the proposed device is targeting for security applications. With this regards, the sub-kilobit memory capacity should find the applications such as one-time usable personal identification, authentication code storage, cryptography key, and smart delivery tag. This aspect is attractive for security and protection system against unauthorized accessibility.
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