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为光学加密和灵活的集成电路载板设计的纹
Shilong Zhong1,2,3, Zhaoxiang Zhu4, Qizheng Huo5
1School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, China.
Nature communications
|July 4, 2024
概括
这项研究介绍了聚合物的一种新的纹策略,使得均的图案形成和先进的光学防伪成为可能. 这种技术还可以为高密度的灵活集成电路载板提供便利.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 纳米技术纳米技术
背景情况:
- 聚合物模式往往与基板的机械性质不匹配,导致像脱落这样的缺陷.
- 现有的方法很难在聚合物表面上创建统一,稳定的图案.
研究的目的:
- 开发一种新的策略来创造统一的聚合物纹.
- 为了使多图像光学防伪使用可切换图像.
- 制造高密度的灵活集成电路 (IC) 载体板.
主要方法:
- 采用光成像技术进行光诱导的聚合物交叉连接,以定义应力分布区域.
- 控制剩余溶剂扩散以重新分配应力,使纹均.
- 采用热聚合来实现图案和基板材料的兼容性.
- 在纹聚胺薄膜上使用全添加工艺创建细铜电路.
主要成果:
- 在没有强力放松问题的情况下实现了统一的纹.
- 演示了记录和隐藏多达八个可切换图像的能力,可以在没有杂音的情况下读取.
- 制造的柔性IC载体板具有比当前行业标准高400%的铜线密度.
- 确保开发的技术符合工业化标准.
结论:
- 纹策略提供了一个强大的方法,用于创建无缺陷的聚合物图案.
- 该技术为先进的光学防伪应用提供了一个有前途的解决方案.
- 开发的柔性IC载板代表了电子元件制造业的重大进步.
相关概念视频
01:21LC Circuits
An LC circuit consists of an inductor and a capacitor, either in series or parallel. Consider a charged capacitor connected with an inductor in series. Before the switch is closed, all the energy of the circuit is stored in the electric field of the capacitor. When the switch is closed, the capacitor begins to discharge, producing a current in the circuit. The current, in turn, creates a magnetic field in the inductor. Because of the induced emf in the inductor, the current cannot change...
01:20Design Example: Capacitance Multiplier Circuit
In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.