Carving out circuits that click into place

phys.org | 12/29/2017 | Staff
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A strategy for assembly of electronic systems-especially the flexible structures needed for high-performance devices of the future-uses integrated circuits as Lego-like building blocks. "This plug-and-play approach is absolutely disruptive," says Ph.D. candidate Sohail Shaikh from KAUST: this unique method of assembly creates completely new options for manufacturing processes of these systems.

Existing technologies for building electronic devices, such as computers, smartphones and robots, rely on complex automated manufacturing processes. These involve high-precision equipment to align and package thousands of components that range from a few millimeters upward in size. Once aligned, these components are connected to printed circuit boards using numerous tiny pins.

Processes - Today - Components - Supports - Multifunctional

These manufacturing processes work well for today's electronic components and supports, which are rigid and hard. However, they do not suit the emerging electronic systems-increasingly multifunctional, high-performance devices that demand greater miniaturization in addition to better accuracy and precision. In particular, bonding and alignment are exceptionally difficult to achieve for flexible integrated circuits and soft substrates needed for devices that are wearable and implantable.

To tackle this problem, Muhammad Hussain and his team from KAUST developed a modular approach in which building blocks presenting complementary geometries produce electronic systems via lock-and-key-type assembly to eliminate any steps that require bonding or soldering. They carved various shapes displaying different sizes, heights...
(Excerpt) Read more at: phys.org
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