Abdulilah Mohammad Mayet
Biography
Dr. Abdulilah Mayet is a visionary technology leader and entrepreneur, serving as Founder and CEO of Qimam Abha Co. and former CTO of Saudi Electronics Materials Company (SEMC). He has pioneered advancements in nano-fabrication and MEMS technologies, established a leading research center at King Khalid University, and fostered global collaborations with MIT and Cornell University. Recognized as a Misk Foundation 2030 Leader, Dr. Mayet has a strong record in innovation, patents, and strategic growth, contributing significantly to Saudi Arabia?s Vision 2030.
Research Interest
Nano-fabrication and Micro-Electro-Mechanical Systems, Semiconductor Materials and Devices, Sustainable Business and Industrial Development, Digital Transformation and Industry 4.0
Abstract
Biodegradable Device with Energy Harvesting Operation
Low power consumption devices and hygienic material are the heist concern in biomedical devices. Our innovated material amorphous tungsten nitride (WNx) is one of the optimal solution that exhibit both demanded characteristics. Fabricating amorphous WNx based nanoelectromechanical (NEM) switches that can be used to obtain power by reusing the stored potential energy in a bent NEM switch to power the next logic operation could solve the power consummation issue. In this work we compare the power dissipated in silicon CMOS adiabatic circuit with the power dissipated in an energy reversible adiabatic NEM switch fabricated with amorphous metal. In addition, amorphous WNx can provide an effective solution to nano-scaled devices and systems as due to the absence of significantly larger grains and associated boundaries, during subtractive etching, they provide more uniform architecture. Therefore, we are reporting dissolution characteristics and biocompatibility of an amorphous WNx ? which has a grain-less molecular structure. Tungsten nitride's structure contributes to corrosion resistance, high endurance, smooth surface, low contact wear and exacerbation resistance. Here, we report its dissolution characteristics and mechanism in ground water (GW), deionized (DI) water and saline.
Complete dissolution times were analyzed for different size features, between the nanoscale and macroscale. As examples, we have fabricated amorphous WNx based nanoelectromechanical (NEMS) switch for nanoscale structures, an accelerometer for a microscale device, and a temperature sensor for large surface area macroscopic dimensions. Dissolution rate for all devices is approximately 20-60 nm/hour, at room temperature, in ground water. The successful and complete dissolution of WNx based devices clearly highlights the versatile nature and simple chemistry of amorphous WNx film and its utility in transient electronic applications. In addition, we reported the material amorphous WNx based devices could be used in sub-dermal implants for biodegradable function. Our aim is to insulate transdermal wires connect to an externally mounted,
miniaturized wireless potentiostat for data transmission. This biodegradable function will prevent bacteria from forming biofilms along transdermal wires, or seeding haematogenously, with the potential to migrate within the body and to provoke immune-mediated pathological tissue reactions. Another application is to use the amorphous WNx as a stent or a tubular support placed temporarily inside a blood vessel, canal, or duct to aid healing or relieve an obstruction which degrade gradually by the time with no need for extraction surgery.
