Introducing Nanotechnology to VLSI

 INTRODUCTION

In the past decades, VLSI industries constantly shrank the dimensions of transistors, in order that more and more transistors are often built into an equivalent chip area to form VLSI more and more powerful in its functions. Because the typical feature size of CMOS VLSI is shrunk into deep submicron domain, nanotechnology is that the next step so as to take care of Moore’s law for several more decades.
Nanotechnology not only further improves the resolution in traditional photolithography process, but also introduces many brand-new fabrication strategies, like bottom-up molecular self-assembly. Nanotechnology is additionally enabling many novel devices AND circuit architectures which are totally different from current microelectronics circuits, like quantum computing, nanowire crossbar circuits, spin electronics, etc. Nanotechnology is bringing another technology revolution to traditional CMOS VLSI technology.
This will include knowledge about various devices, fabrication processes, circuit architectures, design and simulation skills for future nanotechnology based nonelectric circuits. Some examples are nanowire crossbar circuit architecture, carbon-nanotube based Nano transistor, single-electron transistor, spintronics, quantum computing, bioelectronic circuits, etc.


What is Nanoelectronics?

In the past decades, VLSI technology has achieved tremendous progress supported VLSI technology, computers and knowledge technology have greatly changed the life sort of our modern human society within the VLSI industry, there has been a continuing drive to shrink the dimensions of transistors during this way, more and more transistors are often integrated into an equivalent chip area to form VLSI circuit more and more powerful.


According to Moore’s law , the quantity of transistors within the same chip area is approximately doubled in every 12~18 months. Moore’s law has been proved to control the VLSI industry alright within the past decades. The transistor size has been shrunk into deep submicron or maybe nanometer domain. Nowadays a state of-the-art Intel Xeon Microprocessor MP X7460 (6-core processing, 2.66GHz) supported 45nm technology contains 1.90 billion transistors. This has enabled computers to be much faster and more powerful than before. because the transistor size continues to shrink, nowadays it's already approaching rock bottom physical limit of traditional optical photolithography process. The minimum line width of recent microelectronic fabrication process is now like the optical wavelength of the exposure light utilized in the photolithography. As a result, nowadays VLSI industry is facing a bottle neck to continue shrinking the dimensions of transistors. so as to take care of Moore’s law for an additional several decades, a fresh technology – nanotechnology, must be introduced into VLSI industry. 

Introducing Nanoelectronics into VLSI

Nanotechnology is that the science and engineering involved within the design, synthesis, characterization and application of materials and devices with the dimensions in nanometer (10-9m) scale. As a newly emerged exciting high-technology, it's attracted intensive interest and heavy investments round the world. Nanotechnology may be a general-purpose technology which can have significant impact on most industries and every one areas of society. It offers better built, longer lasting, cleanser, safer and smarter products for home, communications, medicine, transportation, agriculture and lots of other fields. The goal of this blog trail is to introduce the overall concepts/terminology in nanoscience and nanotechnology, also as their wide applications. Upon finishing this trail, student will have a transparent understanding about basic concepts during this field, like nanotube , nanowire, bottom-up self-assembly, molecular electronics, molecule manipulation, etc. during this trail, we also introduce about nanoelectronics – using nanotechnology for next generation VLSI circuits.

 

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