Two complementary approaches to fabrication of NEMS
1. Top-down approach uses the traditional microfabrication to manufacture devices. While being limited by the resolution of these methods, it allows a large degree of control over the resulting structures. Typically, devices are fabricated from metallic thin films or etched semiconductor layers.
2. Bottom-up approaches, in contrast, use the chemical properties of single molecules to cause single-molecule components to self-assemble into some useful conformation. These approaches utilize the concepts of molecular self-assembly and/or molecular recognition. This allows fabrication of much smaller structures, albeit often at the cost of limited control of the fabrication process.
3. A combination of these approaches may also be used, in which nanoscale molecules are integrated into a top-down framework.
Two complementary approaches to fabrication of NEMS1. Top-down approach uses the traditional microfabrication to manufacture devices. While being limited by the resolution of these methods, it allows a large degree of control over the resulting structures. Typically, devices are fabricated from metallic thin films or etched semiconductor layers.2. Bottom-up approaches, in contrast, use the chemical properties of single molecules to cause single-molecule components to self-assemble into some useful conformation. These approaches utilize the concepts of molecular self-assembly and/or molecular recognition. This allows fabrication of much smaller structures, albeit often at the cost of limited control of the fabrication process.3. A combination of these approaches may also be used, in which nanoscale molecules are integrated into a top-down framework.
การแปล กรุณารอสักครู่..
