These seek to create smaller devices by using larger ones to direct their assembly.
Many technologies that descended from conventional solid-state silicon methods for fabricating microprocessors are now capable of creating features smaller than 100 nm, falling under the definition of nanotechnology. Giant magnetoresistance-based hard drives already on the market fit this description, as do atomic layer deposition (ALD) techniques. Peter Grünberg and Albert Fert received the Nobel Prize in Physics for their discovery of Giant magnetoresistance and contributions to the field of spintronics in 2007.
Solid-state techniques can also be used to create devices known as nanoelectromechanical systems or NEMS, which are related to microelectromechanical systems or MEMS.
Atomic force microscope tips can be used as a nanoscale "write head" to deposit a chemical upon a surface in a desired pattern in a process called dip pen nanolithography. This fits into the larger subfield of nanolithography.
Focused ion beams can directly remove material, or even deposit material when suitable pre-cursor gasses are applied at the same time. For example, this technique is used routinely to create sub-100 nm sections of material for analysis in Transmission electron microscopy.
Archives
-
▼
2009
(47)
-
▼
September
(12)
- Health and environmental concerns
- Implications
- Tools and techniques
- Speculative
- Top-down approaches
- Bottom-up approaches
- Nanomaterials
- Molecular nanotechnology: a long-term view
- Simple to complex: a molecular perspective
- One nanometer (nm) is one billionth, or 10−9, of a...
- The first use of the concepts in 'nano-technology'...
- Nanotechnology, shortened to "nanotech", is the st...
-
▼
September
(12)
nanotechnology
Subscribe to:
Post Comments (Atom)
Visitors
Advertising my web site free online UseAds.com - Add & submit url & exchange text links + increase traffic & promotion marketing website
No comments:
Post a Comment