m******i
发帖数: 834 | 1 Top-down and bottom-up are used as two approaches for assembling nanoscale
materials and devices. Bottom-up approaches seek to have smaller (usually
molecular) components arrange themselves into more complex assemblies, while
top-down approaches seek to create nanoscale devices by using larger,
externally-controlled ones to direct their assembly.
The top-down approach often uses the traditional workshop or
microfabrication methods where externally-controlled tools are used to cut,
mill and shape | s**l
发帖数: 869 | 2 解释得挺清楚地
赫赫
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【在 m******i 的大作中提到】
: Top-down and bottom-up are used as two approaches for assembling nanoscale
: materials and devices. Bottom-up approaches seek to have smaller (usually
: molecular) components arrange themselves into more complex assemblies, while
: top-down approaches seek to create nanoscale devices by using larger,
: externally-controlled ones to direct their assembly.
: The top-down approach often uses the traditional workshop or
: microfabrication methods where externally-controlled tools are used to cut,
: mill and shape
| j**3
发帖数: 7 | | y***e
发帖数: 6082 | 4 google
给出出处？reference?
【在 j**3 的大作中提到】
: 给出出处？reference?
| s***z
发帖数: 83 | |
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