1.1 Soft lithography
Microstructure나 nanostructure을 만들기 위한 printing, molding의 과정을 포함하는 technique으로, 일반적으로 printing, molding, transfer의 3단계 과정을 거친다.
1.1.1 Printing
Master를 만드는 과정이다. Photolithography, e-beam, micro-machining, photoresist 등 다양한 방법을 통해 원하는 모양을 가지는 master를 제작할
technique that uses a laser as the power source to sinter powdered material (typically metal).
The laser selectively fuses powdered material by scanning cross-sections generated from a 3-D digital description of the part.
After each cross-section is scanned, the powder bed is lowered by one layer thickness, a new layer of material is applied on top, and the process is repeated until the part is
3D printing
3D printing or additive manufacturing (AM) refers to any of the various processes for printing a three-dimensional object. Primarily additive processes are used, in which successive layers of material are laid down under computer control. These objects can be of almost any shape or geometry, and are produced from a 3D model or other electronic data source.
Basic principles
If the
NEC는 최근 카본나노튜브(이하 CNT)의 한 종륲인 카본나노혼(CNH)을 촉매담지전극에 사용하므로써 이와 같은 휴대용 연료전지의 성능을 향상시킬수 있음을 보였다.
카본나노튜브는 1991년에 이이지마에 의해 발견된 것으로 지금은 나노기술의 대표적인 소재로서 세계의 주목을 받고 있다. 그 한 종류
printed line width, meeting the 12% specification drives the overlay specification for double pattering. Further, to make the overlay specification as large as possible, the line width needs to be controlled to the tightest possible. In the tables, this means the double patterning line width must be controlled to the specification that an MPU gate line width would be controlled to. The mask speci