What is Amorphous metal?
Polycrystalline grains of varying shapes and sizes
Misaligned planes of atoms slip past each other easily, absorbing energy and allowing dislocations to move, making deformation permanent.
Grain boundaries represent weak spots
Also called Metallic glasses or glassy metals
Cooled faster than atoms can rearrange into a crystal.
Dislocation movement obstructed s
1.Current Status-1
Which material is used
PVC (polyvinyl chloride)
: 염화 비닐을 주성분으로 하는 열가소성 플라스틱
Advantages of PVC
대량생산 가능, 저렴한 가격
가벼움, 휴대성
Disadvantages of PVC
코팅이 벗겨짐, 파손 (내구성이 떨어짐)
열에 약함
폐기 처분 시 다이옥신 배출(환경오염)
단순 결제수
(4) Double patterning
The double patterning is divided into four parts, leading with wafer requirements and then two sets of lithographic requirements (Generic Pitch Splitting - Double Patterning Requirements Driven by MPU metal Half-Pitch and Generic Spacer Patterning Requirements - Driven by Flash). The lithography requirements are different for each process; the requirements for pitch splitti
Crosstalk among neighboring interconnects
Capacitive crosstalk roughly proportional to kc=CIMD /CILD
⇒ Mainly fixed by the aspect ratio of lines and vias
⇒ Crosstalk level increases at each new generation
Induces delay uncertainty
A low-κ dielectric materials with a dielectric constant less than the dielectric constant of silicon dioxide, κ<4
First low-κ was applied at the
Materials for artificial Joints
인간의 관절은 형상과 기능의 복잡성으로 인해 한 가지 종류의 재료만으로 만족스럽게 대체할 수 는 없다. 따라서 모든 부류의 재료, 즉 금속, 세라믹, 고분자 재료 등이 총 망라되어 사용되고 있다. 어느 재료나 생체용 대체 재료로서 장단점이 각각 있기 때문에 많은 경우 이