Introduction of system semiconductor
What is semiconductor?
History of Korean semiconductor
Industrial structure of domestic semiconductor
Reason of adopting system semiconductor
How to utilize system semiconductor
What is Semiconductor?
A substance which makes electricity flow about half is called a nonconductor.
A substance which makes electricity flow wel
Like a finger in the macro world so feels a tiny tip on a lever in the nano world a surface Forces are in Pico Newton range the same like intermolecular binding forces
1-1. AFM tip
- actually feels the sample surface.
- silicon nitride
exhibit excellent flexibility, Contact AFM mode
- silicon crystal
high frequency oscillating(100kHz), more stiffer than silicon nitride, non co
1. Industry
1-1 Introduction the semiconductor industry
1. Semiconductor industry
Semiconductors are extremely important in virtually all areas of life. They are vital for many consumer products.
This industry has changed society in uncountable ways. Semi- conductors are installed in virtually all technical equipment, ranging from dish- washers, microwave ovens and flat screens to machine to
9. n-type Semiconductor에서 온도에 따른 Carrier 농도 변화
매우 낮은 온도에서는 intrinsic EHP가 거의 존재하지 않는다. 온도가 증가함에 따라 도너의 전자들이 Conduct band로 옮겨지고 약 100K에서 모든 도너 원자가 이온화되는 과정이 발생한다. 이후 ni가 Nd와 비등해 질 때까지(intrinsic carrier 농도가 도너 농도와
Ranging from dish-washers, microwave ovens
and flat screens to machine tools.
The use of semi-conductors in cars, trains,
aircraft and ships is constantly expanding.
Mobile devices consist mainly of chips.
Also PCs, servers and pocket calculators owe
their existence to the development of semiconductor.
In industries that percentage of borrowing is high use Return on Assets (ROA), a