Lithography
Types of Photolithography Processes
Photoresists 는 빛, 전자에 민감한 감광성의 중합체로서 positive 와 negative의 두 가지 타입으로 나눌 수 있다.
Positive: 마스크와 같은 형상을 새김
Negative: 마스크와 반대 형상을 새김
Stereo lithography (3차원 리소그라피)
가장 널리 쓰이는 형상 구현 기술
액
장비를 사용하여 접촉저항을 측정한다.
f. 단면 관찰을 위해 시편을 cold-mounting 하고 폴리싱한다.
g. 광학현미경으로 단면관찰을 한다.
4. 실험 예비 문제
a. 실리콘 태양전지의 제작 공정에 대한 조사(P-type Si wafer ~ Firing 공정)
b. 타 연구 그룹에서 제시한 Ag crystallite의 형성기구를 정리
1. 파일 관리용 명령어
컴퓨터의 효용 가치를 높이는 것 중의 하나로 데이터 관리의 유용성을 들 수 있다. 즉, 컴퓨터에서 데이터를 보관하고 필요한 경우에 언제든지 다시 열람할 수 있고, 보관되어 있는 데이터를 다른 작업에 사용할 수 있다.
이러한 유용성을 갖는 데이터는 곧 컴퓨터의 효용성을
1. Listening Comprehension
1~3) Listen to the following and answer the question.
Pre-history
Prior to the release of bitcoin there were a number of digital cash technologies starting with the issuer based e-cash protocols of David Chaum and Stefan Brands. Adam Back developed hashcash, a proof- of-work scheme for spam control. The first proposals for distributed digital scarcity based cryp
1 Introduction
When designing an aircraft, it’s all about finding the optimal proportion of the weight of the vehicle and payload. It needs to be strong and stiff enough to withstand the exceptional circumstances in which it has to operate. Durability is an important factor. Also, if a part fails, it doesn’t necessarily result in failure of the whole aircraft.
The main sections of an aircra
History of Vinegar식초의 역사
Vinegar = vin (wine) + aigre (sour) 식초 = vin (와인) + aigre (시다)
The world’s the oldest cooking ingredient and food preservation method.
가장 오래된 식재료 & 식품 보관 방법
History of almost 10,000 years
약 10,000년의 역사
Vinegar's history of
foreign country
Sterilizing action of vinegar was used fo
1. The Necessity of the Study
1.1 . Natural Disasters in Korea on the Rise
Humankind in modern society has been leading an affluent life by virtue of the rapid scientific progress. However, we are never safe from natural disasters such as a typhoon and an earthquake which are powerful enough to bring it down.(A Research on the Actual Condition of the Victims of Natural Disasters in Korea and
1. The Necessity of the Study
Natural Disasters in Korea on the Rise
Korea never safe from natural disasters such as a typhoon and an
earthquake
Typhoon
"Rusa“(2002) and "Maemi“(2003) property damage by 4 trillion won
-hundred thousand victims.
Earthquake
-16 from 1978 to 1996
-41 from 1997 to 2010
The Lack of Supply of
Temporary
wooden ones. The early 1900s saw the adoption of closed container boxes designed for movement between road and rail.
In the United Kingdom, several railway companies were using similar containers by the beginning of the 20th century and in the 1920s the Railway Clearing House standardised the RCH container. Five or ten foot long, wooden and non-stackable, these early standard containers were
1. 서 론
1.1 Paper-based microfluidics
Patterned paper에서 적은 양의 fluid가 capillarity에 의해 이동하는 것을 이용한 analytical device.
1.1.1 Advantages
Inexpensive, easy to handle, eco-friendly, light와 같은 이점을 지닌다.
1.1.2 Applications
Biochemical analysis, medical test, forensic diagnostics 등에서 특정 물질을 detection하는 데에 주로