Journal of Applied Reliability (한국신뢰성학회지:신뢰성응용연구)
- Volume 8 Issue 4
- /
- Pages.155-166
- /
- 2008
- /
- 1738-9895(pISSN)
- /
- 2733-8320(eISSN)
A Study on Estimation Model of Resistance Value from Change of PTH Crack Size
PTH Crack을 고려한 저항 변화 추정 모델
-
Kim, Gi-Young
(Department of Industrial Engineering, Ajou University)
;
-
Park, Boo-Hee
(Department of Industrial Engineering, Ajou University)
;
-
Kim, Seon-Jin
(Department of Industrial Engineering, Ajou University)
;
- Yoo, Ki-Hun (Department of Industrial Engineering, Ajou University) ;
- Seol, Dong-Jin (Department of Industrial Engineering, Ajou University) ;
-
Jang, Joong-Soon
(Department of Industrial Engineering, Ajou University)
;
- Lee, Hyung-Rok (Samsung Electro-mechanics) ;
- Kim, Tae-Hyuk (Samsung Electro-mechanics)
-
김기영
(아주대학교 산업공학과)
;
-
박부희
(아주대학교 산업공학과)
;
-
김선진
(아주대학교 산업공학과)
;
- 유기훈 (아주대학교 산업공학과) ;
- 설동진 (아주대학교 산업공학과) ;
-
장중순
(아주대학교 산업공학과)
;
- 이형록 (삼성전기) ;
- 김태혁 (삼성전기)
- Published : 2008.12.30
Abstract
PTH cracks are caused by the mismatch of coefficient of thermal expansion(CTE) between polymer and laminated materials, and are one of the main failure mechanisms of multi layer boards. In spite of its importance, it is usually hard to measure or detect them because of its small size and invisibility. To detect PTH cracks more effectively, this paper proposes a theoretical model that can estimate the resistance value from crack size of PTHs. Using four-point probe resistance measurement method, the resistance value of test coupons is measured. Through measured data, we verify the validity of the proposed theoretical model and set up criteria of failure.
Keywords