Evaluation of solder joint strengths under ball impact test

2007 ◽  
Vol 47 (12) ◽  
pp. 2179-2187 ◽  
Author(s):  
Yi-Shao Lai ◽  
Hsiao-Chuan Chang ◽  
Chang-Lin Yeh
Keyword(s):  
Solder Joint ◽  
Impact Test ◽  
Ball Impact

scholarly journals Microstructures and Drop Impact Test of SAC305, Sn58%Bi and Epoxy Sn58%Bi Solder Joint on the OSP Surface Finished PCB Substrate

2018 ◽  
Vol 36 (2) ◽  
pp. 14-20
Author(s):  
Kyung-Yeol Kim ◽  
Haksan Jeong ◽  
Woo-Ram Myung ◽  
Seung-Boo Jung
Keyword(s):  
Solder Joint ◽  
Impact Test ◽  
Drop Impact ◽  
Drop Impact Test

Design Guideline for Ball Impact Test Apparatus

2006 ◽  
Vol 129 (1) ◽  
pp. 98-104 ◽  
Author(s):  
Chang-Lin Yeh ◽  
Yi-Shao Lai
Keyword(s):  
Impact Test ◽  
Test Apparatus ◽  
Design Guideline ◽  
Ball Impact ◽  
Test Methodology ◽  
Force Profile ◽  
Reliability Of Solder Joints ◽  
Board Level ◽  
Board Level Reliability ◽  
Test Process

The ball impact test is developed as a package-level measure of the board-level reliability of solder joints in the sense that it leads to brittle intermetallic fracturing, similar to that from a board-level drop test. Following classical structural dynamics principles, the ball impact test process is analyzed to provide insights into transient characteristics of this particular test methodology. A design guideline for the ball impact test apparatus based on characteristics of the measured impact force profile is proposed.

A STUDY ON DAMAGE BEHAVIOR OF GLASS BY OBLIQUE IMPACT OF STEEL BALL

2006 ◽  
Vol 20 (25n27) ◽  
pp. 4291-4296 ◽  
Author(s):  
CHANG-MIN SUH ◽  
DONG-KYUN KIM ◽  
MOON-HWAN LEE
Keyword(s):  
Finite Element ◽  
Crack Length ◽  
Impact Test ◽  
Oblique Impact ◽  
Steel Ball ◽  
Crack Growth Behavior ◽  
Soda Lime Glass ◽  
Ball Impact ◽  
Damage Behavior ◽  
The Impact

The damage behavior of soda-lime glass was studied by oblique impact test with a steel ball, and in order to investigate the effect of roughness damage on glass, variable damages and strength degradation of smooth and Al 2 O 3 sand blasted for roughness glass was investigated by the ball impact test. After the test, the crack patterns were investigated using a stereo-microscope. In addition, the finite element method was performed to analyze the stress distribution and variation in the glass impacted obliquely by the steel ball. As a result of the impact test, the crack length of 90° impacted glass was the largest and that of 50° impacted glass was the smallest. In particular, as the impact velocity and diameter of the steel ball increased, the difference in crack length was prominent. The finite element analysis showed the maximum principle stresses distribution in the contact area of glass specimen. The result of analysis was accorded with the crack growth behavior by the oblique impact test.

Sign in / Sign up

Export Citation Format

Share Document