Major applications: PCBA BGA/IC LED Aliminum die casting Battery connector inspecting 1. Semiconductor package 2. Electronic connector module. 3. Original Package 4. Aerospace components 5. Medical appliances 6. Automation components X-ray In
New Equipment | Test Equipment
X-Ray inspection system SMT/Semicon/Solar/Connector/LED High-definition image: Slanting/Bridge/Voids/Cold Solder/Bonding wire 90KV 15 um closed X-ray tube,with long life,maintenance in free 1.3million high resolution digital flat panel detector
New Equipment | Solder Materials
KappFree solder is a Lead Free, Cadmium Free formulation designed specifically to replace Lead solders in Copper and Stainless Steel plumbing, and in electrical and electronic applications. KappFree is simple, effective and easy to use in both manufa
High quality PCB depaneling machine / V-cut PCB depanelizer,multi-blade depaneling machine,Pcb Separator Feature 1. The shaft of the knives( top and bottom) is design to be an an integral whole, it is convenient to install, pick and place. 2.T
PCB Depanelizer Machine -YSVC-1 Specification model YSVC-1 Max cutting length 330mm cutting thickness 1.0-3.5mm Power supply 110/220 cutting speed 0-400 Machine size 420*280*400mm Weight 45kg &nb
New Equipment | Solder Materials
KappFree solder is a Lead Free, Cadmium Free formulation designed specifically to replace Lead solders in Copper and Stainless Steel plumbing, and in electrical and electronic applications. KappFree is simple, effective and easy to use in both manufa
Technical Library | 2014-07-10 17:37:18.0
This paper studies and compares the effects of pull–pull and 3-point bending cyclic loadings on the mechanical fatigue damage behaviors of a solder joint in a surface-mount electronic package.The comparisons are based on experimental investigations using scanning electron microscopy (SEM) in-situ technology and nonlinear finite element modeling, respectively. The compared results indicate that there are different threshold levels of plastic strain for the initial damage of solder joints under two cyclic applied loads; meanwhile, fatigue crack initiation occurs at different locations, and the accumulation of equivalent plastic strain determines the trend and direction of fatigue crack propagation. In addition, simulation results of the fatigue damage process of solder joints considering a constitutive model of damage initiation criteria for ductile materials and damage evolution based on accumulating inelastic hysteresis energy are identical to the experimental results. The actual fatigue life of the solder joint is almost the same and demonstrates that the FE modeling used in this study can provide an accurate prediction of solder joint fatigue failure.
Technical Library | 2015-06-22 16:39:47.0
Surface finishing is an integral part of any PCB fabrication. It is generally applied to exposed Cu connectors and conductors on the board. Surface finishing has numerous important functions. It serves as a protective layer for the Cu connectors during storage. The surface finish helps minimize or reduce tarnish of the Cu substrate. Additionally, since it is the layer that comes into contact with other components during assembly, it ensures good solderability between the PCB and the component during assembly. Furthermore after assembly, the finish helps prolong the integrity of the solder joint during use. A general review of common PCB surface finishes is presented. The advantages and disadvantages of each are discussed and compared.
Shenzhen zhuomao is located in Shenzhen, China.SHENZHEN ZHUOMAO TECHNOLOGY CO.,LTD - Seamark Group The leading manufacturer of BGA/SMT rework, X-ray inspection system, TV LCD panel laser repair for 13 years in China. Established in 2005, we have coo
Training Courses | | | PCB Rework and Hand Soldering Courses
The PCB rework and hand soldering courses courses cover techniques of rework and repair of PCBs, BGAs and other electronics assemblies, and teach fundamentals of soldering of electronics assemblies.
