Industry Directory | Equipment Dealer / Broker / Auctions / Manufacturer
Enjoy hot water anytime with solar water heater in Vadodara. We are a top solar water heater manufacturer and supplier. Contact us now!
Industry Directory | Distributor / Equipment Dealer / Broker / Auctions / Manufacturer
Zetech was established in 1986 with the intention of supplying Industrial Equipment, Manufacturing Equipment, Consumable Materials, Software and Technical Support to the Electronics and Manufacturing Industry in South Africa.
Technical Library | 2019-12-26 19:13:52.0
Plated through hole (PTH) plays a critical role in printed circuit board (PCB) reliability. Thermal fatigue deformation of the PTH material is regarded as the primary factor affecting the lifetime of electrical devices. Numerous research efforts have focused on the failure mechanism model of PTH. However, most of the existing models were based on the one-dimensional structure hypothesis without taking the multilayered structure and external pad into consideration.In this paper, the constitutive relation of multilayered PTH is developed to establish the stress equation, and finite element analysis (FEA) is performed to locate the maximum stress and simulate the influence of the material properties. Finally, thermal cycle tests are conducted to verify the accuracy of the life prediction results. This model could be used in fatigue failure portable diagnosis and for life prediction of multilayered PCB.
Technical Library | 2021-08-11 00:55:44.0
In this article, the influence of shrinkage tensile stress in potting materials on the anti-overload performance of a circuit board was studied. Firstly, the phenomenon of shrinkage tensile stress in common potting materials was analyzed, and it was found that the commonly used potting adhesives displayed large shrinkage characteristics. Secondly, a small experiment was set up to verify that the shrinkage tensile stress of potting adhesives would lead to printed circuit board (PCB) deformation, and the shrinkage stress was contrary to the acceleration direction of overload. Thirdly, the influence of potting adhesives on the overload resistance of the PCB was analyzed.
Technical Library | 2022-01-26 15:22:33.0
Reliability of conformal coatings used to mitigate tin whisker growth depends on their ability to contain tin whiskers. Two key material properties required to assess the reliability of a polyurethane coating are documented experimentally: adhesion strength and puncture strength. A modified blister test using a predefined blister area is employed to assess the adhesion strength and a puncture test is employed to evaluate the puncture strength of the coating. After measuring the properties at time zero, the coatings are subjected to accelerated testing conditions (high temperature/humidity storage and temperature cycling) and the degradations of the coating properties are documented.
Industry News | 2005-09-07 09:49:34.0
Sun Microsystems to Host Oct 4 Meeting
Our focus is on supplying a layout solution that targets critical bottlenecks in your design process. Supermax ECAD is a technology independent layout environment that gives you the freedom to choose the best mix of EDA tools to face your design chal
Our focus is on supplying a layout solution that targets critical bottlenecks in your design process. Supermax ECAD is a technology independent layout environment that gives you the freedom to choose the best mix of EDA tools to face your design chal
TEKYONG is established in Dong Guan of China, providing top service for the growing demands of SMT industry. To top service our clients effectively,we have organized our company into specific teams to deliver customized demand,service and solutions f
New Equipment | Wave Soldering
Peak series soldering machine shows superiority in performance, stability, reliability, safety, operability and maintainability. Aims to reduce customer operational cost (especially reduced the solder dross and oxidation significantly) and improves s
winsouce.jpg)