Industry News | 2011-12-30 23:35:59.0
Nihon Superior will issue a new series of guides on “Key Factors in the Selection of Lead-Free Solders.” This series is intended to address the challenges in choosing a reliable lead-free solder. The first guide in the series is titled “Reliability of Lead-Free Solder in Thermal Cycling.”
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
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
Ensuring that electronics products function as they are designed to is just one piece of the materials solution Henkel delivers. Protecting printed circuit boards and electronic assemblies from thermal cycling and adverse environmental conditions is
Career Center | Sunnyvale, California USA | Engineering
Our client is a leading equipment supplier to electronic assemblers around the world. Responsibilities: Conduct technical analysis of product implementations, modifications and enhancements to product in accordance with specific customer specifi
Industry News | 2022-07-16 08:39:50.0
SHENMAO America, Inc. is pleased to announce that the PF918-S Lead-Free BGA Sphere features the newly designed high-reliability alloy PF918 that can achieve tensile strength performance 1.4 times higher than the typical SAC305 alloy.
Industry News | 2011-04-07 20:23:54.0
Zymet Inc. has introduced a reworkable edgebond adhesive, UA-2605, that improves thermal cycle performance of CBGAs and plastic BGAs. In one trial, UA-2605 tripled the 0°C to +100°C performance of a CBGA, to nearly 2500 cycles. Previously, an underfill was needed to achieve this level of performance.
Technical Library | 2019-03-06 21:26:14.0
Electronic assemblies use a large variety of polymer materials with different mechanical and thermal properties to provide protection in harsh usage environments. However, variability in the mechanical properties such as the coefficient of thermal expansion and elastic modulus effects the material selection process by introducing uncertainty to the long term impacts on the reliability of the electronics. Typically, the main reliability issue is solder joint fatigue which accounts for a large amount of failures in electronic components. Therefore, it is necessary to understand the effect of polymer encapsulations (coatings, pottings and underfills) on the solder joints when predicting reliability.This paper presents the construction and validation of a thermo-mechanical tensile fatigue specimen. The thermal cycling range was matched with potting expansion properties in order to vary the magnitude of tensile stress imposed on solder joints
Technical Library | 2018-07-11 22:46:13.0
For a demanding automotive electronics assembly, a highly thermal fatigue resistant solder alloy is required, which makes the lead-free Sn-Ag-Cu type solder alloy unusable. Sn-Ag-Bi-In solder alloy is considered as a high reliability solder alloy due to significant improvement in thermal fatigue resistance as compared to a standard Sn-Ag-Cu alloy. The alloy has not only good thermal fatigue properties but it also has superior ductility and tensile strength by appropriate addition of In; however, initial results indicated a sub-par performance in joint reliability when it is soldered on a printed circuit board (PCB) with Electroless Nickel Immersion Gold (ENIG) surface finish. Numerous experiments were performed to find out appropriate alloying element which would help improve the performance on ENIG PCBs. Sn-Ag-Bi-In solder alloys with and without Cu additions were prepared and then tests were carried out to see the performance in a thermal fatigue test and a drop resistance test.to investigate the impact of Cu addition towards the improvement of joint reliability on ENIG finish PCB. Also, the mechanism of such improvement is documented.
New Equipment | Test Equipment
A temperature control system for high-speed and high-temperature testing of components, sensors, and PCBs has been introduced by inTEST Thermal. The Thermostream® ATS-750 delivers clean dry air from -90 to 300C to support growing demands for testing
