New Equipment | Assembly Services
The board is designed by customer and it's for Network interface controller. We did one-Stop EMS Service for this project (PCB manufacture, components sourcing, SMT and THT assembly): Product name: 8 Layer HDI PCBA board Material: FR-4 TG180, Shengy
New Equipment | Assembly Services
The board is designed by customer and it's for Set-Top Box PCBA board. We did one-Stop EMS Service for this project (PCB manufacture, components sourcing, SMT and THT assembly): Product name: 4 Layer PCBA board Material: FR-4 TG180, Shengyi Thicknss
New Equipment | Assembly Services
The board is designed by customer and it's for TV Box PCBA board. We did One-Stop EMS Service for this project (PCB manufacture, components sourcing, SMT and THT assembly). Product name: 4 Layer PCBA board Material: FR-4 TG170 Thicknss: 1.6mm Surfac
Technical Library | 2021-12-29 19:37:20.0
The purpose of this study was to compare the strength of the bond between resin and glass cloth for various composites (laminates) and its dependence on utilized soldering pad surface finishes. Moreover, the impact of surface finish application on the thermomechanical properties of the composites was evaluated. Three different laminates with various thermal endurances were included in the study. Soldering pads were covered with OSP and HASL surface finishes. The strength of the cohesion of the resin upper layer was examined utilizing a newly established method designed for pulling tests.
Industry Directory | Manufacturer
PCB Global is a dedicated Prototype Quick Turn High Tech. PCB supplier - Quotes and orders can be processed 24/7/365 - free online quotation visit www.pcbglobal.com
Technical Library | 2014-01-23 16:49:55.0
As reliability requirements increase, especially for defense and aerospace applications, the need to characterize components used in electronic assembly also increases. OEM and EMS companies look to perform characterizations as early as possible in the process to be able to limit quality related issues and improve both assembly yields and ultimate device reliability. In terms of BGA devices, higher stress conditions, RoHS compatible materials and increased package densities tend to cause premature failures in intermetallic layers. Therefore it is necessary to have a quantitative and qualitative test methodology to address these interfaces.
Technical Library | 2019-06-20 00:09:49.0
It is well known that during service the layer of Cu6Sn5 intermetallic at the interface between the solder and a Cu substrate grows but the usual concern has been that if this layer gets too thick it will be the brittleness of this intermetallic that will compromise the reliability of the joint, particularly in impact loading. There is another level of concern when the Cu-rich Cu3Sn phase starts to develop at the Cu6Sn5/Cu interface and an imbalance in the diffusion of atomic species, Sn and Cu, across that interface results in the formation at the Cu3Sn/Cu interface of Kirkendall voids, which can also compromise reliability in impact loading. However, when, as is the case in some microelectronics, the copper substrate is thin in relation to the volume of solder in the joint an overriding concern is that all of the Cu will be consumed by reaction with Sn to form these intermetallics.This paper reports an investigation into the kinetics of the growth of the interfacial intermetallic, and the consequent reduction in the thickness of the Cu substrate in solder joints made with three alloys, Sn-3.0Ag-0.5Cu, Sn-0.7Cu-0.05Ni and Sn-1.5Bi-0.7Cu-0.05Ni.
Industry News | 2008-03-15 15:22:12.0
OSAKA, JAPAN � March 2008 � Nihon Superior USA, a subsidiary of Nihon Superior Co. Ltd., an advanced soldering supplier to the worldwide market, announces that it will showcase a new, expanded range of SN100C products in booth 249 at the upcoming APEX exhibition and conference, scheduled to take place April 1-3, 2008 in Las Vegas.
New Equipment | Solder Materials
A variety of printed circuit boards require protection of selected board areas during the Surface Finish or Assembly Process. A wide range of PEELABLE SOLDER MASKS, the SD 295X Series including the popular SD 2954 and SD 2955 provide such protection
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New Equipment | Fabrication Services
High-density integration (HDI) technology enables the miniaturization of end product design while meeting higher standards of electronic performance and efficiency. Eastech has been focusing on high precision circuit board, continuously investing in
