Technical Library | 2020-12-07 15:26:06.0
Temperature cycling testing is a method of accelerated life testing done to PCCs that are exposed to normal operation temperature variations over its lifetime. During the testing, intermittent "open" failures can first occur at the hot and cold extremes of the test, exposing weaknesses in the design and assembly. A poor/weak solder joint fatigues, a via trace or barrel cracks, loose connections or a component fails all causing an intermittent open. When not at extreme temperatures, the PCC assembly relaxes, the "open" closes creating electrical connectivity. If you are monitoring the PCC under test in-situ you will know that an intermittent failure has occurred, and the test could be stopped for inspection. If in-situ monitoring was not implemented, you would not know if there were intermittent failures or not. The PCC gets powered up and works fine at room temperature.
Lyra Reflow Oven is a soft soldering that realizes the mechanical and electrical connection between the solder ends of surface mount components or the pins and the printed board pads by remelting the solder paste pre-distributed on the printed board
Industry News | 2022-11-11 07:33:41.0
Lyra Reflow Oven is a soft soldering that realizes the mechanical and electrical connection between the solder ends of surface mount components or the pins and the printed board pads by remelting the solder paste pre-distributed on the printed board pads.
Technical Library | 2019-05-29 01:47:22.0
1.Vias near SMD pads: Solder can flow into the via after melted. As a result cold joint will appear in the end. Check the picture below. 2.Vias on SMD pads: Solder can flow into the via more easier after melted. Check the picture below. 3.Via opening without soldermask covered. When workers solder TH parts by hand, soldering iron can touch vias sometime, then tiny amounts molten solder will stay on vias. This can lead to electrical short easily. We recommend you make all vias tenting (covered by solder mask) if it is possible.
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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.
GenX Series X-ray Inspection Systems The new GenX series x-ray inspection systems come in three model choices corresponding to the power level of their specific x-ray source and can be configured with various detectors to provide a wide range of hi
New Equipment | Rework & Repair Equipment
The Hakko FX-888D is an updated digital version of the popular FX-888 and includes several new features. User selectable preset temperatures and digital calibration simplify user setup and operation, and the new password protection and low temperatur
Industry News | 2018-10-18 08:17:09.0
How to Prevent Solder Joint Voiding and Cold Solder Defects during the SMT Reflow Process
Online Automatic Optical Inspection Machine N600 AOI machine is used to do inspect before or after soldering,Inspection Items include: 1.The printing: yes,no,skewed,little tin,much tin,and short circuit, pollution 2.Components inspection:mis
