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Technical Memo

Demand for low-cost materials in the market can lead to poor-quality electrical components and PCBs in deteriorated condition. These components and PCBs tend to build up thick oxid

Preface Koki has been providing “Defect Analysis Service” to determine the root cause of the various defects experienced by our valued customers upon request as a part of custo

SAC305(Sn, Ag3.0%, Cu0.5%) has long been the main stream of lead free solder alloy composition. The alloy composition costwise is vulnerable to metal price fluctuation as Ag, ofte

Using mobile telephones as a typical example, whilst downsizing of the electronic devices continues, more and more space saving components, such as BGAs and CSPs, are being widely

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