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1. Strength guarantee▪SMT workshop: It has imported placement machines and multiple optical inspection equipment, china pcb which can produce 4 million points per day. Each process is equipped with QC personnel, who can keep an eye on product quality.▪DIP production line: It has wave soldering. Among them, there are more than ten old employees who have worked for more than three years. The workers are highly skilled and can weld all kinds of plug-in materials. 2. Quality assurance, high cost performance▪High-end equipment can ... more

Solder mask is the core of the dual-row QFN process design.(1) The extension distance of the solder mask thickness on the surface of the via hole pad.(2) The extension distance of the solder mask thickness on the surface of the wire.(3) Solder mask thickness between pads. Case study one:A BGA POE PCB chip introduced by a company is an LGA package with heat sink pads. The center distance of the soldering end of this chip is 0.47mm; the soldering end is a round shape of ∅0.27mm, protruding from the package ground, and the sid... more