A-TECH China copper pcb best price at discount

Company Advantages
1. copper pcb from A-TECH CIRCUITS Co., Ltd. have a wide range of material category. It is offered with low dielectric loss
2. This product is an essential part of the most majority of electronic assemblies, power electronic devices, and optoelectronic components. Its solder mask can be offered with green, blue, white, black, yellow, and red colors
3. This product is not likely to be attacked by mildew and bacteria. The fabrics with antifungal fibers are adopted to guard against a majority of bacteria. The product has the performance of great stability
4. This product is not likely to be out of shape. It is made of high-quality fabrics that feature excellent fiber strength, which enables it to withstand repeated stretch. The product can be resistant to corrosion

Plated half holes which is also called castellated holes, they’re normally designed at the edge of printed circuit boards and plated with copper, and they’re mainly used for board-on board connections, mostly where two circuit boards with different technologies are combined.

Most of the plated half hole PCBs are a type of modules which are small and high density with fine pitch components, this type of circuit boards are made with GPS Modules, Wifi Modules, Bluetooth Modules, GMS Modules, GPRS Modules and other smart modules.

Basically plated half holes are not suitable for V-score process, because the copper at the hole will be rolled up to cause serious burs, routing process is a better solution to ensure smooth edge.

The guidelines of designing plated half holes

● Normally the minimum half hole size is 0.8mm, it can be min 0.55mm with A-TECH capability
● The routing tolerance for half hole is +/-0.15mm
● The minimum distance from pad to pad is 0.25mm
● Use the larger hole diameter if possible
● Use the larger outer layer pad on both sides if possible
● Connect inner layer pads to the plated holes if possible to bring more stability and help to avoid burrs.
● Routing process is preferred and ENIG finish is preferred.

A-TECH have manufactured a large number of printed circuit boards with half hole design for various module products, and we have obtained rich experience to control high quality, the minimum half hole size we can build is 0.55mm.

Company Features
1. A-TECH has a whole set of machines to ensure that the quality of copper pcb .
2. A-TECH CIRCUITS Co., Ltd. will design and give the perfect heavy copper pcb for your requirements. Ask online!