Company Advantages
1. A series of vital on-site scrutinization for A-TECH blind vias pcb will be conducted. They include inspection of seam strength, stitching, fit, and specifications (size, shape, style). The product has the performance of great stability
2. Some customers said this product is worth the investment as it can make their life and bathroom a little more comfortable and clean. It is 100% produced in accordance with IPC-6012 & IPC-A-600F standards
3. This product is eco-friendly and harmless. The materials or parts used in it are guaranteed to meet the environmental protection standards of European and American. The product has dynamic and mechanical stability
4. The product features excellent wear and tear resistance. It is treated with a special surface technique which makes it withstand heavy use. Its robust structure allows it to be used in harsh environments
5. This product has a focused reflectivity. Its material prevents full diffusion from occurring to provide greater control over the washout effects of ambient light. Being laminated by advanced vacuum lamination equipment, it has a uniform dielectric thickness after lamination

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. Being a specialist in blind vias pcb field, A-TECH has been very notable in this industry.
2. Our company has a skilled workforce. The workers have specialized training or a skill set. They are able to perform without delay, which means far less downtime for our company.
3. Permanent target of A-TECH CIRCUITS Co., Ltd. is to create the top brand in the edge plating pcb industry in the world. Call now!