A-TECH countersunk pcb has gone through several production links. They may involve casing mold production, circuit board production, injection molding, stamping, surface treatment, and assembly. 2.
It can continually regulate the skin's microclimate. As the skin gets hot, the heat is absorbed, and as it cools, that heat is released. 3.
Excellent structural strength is one of the obvious advantages of this product. It has been verified with the ability to endure the heavy load working conditions. 4.
It can eliminate the chemicals which may affect people's health and makes the pool water healthier and cleaner for swimming. 5.
Many of our customers praised that the product is highly resistant to washing and rubbing. What makes them surprised is that it keeps its color perfectly.
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.
A-TECH CIRCUITS Co., Ltd. is a well known manufacturer of blind vias pcb
in China 2.
Advanced equipment plays an important role to the high quality via in pad pcb
of A-TECH CIRCUITS Co., Ltd.. 3.
We are firmly committed to improving the quality of our products and processes on an ongoing basis, and we will unceasingly strive for targeted innovation in this field. We always adhere to the business philosophy of "customer-oriented" service. All of our efforts aim to bring customers the most stable quality products and the best quality service. As a responsible company that attaches high importance to our surroundings, we are working hard on reducing production emissions such as waste gas and cut resource waste. We are determined to achieve energy-saving and the environmentally-friendly manufacturing way in the future. We will upgrade the old waste treating equipment with more effective ones, and make full use of every kind of energy resources to reduce energy waste.