PCB drilling

​A circuit board drilling is just like a common drill, except that it is optimized for drilling holes in the printed circuit board as opposed to drilling holes in other materials such as wood. To make a drill on PCB, the first factory should have the PCB drilling file. The drill file is also commonly referred to as an NC (numerically controlled) drill file in the industry. Excellon is the preferred term used with our Wonderful PCB Limited services.


Introduction: Because of the recent implementation of environmental standards, such as RoHS, WEEE, and others in 2006, the use of a lead-free assembly compatible laminate material is now required. The laminate material must withstand the increased temperatures of lead-free assembly without evidence of delamination of the base material.

Models and Heuristics for Component Placement in Printed Circuit Board Assembly

​Introduction: A Printed Circuit Board (PCB) is the base for wiring and supporting surface-mounted, socketed components in electronics. In circuits where there is a need for find conductive traces (such as computer systems), these PCBs are made through the photolithographic process. This is similar to the way conductive paths are made for processors just that it is on a much larger scale.

Metal Core PCB an Ideal Solution to Thermal Issues in PCB and PCBA

Up to now, thermal dissipation methods leveraged by high-tech circuits can hardly meet the demands on thermal dissipation set by later circuits, calling for a new type of thermal solution. Based on discussion on some prevalent thermal dissipation methods used in electronic products, Metal Core PCB (MCPCB) is introduced as a solution to thermal issues in advanced circuits.

Let your customer interested in your products

Introduction: As a PCB and PCBA manufacturer in China, company should do somethings advanced to absorb your customer’s eyes. You know there are too many pcb manufacturer in China. One would like to show your advanced thing to make you win in the competitive line.

How to Clean PCBs after Surface Mount Soldering

Whenever electronics products go through soldering, flux or other types of contaminants are always left on the surface of PCBs (Printed Circuit Boards) even if halogen-free no cleaning flux is applied. Based on my experience, never trust "no clean" too much. One word, PCB cleaning after surface mount soldering plays an essential role in guaranteeing reliability, electrical functions and life time of electronic products.

Flexibility in Printed Circuit Board Assembly

Introduction: In simplest terms, printed circuit boards can be defined as intricately designed pathways created by metallic insertions for electricity to transfer smoothly, in order to reach the components of the electronic devices. This easy movement of electric power helps the electronic devices to operate fluently without interruption. After creating the printed circuit boards, the next important step is to assemble them efficiently for completion of the mechanism.

Effective Measures to Improve Solder Mask Plugged Via Manufacturing Technology

​Via holes play a role in contributing to electrical connection between layers in PCB (printed circuit board). Solder mask production for via holes didn't need to be especially emphasized. Along with the development trend towards light weight, thinness and miniaturization of electronic products, however, PCB has started moving towards increasingly higher density.

Through-hole technology

​Through-hole technology (tht), also spelled "thru-hole", refers to the mounting scheme used for electronic components that involves the use of leads on the components that are inserted into holes drilled in printed circuit boards (PCB) and soldered to pads on the opposite side either by manual assembly (hand placement) or by the use of automated insertion mount machines.

Comparison between Ultra Fine Pitch QFP and BGA and Their Development Trend

Through-hole technology (THT) that started flourishing with IC (integrated circuit) in 60s has been gradually replaced by the first generation of SMT (surface mount technology) that came onto the stage as early as 80s along with the rapid development of LSI at the later phase of 70s. Peripheral packages have become the main stream of electronics packages with QFP (quad flat package) as an example.