Category Archives: Technical Knowledge

Ingenious skills of PCB board layout and processing of process defects

As PCB board size requirements are getting smaller and smaller, the device density requirements are getting higher and higher, and the PCB board design is becoming more and more difficult. How to achieve a high routing rate of the PCB board and shorten the design time, let’s talk about the design skills of PCB board planning, layout […]

Why FR4 Material is Commonly used in PCB Fabrication?

FR4 material is the most common grade dielectric material that is used in the fabrication of circuit boards. This material is incorporated in single-sided, double-sided, and multi-layered boards. Here are a few qualities of FR4 materials that make them popular: Wide range of operating temperatures (50°C to 115°C) Higher Tg value (about 180°C) Offers decent mechanical […]

Introduction of Nickel Electroplating Process for Printed Circuit Board

1. Function And Characteristics Nickel plating is used as the substrate coating for precious metals and base metals on PCB (the abbreviation of Printed Circuit Board). It is also commonly used as a surface layer for some single-sided printed boards. For some surfaces that are heavily worn, such as switch contacts, contacts, or plug gold, using […]

How To Make PCB At Home

PREPARATION BEFORE MAKING PCB PCB Design PCB design is usually done by converting your circuit’s schematic diagram into a PCB layout using PCB layout software. There are many cool open-source software packages for PCB layout creation and design. Some are listed here to give you a head-start: Autodesk Eagle PCBWizard Designing a Circuit Schematic in Autodesk Eagle p.s.In […]

Basic Process And Skills of PCB Processing

1. Preliminary Work of Circuit Board Design in PCB processing 1.1 Use the schematic design tool to draw the schematic diagram and generate the corresponding network table. While in some special cases, such as the circuit board is relatively simple, and the network tabl   e is already available, it is not necessary to design the […]

When shuold the bare board testing be used?

A bare board and the bare board testing process have critical roles to play in the printed circuit board (PCB) creation. In PCB development, the bare board layout determines your placement of through holes and electronic components. This PCB substrate also defines a finished board’s connections through its printed circuits. By using bare board testing […]

PCB Lead-free regulations

Until recently, lead was almost ubiquitous in the construction of printed circuit boards (PCBs). Due to its melting point and ability to form strong bonds between surfaces, a eutectic lead-tin alloy proved highly effective as a solder material. However, as electronic waste volumes increased, the use of lead in circuit boards came under scrutiny in […]

Failure Caused by the PCB Printing Material

The quality of the PCB screen printing image and the film-forming state of the screen printing material are affected by the performance of the printing material. During the PCB screen printing process, the faults caused by the printing material include (1) plugging holes, (2) the reverse side of the printed board being contaminated by printing material, (3) […]

Wet Process and PCB Surface Treatment_Part 3

27. Sand Blast It uses strong air pressure to carry various small particles ejected at high speed and spray them on the surface of the object as a surface cleaning method. This method can be used for rust removal of metal, or to remove difficult-to-tangle dirt, etc., which is very convenient. The types of sand […]

Wet Process and PCB Surface Treatment_Part 2

14. Etching Resist Refers to the part of the copper conductor that is to be protected from corrosion, and the anti-corrosion film layer made on the copper surface, such as image transfer photoresist, dry film, ink pattern, or tin-lead coating, etc. are all anti-corrosion resists agent. 15. Hard Anodizing Also known as “hard anodic treatment”, […]