How to Make PCB Silkscreen Stencil Step by Step
1. Screen Stretching Process Cleaning the Screen Frame EdgesDue to repeated use, residual adhesive, mesh fragments, and debris may accumulate on the edges of the screen frame. These must be [...]
PCB Inspection Guide: 9 Key Tips to Avoid Costly Mistakes
When inspecting PCB boards, it is critical to pay attention to details to more accurately ensure product quality. Below are nine key points to note during PCB inspection: 01 Nine [...]
PCB Inner Layer Process: Panel Layout Explained
Definition of Panel Layout: Before laminating multi-layer boards or base materials, it is necessary to align and stack inner layers, prepregs, copper foils, and other loose materials with steel plates, [...]
Understanding CTI and PTI Tests for Insulating Materials
The tests of the relative tracking index (CTI) and the proof tracking index (PTI) of non-metallic materials are important safety parameters in the general inspection items of electrical appliances. These [...]
The Design of Multi – layer PCBs: Eight Steps
A multi - layer PCB is a special type of printed circuit board. Its location is usually quite special. For example, multi - layer PCBs can be found in circuit [...]
How to Debug a PCB Before Powering It Up
When a circuit board is soldered, and you want to check if it works, you should not power it on directly. First, do the following steps. Only after making sure [...]
Reasons Why There is Need to Have Flexible Circuit Board
You and even everyone must be aware of the fact that these days, as per the rapidly evolving technological world, electronic devices are becoming not only smaller but also lighter [...]
PCB Plugging: What It Is, Why It Matters, and How It’s Done
The via hole is used to connect the circuits to each other. The development of the electronics industry has also promoted the development of PCBs, and also put forward higher [...]
An In-Depth Look at the Reflow Soldering Process
Reflow soldering is a key process in the electronics industry, primarily used to attach surface-mount components to printed circuit boards (PCBs). It involves applying solder paste at specific locations on [...]
Brazing vs Soldering: What You Need to Know
In the fields of metal processing and electronic manufacturing, brazing and soldering are both extremely important joining techniques. They each possess unique characteristics and application scopes. Mastering this knowledge is [...]
Comparison of Immersion Gold and HASL Processes for PCBs
In PCB manufacturing, Immersion Gold and HASL (Hot Air Solder Leveling) are two common surface finishing techniques. Below is a brief comparison of the two: Process Overview Immersion Gold: Gold is chemically [...]
A Complete Guide to Solder Paste Inspection (SPI)
1. The Role of SPI In the SMT process, solder paste printing is a critical step. Studies show that 80-90% of SMT defects come from this phase. That's where SPI [...]