Licky's Column

Key Points in Manufacturing Mechanical Blind-Via

by Licky Li

Key Points in Manufacturing Mechanical Blind-Via

Introduction: Mechanical blind through-hole PCB means that both the blind holes and the through-hole of the plate are formed by the process of mech...
Posted in BGA, PCB, PCB design, PCB fabrication, PCB layout, PCB manufacturing

BGA Soldering Quality Detection Techniques by X-Ray Imaging

by Licky Li

BGA Soldering Quality Detection Techniques by X-Ray Imaging

Introduction: BGA is a typical high-density packaging technology. Its characteristics are that the chip pins are distributed under the package in t...
Posted in BGA, PCB, PCB design, PCB fabrication, PCB Layer stack-up, PCB layout, PCB manufacturing

10 golden rules of PCB design

by Licky Li

10 golden rules of PCB design

Rule 1: Choose the right grid-set and always use the grid spacing that matches the most components.  Rule 2: Keep the path shortest and most direct...
Posted in PCB, PCB design, PCB layout, PCB manufacturing

What is DRC PCB ?

by Licky Li

What is DRC PCB ?

What is DRC PCB? DRC PCB is a set of rules adopted by PCB designers. It helps to verify their schematic matches the manufacturing considerations ...
Posted in PCB, PCB design, PCB fabrication, PCB layout, PCB manufacturing

What is the difference between schematic and layout?

by Licky Li

What is the difference between schematic and layout?

The schematic is a drawing that defines the logical connections between components on a circuit board whether it is a rigid PCB or a flex board. It...
Posted in PCB design, PCB layout

Back Drilling --- A special craftsmanship of control depth drilling

by Licky Li

Back Drilling --- A special craftsmanship of control depth drilling

What is Back Drilling? Backdrill is the process of creating vias by removing the stub in multilayered printed wiring boards, to allow signals to fl...
Posted in Back drilling, PCB, PCB design, PCB fabrication, PCB Layer stack-up, PCB layout, PCB manufacturing

How to make your own ESP32 breakout board with minimal circuit

by Licky Li

How to make your own ESP32 breakout board with minimal circuit

Summary：       ESP32 became one of the most common MCU due to its versatile functions. In this tutorial, we will learn how to make a breakout board...
Posted in PCB, PCB design, PCB layout

How to Design a PCB Panel for Less Money?

by Licky Li

How to Design a PCB Panel for Less Money?

Introduction: PCB panel is a combination of several PCB unit boards with various possible connection modes, as shown in the figures below. Typical,...
Posted in PCB, PCB design, PCB fabrication, PCB Layer stack-up, PCB layout, PCB manufacturing

High Frequency PCB Layout Techniques

by Licky Li

High Frequency PCB Layout Techniques

Introduction: The components are developing towards high speed, low consumption, small volume and high anti-interference. PCB design is an importan...
Posted in HDI PCB, PCB design, PCB fabrication, PCB layout

Key points of seven commonly used interface types in circuit design

by Licky Li

Key points of seven commonly used interface types in circuit design

TTL level interface   This interface type is basically a cliché. Starting from college to study analog circuits and digital circuits, for general c...
Posted in PCB design, PCB fabrication, PCB layout

How to achieve PCB automatic routing efficiently?

by Licky Li

How to achieve PCB automatic routing efficiently?

1. Determine the number of layers of the PCB Board size and the number of routing layers need to be determined early in the design process. If the ...
Posted in PCB, PCB design, PCB layout, PCB manufacturing

Single-Layer vs. Multi-layer PCBs

by Licky Li

Single-Layer vs. Multi-layer PCBs

Single-Layer vs. Multilayer PCBs: What's the Difference? You can likely guess what the significant difference is between these two types of PCBs...
Posted in PCB, PCB design, PCB fabrication, PCB Layer stack-up, PCB layout, PCB manufacturing