Lisa's Column

Boost Your PCB Reliability Issues By Preventing Conductive Anodic Filament

by Sales pcb hero

Boost Your PCB Reliability Issues By Preventing Conductive Anodic Filament

Conductive Anodic Filament (CAF) is an important phenomenon to understand in printed circuit board (PCB) manufacturing because it can cause serio...
Posted in circuitdesign, design, PCB design

What needs to be checked after the PCB design is completed based on experience

by Sales pcb hero

What needs to be checked after the PCB design is completed based on experience

1. Check the high-frequency, high-speed, clock and other fragile signal lines to see whether the loop area is the smallest, whether they are far aw...
Posted in PCB design

Summary of six reasons why PCB pads are not easy to tin

by Sales pcb hero

Summary of six reasons why PCB pads are not easy to tin

We all know that the PCB pads are not easy to be tinned, which will affect the placement of components, which indirectly leads to the failure of su...
Posted in #PCBA, PCB fabrication, PCB manufacturing

A good way to apply copper to PCB

by Sales pcb hero

A good way to apply copper to PCB

Copper pouring is an important part of PCB design. Whether it is domestic PCB design software or some foreign Protel, PowerPCB provides intelligent...
Posted in PCB design

Methods for Balanced PCB Stackup Design

by Sales pcb hero

Methods for Balanced PCB Stackup Design

Designers may design odd-numbered-layer printed circuit boards (PCBs). If the routing doesn't require the extra layer, why use it? Wouldn't reducin...
Posted in #PCB design

How to deduce the schematic diagram from the PCB board?

by Sales pcb hero

How to deduce the schematic diagram from the PCB board?

In the research of PCB reverse technology, reverse deduction schematic diagram refers to reverse deduction based on PCB file diagram or directly de...
Posted in reverse engineer, Reverse Engineering

Why is the test effect not good after adding a shield?

by Sales pcb hero

Why is the test effect not good after adding a shield?

Questions to discuss: I added a shield when designing, and the result is that the effect of not adding a shield is better than that of adding a sh...
Posted in PCB design, PCB fabrication, pcb testing

Some common tips for PCB design beginners

by Sales pcb hero
It is recommended that beginners compare the following basic principles one by one while wiring. After the wiring is complete, check it again with ...
Posted in PCB design

Eight Steps to Ensure PCB Design Success

by Sales pcb hero

Eight Steps to Ensure PCB Design Success

The printed circuit board (PCB) is the body of an electronic product, and the performance, life, and reliability of the final product depend on the...
Posted in PCB design

Four things to pay attention to when calculating impedance in PCB design

by Sales pcb hero

Four things to pay attention to when calculating impedance in PCB design

In the high-speed PCB design process, stackup design and impedance calculation are the first ladder to the top. The impedance calculation me...
Posted in Impedance, Impedance Control PCB, PCB design, PCB Impedance Matching

Several Common Methods of MCU Program

by Sales pcb hero

Several Common Methods of MCU Program

Recently, | saw a friend ask a relatively basic question, probably asking: What are the common methods of programming MCU? Let's talk about the thr...
Posted in #microcontroller, IC, MCU

The working principle of the MCU reset circuit The MCU power-on reset circuit diagram sharing

by Sales pcb hero

The working principle of the MCU reset circuit The MCU power-on reset circuit diagram sharing

The MCU reset circuit is composed of capacitors connected in series with resistors. From the figure and the nature of "capacitor voltage cannot cha...
Posted in circuit, PCB design