Lily's Column

13 Common PCB Soldering Problems to Avoid

by Lily Zhang

13 Common PCB Soldering Problems to Avoid

Hand soldering has always been considered a hallmark skill to have in every electronics maker’s repertoire of geeky skills. Soldering has never bee...
Posted in HDI PCB, PCB, PCB design, PCB fabrication, soldering

Avoiding the 7 Most Common PCB Assembly Defects

by Lily Zhang

Avoiding the 7 Most Common PCB Assembly Defects

Why Do Circuit Boards Fail PCB Assembly? For prototyping, low-volume, and high-volume production, PCB assembly is an important stage of manufacturi...
Posted in MCPCB, PCB, PCB design, PCB fabrication, pcba, smt, soldering

The difference of PCB Back Drilling and Controlled Depth Drilling

by Lily Zhang

The difference of PCB Back Drilling and Controlled Depth Drilling

What is back drilling or controlled depth drilling in PCB? PCB Back drilling is one of the special controlled depth drilling (NPTH) in the loop of ...
Posted in HDI PCB, High-frequency PCBs, PCB, PCB design, PCB fabrication

Guidelines to via holes treatment method in PCB design

by Lily Zhang

Guidelines to via holes treatment method in PCB design

When you finish your PCB layout design and then you can send it to PCB manufacturers who provide custom circuit board service to have your PCB boar...
Posted in HDI PCB, High-frequency PCBs, PCB, PCB design, PCB fabrication, pcba

The importance of FPC stiffener

by Lily Zhang

The importance of FPC stiffener

The Flex PCB stiffener refers to a stiffener attached to the back of the FPC when a widget such as a connector is attached to the FPC. From the...
Posted in Flexible PCB, FPC, FPC Flexible PCB, PCB, PCB design, Rigid Flex PCB

What is stiffener in Flexible PCB?

by Lily Zhang

What is stiffener in Flexible PCB?

Flexible Printed Circuit Board, often called FPC, is a kind of circuit board with high reliability and good flexibility using polyimide as the sub...
Posted in Flexible PCB, FPC, FPC Flexible PCB, PCB, PCB design

What is Gold Finger?

by Lily Zhang

What is Gold Finger?

What is Gold Finger? PCB Gold Fingers refer to a row of gold-plated strips at the edge of a PCB, which are commonly used to connect different elec...
Posted in PCB, PCB design, PCB fabrication, rigid-flex pcb

What is Reflow Soldering and Wave Soldering?

by Lily Zhang

What is Reflow Soldering and Wave Soldering?

In PCBA processing, There are two common soldering methods: Reflow soldering and wave soldering. What is the function of reflow soldering, what ...
Posted in PCB, PCB design, PCB fabrication, pcba, smt

8 Design Tips for High Frequency(HF) Core PCB Board

by Lily Zhang

8 Design Tips for High Frequency(HF) Core PCB Board

The goal of core board design is to be smaller, faster, and less costly. Since the interconnection point is the weakest link in the circuit chain, ...
Posted in HDI PCB, PCB, PCB design, PCB fabrication

What is Dielectric Constant in PCB?

by Lily Zhang

What is Dielectric Constant in PCB?

What is Dielectric Constant’s significance? The PCB dielectric constant is measured as the stuff electrical absorbency to total space electrical pe...
Posted in PCB, PCB design, PCB fabrication

What is PCB Tombstone?

by Lily Zhang

What is PCB Tombstone?

Introduction The tombstone phenomenon is that during welding process of the MLCC and PCB, one end of the MLCC leaves the welding area and is incli...
Posted in PCB, PCB design, PCB fabrication, pcba, smt

Basics of eFuses (electronic fuses) for PCB

by Lily Zhang

Basics of eFuses (electronic fuses) for PCB

OVERVIEW eFuse, or electronic fuse, is an IC (integrated circuit) that can replace conventional fuses or other protection devices like re-settable ...
Posted in PCB, PCB design