Lily's Column

PCB Drilling

by Lily Zhang

PCB Drilling

The PCB Drill Tech Basically, there are two kinds of drilling technologies, mechanical and laser drilling. Mechanical and laser drilling compariso...
Posted in PCB, PCB fabrication, PCB manufacturing, PCB Milling

HDI board stack-ups

by Lily Zhang

HDI board stack-ups

HDI board stack-ups High-density interconnect, or HDI, circuit boards are printed circuit boards with a higher wiring density per unit area than tr...
Posted in PCB, PCB design, PCB fabrication, PCB Layer stack-up, PCB layout, PCB manufacturing

How are multilayer circuit boards made?

by Lily Zhang

How are multilayer circuit boards made?

Step 1: Inner layer core selection PCB core material The stack-up designates the materials to be used for the manufacture of a multilayer circuit...
Posted in PCB, PCB design, PCB fabrication, PCB Layer stack-up, PCB layout, PCB manufacturing

PCB stack-up

by Lily Zhang

PCB stack-up

What is a PCB stack-up? 6 layer PCB stack-up (thickness in inches) Stack-up describes the construction of a multilayer board in sequential order....

What is LoRa & LoRaWAN?

by Lily Zhang

What is LoRa & LoRaWAN?

Wireless communication is a big part of the online space, and several architectures exist for this type of network. One of them is LoRa, which func...

11 Best High-Speed PCB Routing Practices

by Lily Zhang

11 Best High-Speed PCB Routing Practices

1.Route high-speed signals over a solid ground plane As a rule of thumb, it’s most beneficial to have a common ground plane below signal traces. Fo...

Difference Between Photodiode and Phototransistor

by Lily Zhang

Difference Between Photodiode and Phototransistor

Photodiode and phototransistor are often confused with each other for their similar operation. Both are semiconductor-based components used for sen...

How To Read Capacitor Value?

by Lily Zhang

How To Read Capacitor Value?

Capacitor Standard Codes Generally, the values of capacitance, voltage rating, tolerance and even the polarity (in case of polarized capacitor) a...

Digital Logic Gates Symbols

by Lily Zhang

Digital Logic Gates Symbols

Diodes Symbols

by Lily Zhang

Diodes Symbols

Generic Diode This symbol represents a generic diode or a rectifier diode. It is an electronic component made of semiconductor that allow current ...

How is a solder mask applied?

by Lily Zhang

How is a solder mask applied?

Given below is the process for application of solder mask layer onto a PCB: Step 1: Board cleaning The board is cleaned to remove dirt and other co...

PCB Solder Mask Types

by Lily Zhang

PCB Solder Mask Types

Solder mask is a thin layer of polymer that is put on a circuit board to protect the copper from oxidation and shorts during operation. It also pro...
Posted in PCB, PCB fabrication, PCB manufacturing