Licky's Column

D2-4 infrared remote control car kit, C51 single chip toy

by Licky Li

D2-4 infrared remote control car kit, C51 single chip toy

Purchase link：D2-4 infrared remote control car kit, C51 single chip toy 1. Kit parametersProduct Model: TJ-56-464Power supply voltage: 4.5V DC powe...
Posted in DIY kit

Ultrasonic Suspension Standing Wave Controller Electronic DIY Production Kit

by Licky Li

Ultrasonic Suspension Standing Wave Controller Electronic DIY Production Kit

purchase link：Ultrasonic Suspension Standing Wave Controller Electronic DIY Production Kit Product Name: Ultrasonic Suspension Production KitInput...
Posted in DIY kit

Free Walking Easy Assembly Robot Kit / Educational Robot Kit

by Licky Li

Free Walking Easy Assembly Robot Kit / Educational Robot Kit

Purchase link:  Free Walking Easy Assembly Robot Kit  1. This robot is a newly developed educational robot teaching kit in line with the progress o...
Posted in DIY kit

3 Steps to determine / calculate number of PCB layers

by Licky Li

3 Steps to determine / calculate number of PCB layers

STEP 1: Choose initial number of layers 1 or 2 Layer PCBs – Home prototypingUse 1 or 2 Layer PCB only for very simple boards, breakouts or for som...
Posted in HDI PCB, PCB, PCB design, PCB fabrication, pcba

Blind vias VS Buried Vias

by Licky Li

Blind vias VS Buried Vias

Blind and buried vias are only available on boards with at least four layers. Unlike regular vias on a two layer board which connect the two surfac...
Posted in HDI PCB, PCB, PCB design, PCB fabrication

What is ball grid array (BGA)?

by Licky Li

What is ball grid array (BGA)?

A ball grid array (BGA) is a type of surface-mount packaging used for integrated circuits. BGA packages are used to permanently mount devices such ...
Posted in BGA, HDI PCB, PCB, PCB design, PCB fabrication, pcba

Which Surface Finish is Right for Your PCBs When Lead-Free Requirement Weighs?

by Licky Li

Which Surface Finish is Right for Your PCBs When Lead-Free Requirement Weighs?

Lead-free PCBs (Printed Circuit Boards) were first called for just for the compliance of ROHS (Restriction Of Hazardous Substances) by EU (Europe ...
Posted in PCB, PCB design, PCB manufacturing, pcba

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

The Fundamental Analysis of QFP vs QFN Packages

by Licky Li

The Fundamental Analysis of QFP vs QFN Packages

QFN package QFN (quad flat no-lead) package is a semiconductor set connecting ASCIC to Printed circuit board (PCB). To achieve this, QFN utilizes S...
Posted in package, PCB design, PCB fabrication, PCB Layer stack-up

Quote PCBA

by Licky Li

Quote PCBA

What is the difference between rigid-flex board assembly and multi-plate system assembly

by Licky Li

What is the difference between rigid-flex board assembly and multi-plate system assembly

Often when we consider multilayer circuit board PCB design, we often think of a combination of board racks or gaming platforms in a server environ...
Posted in Rigid Flex PCB