What does the dot mean on a PCB?

It is UV cure glue to hold the component during wave soldering. You can see the arrow at the top of the image. Which shows the direction the pcb should go through the wave. Also the IC package has big pads at the end which is also a wave soldering trick. 5.

What are the connections on a PCB called?

Male PCB Connectors are often referred to as Pin Headers, as they are simply rows of pins. Female PCB Connectors can be called Sockets, Receptacles, or sometimes even Header Receptacles.

What are the holes in PCB?

There are 3 types of holes in a PCB, Plated Through Hole (PTH), Non-Plated Through Hole (NPTH) and Via Holes, these should not be confused with Slots or Cut-outs.

What is onboard IC?

Each die is then physically bonded to the PCB. Three different methods are used to connect the terminal pads of the integrated circuit (or other semiconductor device) with the conductive traces of the printed circuit board. In “wire bonding”, the chip is attached to the board with an adhesive.

What is PCB header?

PCB (Printed circuit board) headers are a type of electrical connector that allows you to join connections to a PCB using a single block. Typically headers have one side that is designed to be surface mounted and soldered onto the board with the other side allowing connections.

Are PCB holes connected?

If extra wires need to be used, or are used for principal reasons, they are typically routed entirely on the copper side of perfboards, because, as opposed to stripboards, nearby holes aren’t connected, and the only hole in a pad is already occupied by a component’s lead.

What is COB package?

Chip-on-Board, or COB, refers to the semiconductor assembly technology wherein the microchip or die is directly mounted on and electrically interconnected to its final circuit board, instead of undergoing traditional assembly or packaging as an individual IC.