Why do we need to drill holes into PCBs?

The drilling process is the foundation for vias and the connectivity between different layers. The downsizing of electronic devices such as TVs and phones has led to the transformation from stationary to portable. High-quality micromachining is required to bring down the size.

What are the black dots on a circuit board?

Its actually called Chip On Board or [COB], and the black blob is the protective covering given to the bare bone chip which is the brain of any device that is in.

What are the round things on circuit boards?

Transistors are crucial to the printed circuit board assembly process due to their multi-functional nature. They are semiconductor devices that can both conduct and insulate and can act as switches and amplifiers.

How are holes drilled in PCB?

The PCB Drilling Processes Used for Hole Fabrication The standard method of drilling a thru-hole in a circuit board is to run the board with all of its layers laminated through the NC drilling machine. Later on, the holes will be plated inside and out as required to complete fabrication.

What is a plated through hole?

The most common embedded component in a printed circuit board (PCB) is a plated through hole (PTH), which serves as a conductive conduit from one layer of the board to another. They are created by drilling a hole in the board and plating the inside with a conductive material, usually copper.

Can a burnt motherboard be repaired?

Repairing a burnt circuit board takes a steady and delicate hand. Motherboards are printed circuit boards which contain resistors, transistors, capacitors and other electrical components. Any computer owner can repair his motherboard by using some special products and tools, and following easy repair steps.

What are the blue things on a circuit board?

Blue PCBs allow the assembly of data or electrical circuits into a functional piece of hardware. They offer necessary electrical connections and mechanical support via conductive pathways. They are blue in color not because their paint, dye, or mark is blue but due to their resemblance to the solder mask.

Can you drill holes in a PCB?

Single-sided or double-sided PCB will be drilled directly after getting on the production line. Multi-layer board will be drilled after pressuring layers. By classification of the function, different drilling holes can be divided: parts hole, tool hole, through the hole, blind hole, Buried hole.

What is plated holes in PCB?

Plated and Non-Plated Trough Holes Through-hole technology, also spelled “thru-hole” are holes that go completely through the boards. With plated through holes there is a conductive path from one side of the board to the other, as seen on Figure 1.