What is through hole plating?
Through holes on a PCB refer to a hole that is drilled from the top and through to the bottom of a PCB, these can be plated (PTH) or non-plated (NPTH). Through holes became plated-through holes (PTH) in order for the components to make contact with the required conductive layers.
Is a via a plated through hole?
The connection through the dielectric layer(s) is most commonly created by a punched, drilled or laser cut hole called a via. This feature is also referred to as a thru hole or plated thru hole (PTH).
What is meant by through hole?
Through-hole technology (also spelled “thru-hole”), refers to the mounting scheme used for electronic components that involves the use of leads on the components that are inserted into holes drilled in printed circuit boards (PCB) and soldered to pads on the opposite side either by manual assembly (hand placement) or …
What is a non-plated through hole?
Non-plated through holes are simple features that are either drilled or milled through your circuit board, which expressly do not receive a plating of conductive copper. Typical uses of NPTH features are mounting holes to allow screws or other fasteners to pass through your board.
Can a plated hole pass through an unplated hole?
Note: For mechanical mounting holes that are not plated, there is no need to place capture pads on the outer layers. Clearance hole- the hole etched in a copper plane to allow a drilled hole to pass through. The hole may be plated or unplated. Hole shadow- the shadow cast through all PCB layers by the drilled hole.
What is the via fill and through hole plating process?
The innovative plating process is an advanced, direct current acid copper system offering via filling and simultaneously through hole plating[9]. The plating is uniform over the cathode surface and no TH thin knee or “s lope” is observed around the THs.
How are non plated trough holes different from plated through holes?
Non-Plated Trough Holes (NPTH) As its name says, in this type of Through Holes there is no copper plated onto the walls of the holes, so the barrel of the hole has not electrical properties. They were very popular when Printed Circuits only had copper tracks printed on one side, but their use decreased as the number of layers in PCBs increased.
What kind of hole is plated through copper?
Clearance hole- the hole etched in a copper plane to allow a drilled hole to pass through. The hole may be plated or unplated. Hole shadow- the shadow cast through all PCB layers by the drilled hole.
