source:News release time:2024-01-11 Hits: Popular:PCB Assembly company
Pads:
The metal contact area used for soldering components, ICs, and other pins is usually made of copper material surface.
Through hole:
Through holes, also known as metalized holes, can connect different levels of leads in double-layer and multi-layer boards, serving as a common hole that maximizes the allocation of lead space on the board.
Usually, through holes are made into circular solder pads, so the main parameters of through holes are the outer diameter of the hole and the drilling size. Can maximize the lead space on the board.
Through hole:
Through holes are divided into metal through holes and non-metal through holes, among which non-metal through holes are mainly used for fixing and are commonly used for screw holes. They are holes without copper plating; The surface of the metal hole will be coated with copper, which can be used for grounding and power supply.
Wire:
A copper film used for connecting electrical network pins of components.
Connector:
Components used for connecting circuit boards, such as connector terminals.
Fill:
Copper laying for ground wire network, this copper laying is fully covered and does not affect the network of pipelines. The filled areas are all connected together and have any shape.
Solid Fill:
This is similar to filling, except that filling is usually rectangular, while solid filling is of any shape.
Copper laying:
Use the idle space on the PCB as a reference plane, and then fill it with solid copper, which is also called copper filling. The copper laying operation can effectively reduce impedance. However, not all boards require copper to be laid everywhere, and it is necessary to choose whether to lay copper or not according to the actual situation. (Generally, the red part is covered with copper)
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