Silk screen layer: mainly used to print the serial number, production number, company name, etc. of components on printed circuit boards. Where is the next wind outlet in the printed circuit board assembly industry?
Sealing layer: mainly used to mechanically fix the solder paste during soldering, and then place the mounting components in the corresponding positions. If the adhesive residue left on the irregular shaped structure of the solder joint is irregular, it can be judged as a small number of solder joints with poor quality.

Solder resistance layer: mainly used on solder joints to locate SMD components, it is actually a thin metal sheet covering the substrate and base plate. The difference between copper and some metals is the uneven thickness of double-sided copper plating.
S chlorine wire: (including stains, oxidation, corrosion, heat, dielectric (metal, etc. can play a role in insulation), also known as tin wire or electrolytic copper foil, is the simplest single or double sided copper plated copper plate (PTH), also known as "bare copper", composed of copper, zinc, aluminum, etc. It has two types: single sided copper plating, double sided copper plating, and double sided copper plating.

This type of product is mainly used for the insulation layer of double-sided integrated circuits, that is, according to the metallization and brazing used for the board layer.
Automatic line width for (points). Due to its use as a dielectric, the automatic line width can exceed 50mil.
As a new type of interface material, the wet purity of wet film is greatly affected by temperature and humidity. However, wet film is easy to dry and difficult to remove, so many people are accustomed to using wet film.
And the wet film is easy to dry and purify, making it easy to observe with the naked eye. Dry film is easy to remove, while paper needs to be exposed to ultraviolet radiation, which usually takes 8-10 minutes to remove or cannot be removed.
Although we know that wet films are easy to dry, we can avoid the possibility of damage marks on the edges between two surfaces where wet films may occur. Therefore, the wet film will hardly affect your hand operation, reducing damage. Currently, we are conducting initial testing for moisture and mist in the Tripted – chain component. I inspire you by creating moisture.
The iPCB is also made of green leather, which is very suitable for Anzhi - Self spray - RF and odorless environmental protection!
Some iPCB boards have names that are not slender, and there are many boards. I will use the Victoria1490 processor of the iPCB. If the RF signal on your board is transparent, please use your nRF chip.