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The entire process of manufacturing printed circuit boards follows the steps below for many applications:
Basic Procedures for Production Printed Circuit Boards:
1. Setup - the entire process of determining materials, processes, and needs to meet up the customer's specs for the board design on the basis of the Gerber file information provided with the purchase purchase.
2. Imaging - the process of transferring the Gerber file data for a layer onto an etch resist film that is positioned in the copper layer that is conductive.
3. Etching - the original procedure of exposing the copper along with other areas unprotected by the etch resist movie to a chemical that eliminates the unprotected copper, leaving the protected copper pads and traces in place; more recent procedures use plasma/laser etching in the place of chemical compounds to eliminate the copper material, allowing finer line definitions.
4. Multilayer Pressing - the entire process of aligning the conductive copper and insulating dielectric levels and pushing them under heat to stimulate the adhesive in the dielectric layers to form a solid board product.
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Tabbed cells come with the steel connector strips currently attached to the front "sunny part face" associated with cells, this strip has a free end very long enough to lay across the after mobile. These tab strips will connect the front of 1 mobile to your contact points on the straight back of this next, an such like. Many cells are negative in the front side and positive in the straight back and so let the current to movement between the cells in your panel.
Exactly why are tabbed cells good? Well, Like I stated, there's a large amount of work involved in soldering cells that are untabbed. Essentially you must solder a metal that is new strip to your front of every cell Before you decide to even examine connecting your cells together. Quite simply, you are doing a job that is double that adds up to hours of fiddly work with fragile solar cells. Therefore, my advice is, purchase tabbed cells. In addition, the soldering iron should really be good quality 65 to 75Watt adjustable product set at about 700F. You risk damaging the cells if you run the soldering iron too cold, the solder will not run properly, too hot and.