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KristanFarqu
47 Rue Des Six Freres Ruellan
Sarreguemines, CENTRE 57200
France
03.21.09.43.56 https://electronics-guides.yolasite.com/ *******
soldering station aoyue9. Finishing - the process of coating the pad areas having a thin layer of solder to prepare the board for the ultimate revolution soldering or reflow soldering procedure that will take place at a later date after the elements have already been placed.

10. Silk Screening - the entire process of applying the markings for component designations and component outlines to the board. Can be applied to just the side that is top to both edges if components are attached to both top and bottom edges.

11. Routing - the entire process of breaking up boards that are multiple a panel of identical boards; this method additionally permits cutting notches or slots to the board if required.

12. Quality Control - a inspection that is visual of boards; also can function as procedure for inspecting wall surface quality for plated through holes in multilayer boards by cross-sectioning or other techniques.

13. Electrical Testing - the entire process of checking for continuity or shorted connections regarding the panels by means using a voltage between various points regarding the board and determining in cases where a flow that is current. Based upon the board complexity, this process may necessitate a specially designed test fixture and test system to incorporate with all the test that is electrical employed by the board maker.
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You will find usually two kinds of material used to create a board that is multilayer. Pre-preg material is slim levels of fiberglass pre-impregnated with an adhesive, and is in sheet type, frequently about .002 inches dense. Core material is similar to an extremely double that is thin board for the reason that it has a dielectric material, such as for example epoxy fiberglass, with a copper layer deposited on each side, often .030 thickness dielectric material with 1 ounce copper layer on each part. In a multilayer board design, there are two techniques used to develop the required quantity of levels. The core stack-up method, which is a mature technology, uses a center layer of pre-preg product with a layer of core material above and another layer of core material below. This mix of one layer that is pre-preg two core levels would make a 4 layer board.

The movie stack-up technique, a newer technology, might have core material once the center layer followed by layers of pre-preg and copper product accumulated above and below to form the number that is final of required by the board design, sort of love Dagwood building a sandwich. This process allows the manufacturer freedom in how the board layer thicknesses are combined to meet the finished product thickness demands by varying the amount of sheets of pre-preg in each layer. After the product layers are finished, the complete stack is afflicted by temperature and stress that creates the adhesive into the pre-preg to connect the core and pre-preg levels together as a single entity.