... media through a stencil screen with a squeegee. Also called Silk Screening. | SELECTIVE PLATING | A process of plating only a selected portion | PRINTED WIRING BOARDS MAKER | of a contact, usually the mating surface. Two methods can be used. 1)nickel plating the entire contact, then gold plating the selected area, 2) nickel | PRINTED WIRING BOARDS MAKER | plating and then gold flash over the entire contact, and finally a selective heavy gold plating in the desired contact area. | SEMI-ADDITIVE-PROCESS | An | PRINTED WIRING BOARDS MAKER | additive process for obtaining conductive patterns which combines an electroless metal deposition on an unclad substrate with electroplating or with etching, or with both | | PRINTED WIRING BOARDS MAKER | SMOBC SOLDER MASK OVER BARE COPPER. | A method of fabricating a printed wiring board which results in the final metallization being copper with no | PRINTED WIRING BOARDS MAKER | other protective metal but the non soldered areas are coated by a solder resist, exposing only the component terminal areas. | SOLDER LEVELING |The process | PRINTED WIRING BOARDS MAKER | of dipping PCB's into hot liquids, or exposing them to liquid waves ...
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... - Calculator — Online - Ordering Medium Jet Line Medium Jet Line is the preferred Online Marketplace for Quotes and Orders. Rapid turn around | PRINTED WIRING BOARDS MAKER | optional. QS- SPECs IPC-A-600 Class 2. Reasonable, fast and honest. More | Calculate | BASIC JET LINE | Buy a panel area and fill it | PRINTED WIRING BOARDS MAKER | up with your PCBs to your discretion. Applicable for Prototypes in many different shapes and types. More | Calculate Premium Jet Line Suitable for high | PRINTED WIRING BOARDS MAKER | end technology and comprehensive technical requirements. More | Quotes - Order | PRICE INQUIRE: | | Your advantages at a glance Direct-Online saves up to | PRINTED WIRING BOARDS MAKER | 20% * Standard 5 w-days turnaround without surcharge Free registration Express 3 w-days turnaround service Ordering around the clock possible* Personal service until 22:00 hours | PRINTED WIRING BOARDS MAKER | PCBs from 1 to 12 layers RoHS-compliant (Leadfree) Ordering-State can be called at anny time * Always access to your data base * * Valid | PRINTED WIRING BOARDS MAKER | for Basic Jet Line and Medium Jet ...
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... proposals to avoid the described problems: B STORAGE CONDITIONS PCB`s should be stored in heated and dry rooms. Constant low humidity is necessary before | PRINTED WIRING BOARDS MAKER | the soldering processes start. A rapid fall in temperature of more than 7 degrees causes condensation on the stored PCB`s. Humidity should never exceed 65 | PRINTED WIRING BOARDS MAKER | %. The package must be kept intact although the polyethylene packages capability of keeping humidity away is not really reliable. C STORAGE TIME The storage | PRINTED WIRING BOARDS MAKER | time of PCB`s should be as short as possible. PCB`s should be taken out due to the „first-in, first out“ rule. The the polyethylene packages | PRINTED WIRING BOARDS MAKER | should be taken away just before the assembling. Remaining PCB`s should be repacked again. To avoid exposure to draught, the packages should be stored in | PRINTED WIRING BOARDS MAKER | boxes. D SOLDERING TESTS PCB`s stored for over several months and being transported under questionable conditions, should be submitted again to a soldering test, being | PRINTED WIRING BOARDS MAKER | equivalent to your soldering process. E HEAT CONDITIONING ...
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