... marking offers easements in questions of the product liability and brings a higher acknowledgment at authorities. In order to guarantee the adherence to the | MULTILAYER BOARDS FABRICATORS | examined values, a Follow UP service is furnished. An expert from UL visits regularly our manufacturing areas and controls ranges of our production. In addition | MULTILAYER BOARDS FABRICATORS | we are obligated to submit in certain distances printed circuit boards in the listed remarks to UL for examination. This offers additional security and reliability. | MULTILAYER BOARDS FABRICATORS | You increase your export chances in the USA and Canada, if the printed circuit boards of your products are UL marked. UL stands for "Underwriter | MULTILAYER BOARDS FABRICATORS | Laboratories" Inc., a "non-profit organization", which examines electronic devices and components for the adherence to American safety standards. Also our printed circuit boards were subjected | MULTILAYER BOARDS FABRICATORS | to the hardest tests in the UL laboratories and they existed even the extremely heavy 130 C° long term test. That qualifies us without reservation | MULTILAYER BOARDS FABRICATORS | for the US-American and ...
[ Multilayer Boards Fabricators ]


... electronically recorded in archives for at least 3 years. 4.3 Electrical testing The final test procedure of a PCB is the electrical testing to | MULTILAYER BOARDS FABRICATORS | detect cuts and shorts. Our engineers generate a test programm discribing a network, including all signal lines (start and endings) generated out of the gerber | MULTILAYER BOARDS FABRICATORS | data of the customer. As a middle and high volume manufacturer we use an adapter testing system that simultaneously tests all network lines and points | MULTILAYER BOARDS FABRICATORS | of a PCB. The basic technology of adapter testing is, that conductive needles linked to the test machine are lead by an adapter to the | MULTILAYER BOARDS FABRICATORS | test points of the PCB. The test result is then compared to the electrical network. A failure is detected if a network resistance is measured | MULTILAYER BOARDS FABRICATORS | * bigger than 50 Ohm (cut) * smaller 10 MOhm (short) PCB`s tested without failure are marked by a green line on the edge of | MULTILAYER BOARDS FABRICATORS | the PCB or by a stamp mark. Rejected PCB`s are separated, repaired and retested or finally rejected if repair is not feasible. The ...
[ Multilayer Boards Fabricators ]


... and should contain the following information to ensure that the finished board is to your requirements. - Always required even when a drill file | MULTILAYER BOARDS FABRICATORS | is supplied, to enable inspection of panels immediately after drilling and finished boards prior to despatching. Hole sizes must be clearly represented with distinct differences | MULTILAYER BOARDS FABRICATORS | between each size. Tolerances are not required unless different to our standard of +0.1 / -0.05 mm. - Preferred with overall mechanical dimensions including notches, | MULTILAYER BOARDS FABRICATORS | cutouts and slots. Also preferred is a positioning (datum) dimension (drilled hole is best). Tolerances are not required unless different to our standard of + | MULTILAYER BOARDS FABRICATORS | / -0.25 mm. Other information required for all boards includes: board thickness (standard = 1.6mm) base copper thickness (std = 18mm) solder mask colour (std | MULTILAYER BOARDS FABRICATORS | = green) solder mask type (std = liquid photoimageable) component legend colour (std = white) bare board testing requirement (std for multilayer and fine line | MULTILAYER BOARDS FABRICATORS | production runs) Extra ...
[ Multilayer Boards Fabricators ]