... be completed, it is the operators in the departments themselves who are responsible for the regulation of a smooth flow of production. From the | PCB FAB | first production step, the respective operators promise to complete all RMP orders by a certain date. In this way the operator responsible for the subsequent | PCB FAB | step can have all of his technical and organisational equipment fully prepared to receive the handover of the order. If he knows the time point, | PCB FAB | he is also obliged to “PROMISE” the time of completion by his department so that the following operator can be prepared, and so on. By | PCB FAB | means of a PPS support system expressly developed for this purpose, communication between operators has been simplified to the extent that organisational work is minimal. | PCB FAB | In addition to the organisation, of planning, production was examined to identify time-intensive procedures and ways of improving operational times by means of new machine | PCB FAB | technology or innovative approaches to old manufacturing concepts. Our ...
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... before breakdown occurs. | DIGITAL CIRCUIT | A circuit comprised of mostly integrated circuits which operates like a switch(i.e., it is either "ON" or | PCB FAB | "OFF"). | DIGITIZING | The process of reducing feature locations on a flat plane to digital representation of X-Y coordinates. | DIMENSIONAL HOLE | A | PCB FAB | hole in a printed board where the means of determining location is by coordinate values not necessarily coinciding with the stated grid. | DIMENSIONAL STABILITY | PCB FAB | | A freedom from distortion caused by such factors as temperature, humidity, chemical treatment, age, or stress. | DIP SOLDERING | A process whereby printed | PCB FAB | boards are brought in contact with the surface of a static pool of molten solder for the purpose of soldering the entire exposed conductive pattern | PCB FAB | in one operation. | DISCRETE COMPONENT | A component which has been fabricated prior to its installation (i.e., resistors,capacitors, diodes and transistors) | DRY FILM | PCB FAB | RESISTS COATING MATERIALS | specifically designed for ...
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... between the drills is just right. You hand the data set to the fabricator, and voila! No unexpected phone calls, no changes in the | PCB FAB | layout, and the fabricator happily sends back a good set of boards on time. Our recommendations for the correct storage of PCBs and MLBs A.1 | PCB FAB | ) Brief desricption of the problem: PCB`s, especially Multilayer boards are extremly sensitive towards moisture The microscopic structure of the Multilayer material develops a strong | PCB FAB | capillary power that soaks up the humidity of the surrounding air. Even under very dry conditions it is a question of time that water accumulates | PCB FAB | in the stored PCB`s. For example: At storage conditions of 20 C° and 35 % of humidity the weight of the epoxyraisin of the Multilayer | PCB FAB | PCB`s rises 0,12 % due to the accumulation of moisture. If the capillary effect leads to an increase of more than 0,17 % a gas | PCB FAB | pressure of 8-10 bar can be reached, causing delamination Even if delamination tests are made after production, the danger of ...
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