... heavy data from the workstation to the photoplotter adds another step. Data interpretation is now left to the software rastorization process. This can bog | CIRCUIT BOARDS MAKER | down the plotting station, lead to the misplacement of the draw, crash the rastorization software, and crash the photoplotter. Conversion issues: Error in the conversion | CIRCUIT BOARDS MAKER | from draw to flash. This can happen when a land that is chosen for conversion has an extra length of vector to it, and the | CIRCUIT BOARDS MAKER | CAM software converts the others that are similar to it into the same flash land. It can convert lands designed to be a bit larger | CIRCUIT BOARDS MAKER | (0.002" to 0.003") and also convert them to a smaller size. (a) Allowing the operator and CAM software to convert lands could lead to errors | CIRCUIT BOARDS MAKER | in the design and, later, undesirable output. (b) Unintentional swaping of X and Y locations. (c) Offset or shift of original placement due to the | CIRCUIT BOARDS MAKER | software errors with the datum for the feature. * Conversion of draws is also necessary if the Gerber files used to plot the ...
[ Circuit Boards Maker ]


... microvia formation, which means that each microvia is drilled one at a time at high speed. With this technique, the size of the focused | CIRCUIT BOARDS MAKER | laser beam usually defines the size of the microvia or the drilling speed or both. UV lasers often produce the smallest focal spots (5 to | CIRCUIT BOARDS MAKER | 20 microns in diameter), and when used to form larger vias, the laser beam can either be expanded or trepanned to accommodate the larger diameter. | CIRCUIT BOARDS MAKER | With trepanning, the laser beam usually moves in a full circle or a spiral pattern, starting from the center of the via and removing material | CIRCUIT BOARDS MAKER | as it spirals outward to the circumference of the via. Trepanning, however, affects throughput by reducing the number of vias that can be processed per | CIRCUIT BOARDS MAKER | second at a fixed laser fluence. Laser systems that have broad, high-intensity beams, such as excimers and TEA CO2, can be configured for mass microvia | CIRCUIT BOARDS MAKER | formation using either a projection or conformal mask to image a pattern of microvias onto the panel. The projection method ...
[ Circuit Boards Maker ]


... the market occurs. | "RAPID MASS PRODUCTION“ | is an idea born from the wish to combine the speed of production typical of prototype | CIRCUIT BOARDS MAKER | “rush job” specialists with the reasonable costs associated with manufacturing large series. based their considerations on the observation that complex production methods can also be | CIRCUIT BOARDS MAKER | provided for “mass”, i.e. large amounts rapidly if there are no hitches and production flows smoothly. “Hold-ups” are evident even in state-of- the-art manufacturing due | CIRCUIT BOARDS MAKER | to buffer stocks, i.e. piles of materials waiting for further processing, either because a machine is not yet free or has to be converted. The | CIRCUIT BOARDS MAKER | problem can be best compared with a relay race, in which a smooth handover of the baton to the next runner is essential. Should the | CIRCUIT BOARDS MAKER | runner receiving the baton lose his rhythm because the handover was poorly executed, the team loses valuable time as his acceleration must begin from a | CIRCUIT BOARDS MAKER | reduced speed. This comparison with a relay race also helps to recognise the ...
[ Circuit Boards Maker ]