... CIRCUIT BOARDS | | HOLE BREAKOUT | A condition in which a hole is not completely surrounded by the land. | HOLE DENSITY | | PRINTED WIRING BOARDS | The quantity of holes in a printed board per unit area. | HOLE LOCATION | - The dimensional location of the center of a hole. | PRINTED WIRING BOARDS | | HOLE PATTERN | The arrangement of all holes in a printed board. | HOLE PREPARATION | The hole prior to plating shall be clean | PRINTED WIRING BOARDS | cut and free of burrs, loose or hanging fibers, copper dust and resin dust. | HOLE PULL STRENGTH | The force (in pounds) necessary to | PRINTED WIRING BOARDS | rupture a plated-through hole when loaded or pulled in the direction of the axis of the hole. | HOLE |Void A void in the metallic | PRINTED WIRING BOARDS | deposit of a plated-through ...
[ Printed Wiring Boards ]... that are performed by the fabricator. Generally, the most knowledgeable front-end employees are those with experience in the production environment and who taught front-end | PRINTED WIRING BOARDS | engineering. Through cross-training of this nature, front end becomes an efficient extension of the manufacturing process. Knowledge of the following items is critical: * Etch | PRINTED WIRING BOARDS | compensation (based on the copper weight requirement). * Plating balance of parts on the panel. * Hole size based on plating requirement. * Drill hit | PRINTED WIRING BOARDS | optimization. * Spacing for the shearing of parts that require gold tip plating. * Thieving on part, if necessary. * Panel border minimums. * Piece | PRINTED WIRING BOARDS | size minimums if tested via flying probe tester (test in piece or in panel form). * Where the cross- section process should take place or | PRINTED WIRING BOARDS | whether it should take place in multiple processes. * Organization of any special tools (drill or router bits, for example) for "out of the ordinary" | PRINTED WIRING BOARDS | processes. * Material availability, either in-house or on ...
[ Printed Wiring Boards ]... RAPID MASS PRODUCTION (RMP) is a new and unique express service for large and medium-sized series ( 3 to 30 qm production size). The | PRINTED WIRING BOARDS | manufacture of multi- layers takes only 9 working days and double-sided pressings only 7 ! ( Minimum charge: 10% of order value). So far, express | PRINTED WIRING BOARDS | services have been mostly in the realm of prototype manufacturers, but RMP is on offer to all customers who recognise the market opportunities resulting from | PRINTED WIRING BOARDS | accelerated product launches or speedier completion of orders. The following brief feature describes the manufacturing concept that we have developed to achieve just such a | PRINTED WIRING BOARDS | solution: Apart from technical specialisation, the market in multi-layer business is divided largely into two groups: those that manufacture in the largest possible series, and | PRINTED WIRING BOARDS | those that produce prototypes and mini series in the fastest possible time in order to encourage the development of new products. Their strengths, however, are | PRINTED WIRING BOARDS | also their weaknesses. The fast producers must ...
[ Printed Wiring Boards ]