Circuit Boards Producer plated through hole circuit.

... system yields total process cost reduction Panel Plating a Flash of Copper The panels are online in a wet state transferred to our automatic | CIRCUIT BOARDS PRODUCER | electrolytic copper plating lines to get a flasch of copper.. The panels are attached to plating racks. When the racks are moved to the loading | CIRCUIT BOARDS PRODUCER | station, the system computer instructs the hoist to pick up the rack and begin the plating cycle. The copper plating time is approximately one hour. | CIRCUIT BOARDS PRODUCER | Electrolytic copper of minimum thickness 12 microns is deposited on the surface of the panel and on the walls of the drilled holes. This is | CIRCUIT BOARDS PRODUCER | achieved by applying an electric current to a cell comprising the panel (the cathode) and a set of copper bars (the anodes) suspended in a | CIRCUIT BOARDS PRODUCER | conducting medium (the electrolyte). A plating history log is maintained on the shop floor control computer which assists the operator in making minor adjustments to | CIRCUIT BOARDS PRODUCER | the plating current. Finally, the panels are rinsed and returned to the unload station. Sample measurements are ...
[ Circuit Boards Producer ]


... | A process wherein printed boards are brought in contact with a gently overflowing wave of liquid solder which is circulated by a pump | CIRCUIT BOARDS PRODUCER | in an appropriately designed solder pot reservoir. The prime functions of the molten wave are to serve as a heat source and heat transfer medium | CIRCUIT BOARDS PRODUCER | and to supply solder to the joint areas. | WEBBING | Unwanted threadlike deposits of solder on insulated areas. | WETTING | The formation of | CIRCUIT BOARDS PRODUCER | a relatively uniform, smooth, unbroken, and adherent film of solder to a base material immediately upon contact. | WIRE-BONDING | Connecting technique using thin metal | CIRCUIT BOARDS PRODUCER | wire connections between a component and the ...
[ Circuit Boards Producer ]


... to maximise board real estate by increasing the density of lines and pads. However, many manufacturing and design issues must be addressed before adventuring | CIRCUIT BOARDS PRODUCER | down this path. Due to the many additional oper- ations, the cost of a blind or buried via board is significantly higher than that of | CIRCUIT BOARDS PRODUCER | a multilayer of the same layer count. | BURIED VIAS | A buried via is a copper-plated hole, imbedded in the board, that interconnects two | CIRCUIT BOARDS PRODUCER | internal layers. The buried via process starts by drilling holes on thin core laminate. These cores are then metallised, imaged and etched before being laminated. | CIRCUIT BOARDS PRODUCER | Individual manufactuer´s method of fabricating multilayer boards mast be understood before designing bboards with buried vias. Designed an manufactures layer sequence must match | BLIND | CIRCUIT BOARDS PRODUCER | VIAS A BLIND VIA | is a copper-plated hole that interconnects a board's external layer to one or more internal layer(s) but not through to | CIRCUIT BOARDS PRODUCER | the other external layer. There are two possible methods of achieving blind ...
[ Circuit Boards Producer ]