PCB Card Cloning Procedures
SIGN OFF procedures can effectively protect and restrain the designer and manufacturer after pcb card cloning, not only request PCB manufacturers to provide component with qualified standards for their customers, meanwhile, require PCB designer to provide a more standard, and DESIGN FOR MANUFACTURE design solution through duplicate printed circuit board.
As for the pcb card design and manufacturer, high speed pcb card SIGN OFF ( pcb card must be verified by signal integrity simulation ) can have a equal important meaning. As for the traditional design procedures, each one of the pcb card cloning and design procedure must use the high speed signal integrity verification test tool to proceed the analysis and verification regardless the time clock rate in the replicating circuit card. design engineers must ensure the signal integrity issue in the design process must be solve before them being delivered to manufacturers.
Consequently, design engineers will have confidence to believe their product has better quality. Since all of the design and cloning result will be present to the scene of end user, unpredictable signal integrity issue won’t emerge again. And design engineer doesn’t need to worry about if a proper design restriction in the PCBA replication has been brought to tackle the signal integrity issue, or if engineers have do their utmost to deal with the critical high speed signal line issue. SIGN OFF verification from signal integrity of pcb card layout can eliminate the risk and concerns from engineers.
Which kind of simulators can provide the optimal solutions to the signal integrity analysis? The ideal simulator can provide the analysis to a whole pcb card or several different pcb cards simultaneously, not only individual signal line analysis on the pcb card. Speed is another critical element and accomplish the signal integrity analysis on the reasonable period of time is also very important.
Those signal integrity analysis engines which are base upon the SPICE will be able to provide a better analysis preciseness after copy pcb board, however the analysis process will require longer time than expectation and the speed of analysis can be slower, as a result of that, these kinds of tools are not quite practical.
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