LED Placement Machine Editing Program
The principle of assembling MSDs within a specified production life may sound like a straightforward requirement, but in a production environment
Actual implementation is always challenging. Because standards are sometimes misunderstood (and there is no easy way to do what is required), there are large differences between actual manufacturing procedures. There are no documented manufacturing procedures to track and control MSDs. Instead, some very cumbersome systems have been built, consuming a lot of time and energy and making it nearly impossible for production operators to follow.
Between these extremes, most companies build feasible, simplified work procedures with many assumptions. This in turn causes components that need to be baked to be baked together when they are assembled. The first scenario will affect material availability, solderability and result in wastage of expensive components. The first question related to MSD control is the identification of the trays and reels, once removed from their protective dry bags, how are these trays and reels with components identified? If components are not received in dry bags, or if the bags are not properly identified, there is a risk that they may be handled as non-moisture-sensitive components. During the process, it is said that material handlers and operators must have a convenient and reliable Methods to identify part numbers and related information, including moisture sensitivity levels.
So when reels contain MSDs, they should clearly identify their sensitivity level. Nonetheless, even when the reel is properly identified, this information may become unreadable when the reel is loaded on a feeder or on an adjacent feeder on a placement machine.
A number of large barriers prevent assembly manufacturers from properly controlling damage to MSDs. In many cases, there are adequate written procedures, but they become artificially non-followable right away. This creates a large number of unacceptable defects. PCB assembly operations should re-evaluate their MSD work procedures on the latest IPC/JEDEC standards. While the control of moisture hazards is just as important as static damage, it does not receive the same attention. New systems and methods are required to provide viable and reliable solutions to such problems in production environments.
