![]() These should be attached to a range of components with varying degrees of heat dissipation - i.e. The NPI engineer will attach thermocouples to multiple locations across the sample board. If one isn't provided, then the NPI engineer may request one for use during the set-up process. Ideally, the OEM will have provided their assembly partner with a populated printed circuit assembly. Using their skill, judgement and experience, the NPI engineer will select the profile and temperature settings that they believe are best suited to the new assembly. One dedicated to assemblies that contain sensitive parts and require lower temperatures.One dedicated to densely populated assemblies with elevated temperatures.The time taken to perfect the baseline profile will pay dividends as most assemblies will then fall within one of them. Over time, some EMS providers may develop a range of "baseline" profiles, which can then be selected depending on the PCBA they are working on. The New Product Introduction ( NPI) engineer will usually start the process by selecting an oven profile they have used before and that is stored on their system. ![]() So what should your EMS partner be doing to perfect their reflow oven profile? Let's find out. If you fail to profile the oven correctly, then all of the hard work and effort that has gone into loading feeders, programming the machines, optimising the build and then running the production line will be wasted. The reflow oven is used primarily for the reflow soldering of surface mount electronic components to printed circuit boards (PCB). There is however one specific step that can make all of the difference when it comes to quality and consistency - creating the surface mount (SMT) reflow oven profile. But, broadly speaking, the process steps that they go through to produce PCBAs are the same. But consistently producing them in volume can take time to perfect.Įlectronics manufacturing services (EMS) providers may well have their own preferences when it comes to their choice of machine type and brand. Printed Circuit Board Assemblies ( PCBAs) are often viewed as commodity items.
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