![]() The other important factor is the circuit density and component types. 2 Characterizing chemical residues that exist on a manufactured assembly, and assessing the impact of those residues on electrical performance, has much to do with the end-use environment in which the hardware will operate. ![]() In a qualified manufacturing process (QMP), manufacturing materials and processes used to produce electronics hardware are benchmarked and validated against electrical performance in hot/humid conditions. Objective evidence shall be available for review.” 1 ( Ed.: N1D2D3 means no requirement has been established for Class 1, and the condition is a defect in Classes 2 and 3.) IPC J-STDF-001G states, “Unless otherwise specified by the User, the Manufacturer shall qualify soldering and/or cleaning processes that result in acceptable levels of flux and other residues.
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