Often times this can be successive plane evaluation as well. The section will be mounted in an epoxy and carefully ground to the target plane. The area will be cut and removed from the PCB and the cross-section analysis plane identified. Mounted PCB section and component prepared cross-section Mounted connector terminal cross-sectionĪs inspection often will require further evaluation (destructive) per IPC-TM-650, the target areas of the board, component, pin through hole (PTH), via, terminal, solder joint, etc. Presence of macroscopic visible dendrite formation.This inspection requires no destructive analysis but will evaluate and document imperfections in the submitted PCB at low microscopic magnifications such as: RTI maintains expertise in overview evaluation of PCB samples per the inspection criteria identified in IPC-A-610. These evaluations can be critical in determining reliability in proof of concept PCBs or process finished assemblies. The dimensional and inspection sections in IPC-TM-650 (sections 2.1, 2.2 and some of section 2.3) are often outside of the scope of many electronics labs. IPC is the organization (previously titled The Institute for Interconnecting and Packaging Electronic Circuits) that provides the inspection and evaluation standards for printed circuit boards and in some cases, assemblies and exposure and service tested assemblies. The procedures that govern inspection of printed circuit boards, components, and solder joints are described in IPC-TM-650.
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