Paper is directed to improvement of a FMEA (Failure Mode and Effects Analysis) procedure in the field of reflow lead free soldering by the use of an ontology paradigm. Some ontology editor tools, suitable for our intention, are presented. Particular phases of ontology utilization for development of more exact approach to the FMEA procedure of reflow lead free soldering are analyzed. A proposal of a user's guide for the FMEA procedure based on an ontology paradigm is presented. This user's guide is included in university courses Management of Production Quality and Complex Quality Control provided by the Department of Electro-Technology.