High temperature solders - may have a dull appearance - Touch-up (rework) - Use discretion to avoid causing additional problems Typical tin-lead connections - Shiny to a satin luster - Smooth appearance - Exhibit wetting as - concave meniscus between the objects being soldered. As an exception, the solder connection to a termination may exhibit a wetting angle exceeding 90° Figure 5-1(C, D), when it is created by the solder contour extending over the edge of the solderable termination area or solder resist.ħ The primary difference between the solder connections created with processes using tin-lead alloys and processes using lead-free alloys visual appearance of the solder This standard provides visual criteria for inspections of both Figures specific to lead-free connections will be identified with the symbol shown in Figure5-3. Presentation on theme: 'IPC-A-610E SOLDERING.'- Presentation transcript:Ģ MODULE OVERVIEW Soldering Acceptability Requirementsģ Module Objective Upon completion of this session, the participant will be able to identify the acceptability requirements for soldered assemblies and high voltageĤ Soldering Nature of the soldering process may dictate that an acceptable condition may have the same characteristics for all three classes Where appropriate, the type of soldering process used is addressed The connection criteria apply regardless of which methods ĥ Exception : Some specialized soldering finishes require special acceptance criteria, not found in the IPC-A-610E Immersion Tin Palladium Gold Criteria should be based on design, process capability and performance requirementsĦ Figure 5-1 Figure5-1 (A, B).

Ipc a 610e pdf