How to use Shape I and examples
Having the very fine tip end, this shape is best for soldering micro components such as 0603, etc and for repairing high-density-mounting P.W.Bs. such as in cellular phones, etc. However, the heat capacity of Shape I is very small and the heat may not be transferred to workpiece sufficiently, which caused the insufficient solder (It’s called Red Eye generally.).
Soldering tiny chip parts such as 0603
Very fine tip end makes it easy to solder a tiny chip.
Soldering at the narrow pitches
It is easy to work with Shape I at the narrow pitches in which the tip end of Shape B touches the nearby ICs.