Soldering Tip: Shape K

How to use Shape K + Examples

Shape K

This type has a shape like a knife and is capable of soldering by applying the tip in 3 ways: line, face and point. It is used for soldering at narrow pitches, correction of bridging and drag soldering

Soldering Tiny Chip Parts (0603)

Hakko Soldering Tip Shape K T30-KU Place the point of the soldering tip to the leads while laying down the entire blade.
*Photo shows T30-KU with an N2 system iron for pre-heating effect.

NOTE: Some IC are specified by the manufacturer not to be touched on the electrode by tip end.

Drag Soldering

Place the point of the soldering tip to the leads while laying down the entire blade. Feed the solder and drag the tip downwards slowly. 

NOTE: Apply flux to the leads and land pads before soldering. It helps to prevent problems such as solder bridges. 

Shape K Drag Soldering (PTH)

Pin Though Hole (PTH)
Lay the blade down with the face flush against the board to transfer sufficient heat. 

Shape K Drag Soldering (PTH)
Shape K Drag Soldering (QFP)

Quad Flat Pack (QFP)
Lay the blade down with the line portion flush against the leads. Ensure that the tip does not come in contact with the IC

Shape K Drag Soldering (QFP)

Correcting Bridging

Shape K Correcting Bridging (Small)

If the bridge amount is small

Stand the tip on the pointed end and drag the tip slowly through the solder bridge.

 NOTE: Operate with a clean tip

Shape K Correcting Bridging (Small)
Shape K Correcting Bridging (Large)

If the bridge amount is large

Lay the blade down on the bridge and drag the tip outwards slowly. 

NOTE: Operate with a clean tip

Soldering at Narrow Pitches

Shape K Narrow Soldering

Stand the blade on the pointed end on the leads of the IC chip. Ensure that the tip does not come into contact with the IC. 
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