No. 7.4.3
Soldering Surface Mount J Lead Components Hot Gas Method
OUTLINE
This procedure covers the general guidelines for soldering surface mount J lead
components. There is basically only one style of J lead component. Whether leads
are on two sides or four sides, or whether the component is large or small, the
soldering principles are the same.
TOOLS & MATERIALS
Cleaner
Flux
Hot Air Tool with Tips
Microscope
Solder Paste
Wipes
PROCEDURE
- Add a small bead of solder paste along the row of pads. (See Fig. 1).
- Place the component in position.
- Adjust the pressure and temperature output of the hot air tool.
- Direct the hot air over the component with the hot air tool tip
approximately 2.50 cm (1.00") from the solder joint. This initial heating
will pre-dry the solder paste.
NOTE
Solder paste has a dull flat appearance when dried.
- When the solder paste has dried, move the hot air tool tip to approximately
0.50 cm (0.20") above the component. Move the tool back and forth to heat
all the solder joints until complete solder melt is observed. (See Figure 2).
- Remove the tool. Wait a moment for the solder to solidify.
- Clean, if required and inspect.
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Product Class: R/F/W/C
Skill Level: Intermediate
Conformance Level: High
Revision: D
Revision Date: Jul 7, 2000
Repair Service Charge
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