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AMTECH MANUFACTURING LLC

NC-560-LF-TF no-clean lead-free tacky flux for ENIG boards (ROL0) - 5g syringe bulk

NC-560-LF-TF no-clean lead-free tacky flux for ENIG boards (ROL0) - 5g syringe bulk

Regular price $14.00 CAD
Regular price $17.00 CAD Sale price $14.00 CAD
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Designed for lead-free alloys and ENIG boards

Low activity (L0) no-clean lead-free flux. Formulated for syringe, stencil printing, and rework on all PCB surface finishes, can be used for BGA sphere attachment and reballing, also designed to work on all flip chip bumping and chip scale packaging sites.

Some of the popular alloys supported by this product
Compatible Alloys Liquidus Solidus
Sn42/Bi58 (Eutectic) 138°C 138°C
Sn42/Bi57.6/Ag0.4 140°C 139°C
Sn96.5/Ag3.0/Cu0.5 219°C 217°C
Sn99/Ag0.3/Cu0.7 221°C 217°C
Sn96.5/Ag3.5 (Eutectic) 221°C 221°C
Sn99.3/Cu0.7 (Eutectic) 227°C 227°C
Sn95/Sb5 240°C 235°C
Sn95/Ag5 245°C 221°C

Recommended Profile

To achieve better results with voiding or to reduce tombstoning, as a starting point for process optimization using NC-560-LF-TF consider longer soaking zone, (170-220°C) for 60-90 seconds, with a rapid pre-heat stage. If there is evidence of solder de-wetting, consider lowering the peak reflow temperature, or reduce the time above liquidus to <60 seconds.

Cleaning

NC-560-LF-TF can be left on the board for many SMT assemblies. For applications requiring cleaning, NC-560-LF-TF can be cleaned using commercially available flux residue removers.

Storage and Handling

Tacky flux should be stored at room temperature (20-25°C). Syringes and cartridges should be stored vertically with the dispensing tip down. Properly stored tacky flux has a 12 month shelf life.

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