Copprint - Model LF-390 -Paste for PI Substrate

Technology: Screen printing
Appearance: Copper paste
Filler Type: Copper
Substrate: PI

Key Product Benefits

• High conductivity
• Very-low fabrication cost
• Nano copper particle size for pattern precision
• Excellent printability and adhesion on PI substrates
• Rapid self-sintering, really simple fabrication in air environment
• Green circuits, environmentally friendly

Drying: Ceramic lamps/hot air/thermal plate/oven
Sintering: Hot press
Application: Conductive Nano Copper Ink for Additive Printing
Common Applications: Flexible PCBs on PI

TYPICAL PROPERTIES OF COPPRINT NANO COPPER PASTE (UNCURED)

Average particle Size, µm D50 < 1.0, D90 < 7.0
Solids Content, after 10 minutes @ 150ºC, % 89±1
Density, g/ml 4.1
Viscosity @ 250C , DVEHA Brookfield spindle 14,
100rpm, mPa·s (cps) 15,000-20,000

Theoretical coverage @ 14 µm dry film thickness 10.5 m²/kg
Shelf Life @ -10°C, days 180
Flash Point – See SDS

Drying and Sintering:
Drying cycle – 120sec @100°C (Hot air, Reflow oven)
Sintering cycle – 10 sec @300°C (R2R laminator)
Conditions (time and temperature) may vary based on customers’ experience and their application requirements, as well as customer drying equipment, oven loading and actual oven temperatures.

CURED NANO COPPER Physical Properties

Adhesion: tape test 3M Scotch 234 (Passed)
Cross cut test ISO 2409-2007 4b
Electrical Properties: Sheet Resistance, ohm/?/25 μm <0.0025

DIRECTIONS FOR NANO COPPER INK USE

Nano Copper Paste Activation:
Copprint LF-390 is supplied as a single-component formulation ready for use.

SCREEN PROPERTIES

Emulsion, Solvent resistant emulsion: 10 to 40 μm
Squeegee Shore Hardness: 70 to 90 Shore
Screen Type: Polyester screen, mesh 100 to 300

EQUIPMENT MAINTENANCE & CLEAN-UP

Equipment can be cleaned with Dowanol DB followed by aqueous solution which includes 10-20% w/w 2-amino-2-methyl-1-propanol.

STORAGE

Store product in the tightly closed container in a dry location below -100C. Open the container carefully. Storage information may be indicated on the product container labeling.

Optimal Storage: below -10°C. Storage above -10°C can adversely affect product properties.

Paste removed from containers may be contaminated during use. Do not return Paste to the original container. Copprint is not responsible for paste which has been contaminated or stored under faulty conditions