KKPCB Glazed substrates have excellent surface flatness and minimal surface defects, making them ideal for thermal print heads used in fax machines, copiers and various printers.
Features
A wide range of glaze thicknesses, from 30μm to 200μm. Heat storage and heat dissipation can be controlled by adjusting the glaze thickness. Full-surface glaze or partial-surface glaze designs are available to suit application needs. Wet etching can be used to provide a variety of bump shapes and curvatures. Edge glazed substrates are also available.
Material Characteristics
| ITEM | UNIT | TEST CONDITIONS |
NKG-11 | NKG-31 | NKG-33α2 | NKG-35 |
|---|---|---|---|---|---|---|
| COLOR | ー | ー | CLEAR | CLEAR | CLEAR | CLEAR |
| THERMAL EXPANSION COEFFICIEN |
10-6 /℃ |
RT～400℃ | 6.5 | 6.6 | 7.1 | 7.1 |
| GLASS TRANSITION POINT |
℃ | ― | 673 | 740 | 685 | 740 |
| SOFTENING POINT |
℃ | ー | 850 | 910 | 850 | 895 |
| DENSITY | g/cm3 | ー | 3.0 | 3.0 | 3.0 | 3.1 |
| THERMAL CONDUCTIVITY |
W/(m・K) | 25℃ | 0.84 | 0.92 | 0.924 | 0.84 |
| NOTES | ー | ー | STANDARD | HIGH THERMAL RESISTANCE | HIGH THERMAL RESISTANCE | HIGH THERMAL RESISTANCE + IMPROVED CAMBER |
| THIN FILM | THIN/THICK FILM | |||||
ALL PRODUCTS – Pb FREE
Values are typical values
Design Guidelines
| ITEM | UNIT | STANDARD | CUSTOM |
|---|---|---|---|
| THICKNESS | mm | 0.635, 0.8, 1.0 | 0.5, 1.2, 1.6, 2.0 |
| MAX DIMENSIONS | mm | 325×90 | 720×120 |
| GLAZE THICKNESS | μm | 30～200 | |
Product Use Cases
- Thermal printer heads for copiers, various printers
- Thermal printer heads for Point of Sale terminals
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