- FZ series are dry film type photosensitive solder resist with high reliability
developed for PKG, which have excellent HAST resistance, TCT resistance
and PCT resistance, etc.
Features
- This solder resist has high reliability such as excellent HAST resistance , TCT resistance, and PCT resistance, etc.
- This solder resist has excellent surface flatness after resist curing.
Photo characteristics
| Item |
Condition |
Unit |
FZ-2520G |
FZ-2525G |
FZ-2530G |
FZ-2535G |
| Thickness |
— |
μm |
20 |
25 |
30 |
35 |
| Photosensitivity*1 |
ST=18/41 |
mJ/cm2 |
250 |
250 |
250 |
250 |
| Resolution*2*3 |
Opening pattern |
μmØ |
40 |
50 |
60 |
70 |
| Tg |
TMA |
°C |
97 |
| CTE (α1/α2) |
ppm |
57 / 148 |
| Elastic modulus |
Tensile method |
Gpa |
2.3 |
| Tensile strength |
Mpa |
76 |
| Elongation |
% |
6.0 |
| Heat resistance to solder |
260°C/10sec.
/3cycles |
— |
Pass |
Resistance to
electro less Ni/Au |
Ni:5μm Au:0.1μm |
— |
Pass |
| Resistance to HAST |
130°C/85%
/6V/300h |
Ω |
>1.0E+12 |
| Resistance to TCT |
-55°C/125°C
/1000cycles |
— |
Pass |
| Resistance to PCT |
121°C
/2.1atm/100h |
— |
Pass |
*1:41-step tablet(Film mask)
*2:Photo mask:Test pattern for Hitachi RAYTEC(Film mask)
*3:Exposed by collimated light type,ST=18/41
Via shape
 |
 |
| Via shape of FZ-2520G, Ø40μm |
Via shape of FZ-2530G, Ø40μm |
Surface flatness(FZ-2530G)
 |
| t0.1mm Substrate, Ø70μm |
