Photo-image, alkaline developed type solder mask.
These grades have been applied for the products such as suspension in HDD, drivers of FPD,
circuit board of Printer, and T-BGA, COF, TAB, with fine patterned circuit board since 1994.
There are several advantages in comparison with PI cover-lay film.
Item | Typical value | Test Condition |
---|---|---|
Viscosity | 180∼240 dPa·s | VT-04 Viscometer (RION), 25deg.C |
Thixotropic index | 1.0∼3.0 | HBT Viscometer (BROOKFIELD), η5/η50, 25deg.C |
Item | Typical value | Test Condition | |
---|---|---|---|
Pencil hardness | 5H | JIS K 5600 | |
Adhesion | (Cu) | Class. 0 | JIS K 5600 (on copper foil) |
(PI) | Class. 0 | JIS K 5600 (on polyimide film) | |
Heat resistance to solder | ≧ 2 times | 5sec. on solder bath at 260±5deg.C | |
Insulation resistance | ≧ 1.0 x 1012Ω | 50/50μm (Line/Space), Comb type test pattern | |
Flexibility | ≧ 1 time | On polyimide film (25μm) 180deg. bending at diameter of 0.2mm |
|
Resistance to chemical Au plating | PASS | Ni 3μm / Au 0.03μm thickness | |
Resistance to acid | PASS | 10% HCI aq., 25deg.C, 30min. Dipping | |
Resistance to alkaline | PASS | 5% NaOH aq., 25deg.C, 30min. Dipping | |
Resistance to organic solvent | PASS | IPA, 25deg.C, 30min. Dipping |
The value in the table is measured by NPT based on each test method, so that these values are not guaranteed.
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Screen Printing | 70∼80deg.C 30min. |
400∼600mJ/cm² | 1% Na2CO3 aq. 30deg.C 0.2MPa |
150deg.C 30∼60min. |
Product code | Color | Application | Features |
---|---|---|---|
ID43 ID43YR |
Green Yellow |
General FPC COF Pickup device (DVD,CD) etc. |
Good flexibility |
ID120 ID120YR-HF |
Green Yellow |
Good flexibility |
|
ID55B | Blue | Excellent electrical properties |
|
ID60 | Green | Excellent electrical properties |
|
ID100 ID100YR ID100T |
Green Yellow Transparency |
COF T-BGA General FPC etc. |
Excellent electrical properties |
If you need technical data sheet of NPR-80 series, please contact us.