Standard Polyimide Coating Resins

Easy processing ,High purity, Excellent thermal and thermo-oxidative stability
and so on
ZKPI series standard polyimide coating resins are high purity polyimide precursors- polyamic acid solutions which could be easily transformed thermally to polyimide coating films with outstanding thermal, mechanical, electrical insulating, dielectric characteristics and good adhesion to Si, Al, Cu, Glass or Ceramics etc. The products, designed for the sealing, preserving and protection of semiconductor chip surface and junction against moisture penetration and other contamination, are chemically compatible with most device surfaces, providing physical and environmental protection for chip and interconnecting wires. The typical applications include: 1) stress relief-buffer coatings for delicate device die and leads; 2) primary and sencondary passivation layers of chips; 3) a-particle barrier for obstruction of a-particle penetration and stabilization of device characteristics; 4) interlayer dielectrics for multilayer structures and MCM-D multilayer substrates; and 5) Advanced LCD alignment coatings etc.


ZKPI-305I
ZKPI-305II
ZKPI-305IID
ZKPI-305IIG
Appearence
Viscous liquid
Viscous liquid
Viscous liquid
Viscous liquid
Solid content
2
9-10%
12-13%
15-16%
15-16%
Solvents
NMP/DMAc
NMP/DMAc
NMP/DMAc
NMP/DMAc
Absolute viscosity
2
, mPa·s at 25 °C
300-400
300-400
1100-1200
14000-15000
Gravity at 25 °C
1.08-1.09
1.10-1.12
1.10-1.15
1.10-1.20
PH Value
4-5
4-5
4-5
4-5
Maximum Curing Temperature
220-250 °C
220-250 °C
220-275 °C
220-300 °C
Storage: 25 °C
------------
0-4 °C
> 2 weeks
> 6 months
> 2 weeks
> 6 months
> 2 weeks
> 6 months
> 2 weeks
> 6 months
Moisture uptake, %
< 0.01%
< 0.01%
< 0.01%
< 0.01%
Impurity: Na+
---------
K+

--------
Fe
---------
Cl-

--------
Cu
< 2.0 ppm
< 2.0 ppm
< 2.0 ppm
< 3.0 ppm
< 2.0 ppm
< 2.0 ppm
< 2.0 ppm
< 2.0 ppm
< 3.0 ppm
< 2.0 ppm
< 2.0 ppm
< 2.0 ppm
< 2.0 ppm
< 3.0 ppm
< 2.0 ppm
< 1.0 ppm
< 1.0 ppm
< 1.0 ppm
< 1.0 ppm
< 1.0 ppm
1) The table just lists the representative products, please contact with us for more detail information
2) The solid content and absolutely viscosity could be adjusted upon custom's specific requirements


ZKPI-305I
ZKPI-305II
ZKPI-305IID
ZKPI-305IIG
Appearence
Viscous liquid
Viscous liquid
Viscous liquid
Viscous liquid
Solid content
2
9-10%
12-13%
15-16%
15-16%
Solvents
NMP/DMAc
NMP/DMAc
NMP/DMAc
NMP/DMAc
Absolute viscosity
2
, mPa·s at 25 °C
300-400
300-400
1100-1200
14000-15000
Gravity at 25 °C
1.08-1.09
1.10-1.12
1.10-1.15
1.10-1.20
PH Value
4-5
4-5
4-5
4-5
Maximum Curing Temperature
220-250 °C
220-250 °C
220-275 °C
220-300 °C
Storage: 25 °C
------------
0-4 °C
> 2 weeks
> 6 months
> 2 weeks
> 6 months
> 2 weeks
> 6 months
> 2 weeks
> 6 months
Moisture uptake, %
< 0.01%
< 0.01%
< 0.01%
< 0.01%
Impurity: Na+
---------
K+

--------
Fe
---------
Cl-

--------
Cu
< 2.0 ppm
< 2.0 ppm
< 2.0 ppm
< 3.0 ppm
< 2.0 ppm
< 2.0 ppm
< 2.0 ppm
< 2.0 ppm
< 3.0 ppm
< 2.0 ppm
< 2.0 ppm
< 2.0 ppm
< 2.0 ppm
< 3.0 ppm
< 2.0 ppm
< 1.0 ppm
< 1.0 ppm
< 1.0 ppm
< 1.0 ppm
< 1.0 ppm
1) The table just lists the representative products, please contact with us for more detail information
2) The solid content and absolutely viscosity could be adjusted upon custom's specific requirements