As a kind of corona-resistant polyimide film, corona-resistant polyimide film has a good electrical performance, high heat resistance, chemical resistance and other performance characteristics .Besides its corona-resistant properties and good thermal conductivity properties makes its heat resistance rank in C-level grade. It is applicable to the sintering of the wire after package.
1. Technical requirements
1 Model
CR-type: basement layer
FCR-type: single-sided coating resin F46 in the basement layer
FCRF-type: double-sided coating resin F46 in the basement layer
2 Appearance
Translucent golden brown appearance, smooth surface, non-crease, tear, particulate, air bubble, pinhole and other defects and impurities, neat edge without damage
3 thickness and deviations allowed
Table 1
|
Mode1 |
CR-type |
FCR-type (F46) |
FCRF-type (F46) |
|
Thickness(um) |
25 |
38 |
50 |
|
Allowable deviation(um) |
±2 |
±3 |
±3 |
Note: The coating thickness may be regulated in the range of 5-12.5um according to customer requirements.
1.3.2 width and the permissible error
Table 2
|
Mode1 |
CR-type |
FCR-type (F46) |
FCRF-type (F46) |
|
Width(um) |
25 |
38 |
50 |
|
Allowable deviation(um) |
±2 |
±3 |
±3 |
Note: The width can be cut in accordance with the requirements of customers in the range of width as above-mentioned.
The length of each volume is 500-1000M, in each batch of orders, the joints of a single products should be not more than 25% of the total volume. The joints of a single volume should be more than 3, the length should be longer than 300M, the number of joints in single volume is not more than 3, the shortest length is more than 300M.
FCR-type spliced with FCRF type by heat.
Film logo:
Label affixed to every single piece of volume: batch number, specifications, NW; every single volume labels; specifications.
The box should be marked clearly and tight.
The format of the box is determined by the purchase confirmation.
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