k8

 
 
 

ٴDz® EN

 
 
 

ٴDz® EN, high modulus polyimide film

k8™ ٴDz® EN is a premium performance polyimide film for use as a dielectric substrate for flexible printed circuits and high density interconnects.  ٴDz® EN is   the preferred dielectric film for very fine pitch circuitry due to its superior dimensional stability, lay-flat, high modulus, and a coefficient of thermal expansion match to   copper. 

ٴDz® EN is offered in a wide range of thickness from 5 µ ultra-thin to 50 µ thick, which provides more design flexibility to the customer.

The excellent electrical characteristics and chemical etchability inherent to ٴDz® HN and VN films have been maintained in ٴDz® EN polyimide film.  ٴDz® EN   film also has very low moisture absorption and is laser ablatable.

Applications include:

  • Flexible printed circuits
  • Fine pitch circuitry
  •  Chip scale packaging
  • High density interconnects

Typical Properties for k8™ ٴDz® EN Polyimide Film

PROPERTY

UNIT

DIRECTION

20EN

30EN

50EN

100EN

200EN

Test Method

Thickness

µ

-

5.0

7.5

12.5

25

50

JIS K 7130

Tensile Strength

MPa

MD
TD

335

335

350

360

355

380

375

375

345

365

JIS K 7161

Elongation

%

MD
TD

55

55

60

65

65

60

55

55

70

55

JIS K 7161 

Modulus

GPa

MD
TD

5

5

5.3

5.5

5.3

5.7

5.3

5.3

5.3

5.8

JIS K 7161 

 
 
 
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