+ PRODUCT INTRODUCTION +

产品介绍

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无卤覆盖膜(黄色、黑色)

Product introduction- Halogen free coverlay (yellow / black)
无卤覆盖膜(黄色、黑色)

产品介绍 - 无卤覆盖膜(黄色、黑色)

Product introduction- Halogen free coverlay (yellow / black)
黄色、黑色无卤覆盖膜(CVL)是由聚酰亚胺薄膜涂覆高性能热固性环氧树脂接着剂,以离型纸做隔离层,经高温固化后形成的绝缘耐热胶膜。材料广泛应用于FPC制造,以作线路保护及绝缘层。

Halogen free coverlay (CVL) is a kind of high temperature thermosetting epoxy resin coated with polyimide film. Then, the insulating coating is made of release paper as insulation layer and cured by high temperature. The series of materials are widely used in FPC manufacturing for line protection and insulation.

 

·产品结构及系列Product Structure and Series

产品结构 Product structure

产品系列 Product serides

说明Instruction

Pi膜 PI Film
环氧树脂 Adhesive
离型纸 Release Paper

黄色覆盖膜Yellow CVL


黑色覆盖膜Black CVL


所有覆盖膜系列产品均可按照客户要求进行胶层涂布,胶层厚度范围13um-75um。
  All coverlay products can be coated in accordance with customer requirements,   rubber thickness range 13um-75um.


 

·产品规格 Product Specifications

Item(项目)

Test method(测试方法)

Specification(规格)

Width(幅宽)

  Specification

250±1mm

Polyimide   thickness(PI厚度)

  Specification

12.5um、25um

Adhesive   thickness(胶层厚度)

  Specification

15-25um

Shelf   life(保质期)

<10℃, <65%RH

3months

23℃±3℃, <65%RH

10days

 

·产品性能 Product Properties

Item(项目)

Test method

(测试方法)

Specification

(规格)

Peel   strength(剥离强度)

IPC   TM650 2.4.9

≧0.5kgf/cm

Adhesive   flow(溢胶量)

IPC   TM650 2.3.17.1

≦0.2mm

Solder   Float Resistance(耐焊性)

(after   165℃±5℃ 1hr)                ( 165℃±5℃烘烤1小时后)

IPC   TM650 2.4.13

288℃ 10sec

Dimensional   stability

(尺寸稳定性)

IPC   TM650 2.2.4

TD≦±0.2%

MD≦±0.2%

Chemical   resistance

(耐化学品性)

MEK   5min(丁酮浸泡5分钟测试)

IPC   TM650 2.3.2

No   evident of defects

HCl   5% 5min(5%盐酸溶液浸泡5分钟测试)

NaOH   5% 5min(5%氢氧化钠溶液浸泡5分钟测试)

Surface   Resistivity(Ω)

(表面电阻率)

IPC   TM650 2.5.17

≧1.0*1011Ω

Volume   Resistivity(Ω.cm)

(体积电阻率)

IPC   TM650 2.5.17

≧1.0*1012Ω.cm

 

·产品应用  Product Application

该系列产品广泛应用于FPC制造,以作线路保护及绝缘层。

The series of materials are widely used in FPC manufacturing for line protection and insulation.