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  4. Liquid crystal display materials Photosensitive insulation/adhesive materials VPA series (Nippon Steel Chemical & Materials Co., Ltd.)

Liquid crystal display materials Photosensitive insulation/adhesive materials VPA series
Nippon Steel Chemical & Materials Co., Ltd.

About This Product

■What is VPA?

・Negative type resist that exhibits strong adhesion even after pattern formation ・Easily removable by laser ablation ・Cured film exhibits high insulation and heat resistance ・Low temperature process is possible to improve production efficiency (180℃ curing)

■Features of VPA

・High adhesive strength: Can be bonded with high strength even after patterning ・Laser removability: Can be removed uniformly with low energy ・High resolution: Capable of forming fine patterns (negative type) ・High transparency: Excellent transparency in the visible range

■Proposal of various processes applying VPA

・μ-LED mass transfer adhesive: laser removability, high adhesive strength, high transparency ・Temporary adhesive for FO-WLP (PLP): Laser removability, high adhesive strength ・Temporary fixing adhesive for ultra-thin substrates: Laser removability, high adhesive strength ・Dissimilar material adhesive for 3D packaging: High resolution, high adhesive strength ・Photosensitive insulating film for WLP redistribution layer: High resolution, low temperature process

  • Product

    Liquid crystal display materials Photosensitive insulation/adhesive materials VPA series

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1 Models of Liquid crystal display materials Photosensitive insulation/adhesive materials VPA series

Image Part Number Price (excluding tax) Dielectric constant Dissipation tangent Coefficient of linear expansion (TMA) (ppm/℃) Breakdown voltage (MV/cm) Strength at break (MPa) Elongation at break Optimal exposure dose (i-line) (mJ/cm2) Young's modulus (GPa) After pre-baking, 25℃ Glass transition point (DMA) (℃) 5% weight loss temperature (TG-DTA) (℃)

VPA series general purpose grade

Available upon quote

3.3

0.03

75

3

77

4%

300~

2.9

None

200

340

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About Company Handling This Product

Nippon Steel Chemical & Materials Co., Ltd.

  • Japan

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Resists
Resists　Nippon Steel Chemical & Materials Co., Ltd.
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