Applications

Everwide JC823-6 One-Component Epoxy for BGA & CSP Underfill

Brand: Everwide
Product Number: JC823-6
Technology: One-Component Epoxy Adhesive
Color: Black
Cure Type: Heat Curing
Package Size: Contact us for details
Shelf Life: 8 months

Product Description

Everwide JC823-6 is a one-component, reworkable epoxy adhesive developed for BGA and CSP underfill applications in electronic devices. It provides excellent flowability, low viscosity, and strong mechanical properties to buffer expansion and contraction stress at solder ball contacts, improving impact and shear resistance. The adhesive exhibits fast curing at high temperatures, allowing increased production efficiency and shortened working times.

Key Features

  • Solvent-free, non-volatile formulation, releasing no toxic emissions
  • Low viscosity and excellent fluidity, ensuring ease of application
  • Forms a smooth cured surface with no oiliness or poor gloss
  • High elasticity, fatigue resistance, and crack resistance
  • Fast curing at temperatures above 150°C, increasing efficiency
  • Complies with 2011/65/EU RoHS regulations
  • Meets chlorine < 900ppm, bromine < 900ppm, chlorine + bromine < 1500ppm limits

Recommended Applications

  • Underfilling BGA and CSP chips
  • Electronic component encapsulation
  • Applications requiring reworkable epoxy adhesives

Technical Data

Typical Uncured Properties
Property JC823-6
Appearance Liquid
Color Black
Viscosity (25°C, S14 100rpm, cps) 2,500–4,000
Specific Gravity (20/20°C) 1.18
Curing Properties
Property Value
Pot Life (25°C) 2 days
Cure Time (80°C) 30 min
Cure Time (100°C) 15 min
Cure Time (120°C) 10 min
Cure Time (150°C) 5 min
Typical Cured Properties
Property Value
Glass Transition Temperature (Tg) (TMA) 50°C
CTE (<Tg), µm/m/°C 30
CTE (>Tg), µm/m/°C 178
Specific Heat (0°C) 1.01 J/g°C
Specific Heat (50°C) 1.40 J/g°C
Specific Heat (100°C) 1.62 J/g°C
Durometer Hardness (Shore D) 80
Specific Gravity (20/20°C) 1.218
Water Absorption (25°C, 24 hr) 0.95%
Water Absorption (80°C, 24 hr) 2.40%
Water Absorption (97°C, 1.5 hr) 1.89%
Shear Strength (Al vs. Al) 173 kgf/cm²
Flexural Modulus (25°C, DMA) 0.4 GPa
Young’s Modulus 0.4 GPa
Elongation 20%
Elongation Breaking Strength 231 kgf
Degradation Temperature (TGA, 10°C/min) 325°C
Volume Resistivity 4.5 × 10¹⁵ ohm-cm
Surface Resistivity 4.5 × 10¹⁴ ohm
Dielectric Constant (1 kHz) 3.2
Dielectric Strength 18 kV/mm
Temperature Range -40 to 100°C

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