Applications

Accessories
Adhesives
Cleaners
Equipment
Lubricants
Others
Primer, Activator
Solder Materials
Solvent
Tapes
Technology
Thermal Management

LOCTITE® ECCOBOND UF 3800 – Epoxy underfill for CSP/BGA applications, providing mechanical stress protection for solder joints.

  • Item Name: LOCTITE ECCOBOND UF 3800
  • Manufacturer: Henkel
  • Product Category: Underfill Adhesive
  • Technologies: Epoxy (one-component, reworkable)
  • Applications: Underfill for chip scale packages and BGA in CSP applications
  • Color: Black liquid
  • Cure Type: Heat cure
  • Package Size: Contact Techniq VN for details.
  • Shelf Life: Approximately 9 months (at -20°C)

1. Product Overview

LOCTITE ECCOBOND UF 3800 is a reworkable, one-component epoxy underfill designed for CSP and BGA applications. It offers:

  • High Tg (69°C)
  • Fast cure at moderate temperatures (≥8 minutes @ 130°C)
  • Room temperature flow capability
  • Minimal stress on components
  • Stable electrical performance in temperature humidity bias
  • Compatibility with Pb-free and halogen-free solders

2. Applications

  • Underfill for Chip Scale Packages (CSP) and Ball Grid Arrays (BGA)
  • Provides mechanical stress protection for solder joints

3. Typical Properties

Property Value
Uncured Properties
Viscosity @ 25°C (mPa·s) 375
Specific Gravity 1.13
Pot Life @ 25°C (days) 3
Shelf Life @ -20°C (days) 274
Curing Performance
Recommended Cure Schedule ≥8 minutes @ 130°C
Cured Properties
Coefficient of Thermal Expansion (ppm/°C) Below Tg: 52 Above Tg: 188
Glass Transition Temperature (Tg) 69°C
Storage Modulus @ 25°C (GPa) 3.08
Electrical Properties
Dielectric Constant @ 23°C 1GHz: 2.97 2GHz: 2.8
Dissipation Factor @ 23°C 1GHz: 0.0174 2GHz: 0.0022

BERGQUIST microTIM mTIM 1028 Thermal Interface Coating High performance thermal management solution for nickel finished heat sinks, optical transceivers, and data center liquid cooling systems

BERGQUIST microTIM mTIM 1028 is purpose built for riding cage assemblies in servers, switches, and routers, interfacing with electroless nickel plated copper or aluminum heat sinks. It ensures stable operation in high power transceiver modules while also extending applicability to liquid cooling components, heat pipes, and fin based dissipative structures.

RELATED PRODUCT

Contact Technical Support

Leave your information or connect via Hotline, and our expert team will reach out immediately to provide professional consultation and customized solutions.

(+84) 889 901 929

Email: info@techniq.vn

Our Technical Support Team is on hand from 8:30 AM to 5:30 PM (GMT+7).

For requests outside these hours, please submit your request form and we will respond at the earliest opportunity.