FAU ASSEMBLY

FAU Head and Tail Bonding Adhesives

FAU head bonding and tail bonding perform different assembly functions. TIANZE provides separate materials for rigid head fixation and controlled tail strain relief.

Start with the complete manufacturing requirement.

  • V-groove, lid and fiber substrates
  • Bond geometry and dispensing method
  • UV access and available thermal post-cure
  • Alignment retention and reliability testing

FAU head adhesive

High-Tg Dual-Cure FAU Head Adhesive

TZ-FAH-101

A low-viscosity UV/thermal dual-cure adhesive for bonding the V-groove base and lid, with low shrinkage and a high glass-transition temperature.

Evaluation focus

  • Controlled bond-line flow
  • UV fixture and thermal post-cure
  • Low shrinkage and high Tg

V-groove base and lid bonding

TZ-FAH-101

Viscosity
0.3–0.5 Pa·s
Cure conditions
UV 300 mW/cm² × 3 min + 100°C × 2 h
Hardness
Shore D 80–90
Shrinkage
3–4%
Transmittance
>95%
Glass-transition temperature
>120°C
Storage temperature
0–10°C

Flexible FAU tail adhesive

Flexible UV-Cure FAU Tail Adhesive

TZ-FAT-206

A flexible UV-curable tail adhesive for securing the fiber transition region and relieving assembly strain.

Evaluation focus

  • Flexible strain relief
  • Rapid UV curing
  • Controlled tail-channel dispensing

FAU tail bonding and strain relief

TZ-FAT-206

Viscosity
10–20 Pa·s
Cure conditions
UV 500 mW/cm² × 1 min
Hardness
Shore A 50–70
Shrinkage
4–6%
Transmittance
>80%
Glass-transition temperature
<−20°C
Storage temperature
10–30°C

Balanced FAU tail adhesive

Medium-Hardness UV-Cure FAU Tail Adhesive

TZ-FAT-208

A medium-hardness UV-curable tail adhesive balancing structural support with low-temperature flexibility.

Evaluation focus

  • Balanced tail support
  • Rapid UV curing
  • Low-temperature flexibility

FAU tail bonding and strain relief

TZ-FAT-208

Viscosity
10–20 Pa·s
Cure conditions
UV 500 mW/cm² × 1 min
Hardness
Shore D 30–50
Shrinkage
4–6%
Transmittance
>80%
Glass-transition temperature
<−20°C
Storage temperature
10–30°C

Plan the application before comparing materials.

Questions for application planning

Why are separate head and tail adhesives used?

Head bonding supports V-groove and lid fixation, while tail bonding secures the fiber exit and manages assembly strain.

What is the difference between TZ-FAT-206 and TZ-FAT-208?

TZ-FAT-206 and TZ-FAT-208 target different tail-support profiles. Their hardness values use Shore A and Shore D respectively, so the numerical ranges are not directly comparable.

What assembly information should be provided?

Provide the substrates, geometry, dispensing method, cure access, alignment requirement and reliability tests.

Email TIANZE materials team