Aluminum Nitride UVLED Support Submounts for UV-C Disinfection Modules

AlN UV LED and VCSEL Ceramic Support Applications

• UV-C LED Disinfection and Sterilization Modules

  ✅Key Advantages

  1. Lower junction temperature at high UV output – The Aluminum Nitride UVLED VCSEL Support spreads heat efficiently, helping reduce UV-C LED junction temperature by several degrees at the same drive current.
  2. Stable lifetime under continuous or pulsed drive – The high thermal conductivity AlN support helps maintain L70 lifetime targets under continuous or high-duty-cycle operation.
  3. Compact multi-chip array integration – The thin AlN UVLED support submount allows dense UV chip arrays while preserving mechanical strength and electrical insulation.

  ✅ Problem Solved

  A UV module manufacturer building a 275 nm UV-C array for surface disinfection observed that epoxy-based submounts led to junction temperature above 95°C at full drive. After switching to a custom Aluminum Nitride UVLED VCSEL Support with similar outline but higher thermal conductivity, the junction temperature dropped by approximately 10–15°C at the same power level. This allowed the customer to keep optical output within specification over more than 5,000 operating hours and reduced early lumen depreciation returns in the field.

• VCSEL Arrays for 3D Sensing and ToF Cameras

  ✅Key Advantages

  1. Controlled thermal lensing in VCSEL arrays – The AlN VCSEL Support helps limit temperature gradients across the array, supporting consistent beam pattern and dot uniformity.
  2. Tight package height and flatness control – The controlled thickness of the Aluminum Nitride UVLED VCSEL Support supports precise z-height for optics in compact ToF modules.
  3. Stable emission under fast pulsed operation – The AlN ceramic carrier withstands repetitive high current pulses often used in 3D sensing applications.

  ✅ Problem Solved

  A 3D sensing module supplier integrating a VCSEL array on FR-4 based carriers found that the array centre ran hotter than the edges, causing visible non-uniformity in the projected dot pattern. By migrating the array to an AlN VCSEL Support with defined flatness and thermal conductivity, the temperature spread across the active region was reduced, enabling the customer to meet dot-uniformity targets without increasing driver complexity and supporting consistent performance over temperature cycling tests.

• LiDAR and Industrial Laser Emitter Modules

  ✅Key Advantages

  1. Reliable operation in elevated ambient temperature – The Aluminum Nitride UVLED VCSEL Support maintains mechanical and electrical stability near power devices inside LiDAR and industrial laser modules.
  2. Compatibility with high-voltage and high-peak-current drive – The ceramic support offers high dielectric strength and insulation margins for pulsed laser drivers.
  3. Mechanical robustness for vehicle and industrial environments – The dense AlN support structure tolerates vibration and shock typical in vehicle-mounted or factory-floor systems.

  ✅ Problem Solved

  An automotive LiDAR module integrator initially used metal-core submounts for edge-emitting lasers, but the combination of thermal and mechanical stresses led to gradual misalignment in environmental tests. After re-designing the emitter block around an Aluminum Nitride UVLED VCSEL Support, the module passed extended vibration and thermal cycling with stable optical alignment, supporting the customer’s qualification program and series production planning.

AlN UVLED VCSEL Ceramic Support Usage Instructions

• Installation

  1. Verify that the Aluminum Nitride UVLED VCSEL Support thickness and outline match the pick-and-place and bonding fixtures before loading into production.
  2. Handle submounts with vacuum nozzles or ceramic-safe tweezers, gripping non-functional zones to avoid damaging pad areas.
  3. Align the submount orientation marks to the line reference to keep the pad layout consistent with the program data.

• Use in Assembly

  1. Follow the recommended die attach profile for the selected solder or conductive adhesive, taking into account the thermal mass of the AlN support.
  2. Control heating and cooling rates to avoid thermal shock, especially for thin submounts below about 0.3 mm.
  3. Keep contamination away from the pad and bonding areas by limiting handling steps after surface cleaning.

• Storage

  1. Store Aluminum Nitride UVLED VCSEL Support parts in closed, dry containers away from corrosive gases and dust.
  2. Maintain stable ambient conditions to minimize moisture uptake of adhesives and metallization systems used with the submount.
  3. Use the supports on a first-in-first-out basis to keep traceability straightforward and to avoid mixing old and new versions.

• Cleaning

  1. If cleaning is required, use non-aggressive solvents validated for the metals and adhesives used with the AlN support.
  2. Avoid abrasive mechanical cleaning on active pad areas to prevent roughness changes and pad thinning.
  3. Dry parts completely before returning them to trays or starting the next assembly step.

• Common Misuse Points and How to Handle Them

  1. Excessive thermal shock during reflow or die attach
  If cracks or micro-cracks are observed, review heating and cooling ramp rates and reduce temperature gradients across the Aluminum Nitride UVLED VCSEL Support.
  2. Poor wetting or voids under UVLED / VCSEL dies
  Check the flatness of the AlN support, solder paste volume and reflow profile; adjust stencil design or paste type to improve coverage and reduce voids.
  3. Alignment drift during wire bonding or encapsulation
  Ensure fixtures clamp the AlN support in a stable way and verify that adhesive cure conditions do not generate warpage on the submount.

FAQ – Aluminum Nitride UVLED VCSEL Support

1. Q: Why choose Aluminum Nitride instead of alumina for UVLED and VCSEL support?
   A: Aluminum Nitride UVLED VCSEL Support parts offer significantly higher thermal conductivity than typical alumina, which helps keep junction temperature lower in dense UV LED and VCSEL arrays.
2. Q: What size range can you supply for Aluminum Nitride UVLED VCSEL Support submounts?
   A: ADCERAX can supply Aluminum Nitride UVLED VCSEL Support pieces from around 1 × 1 mm up to about 20 × 20 mm or similar outlines, with thickness typically between 0.25 and 1.0 mm, depending on the design.
3. Q: Can the Aluminum Nitride UVLED VCSEL Support include custom pad layouts and metallization patterns?
   A: Yes, the AlN UVLED VCSEL support surface can be prepared for customer-defined pad layouts, tracks and bond fingers that match the UV or VCSEL die pattern and assembly process.
4. Q: What thermal conductivity level is available for the Aluminum Nitride UVLED VCSEL Support material?
   A: The Aluminum Nitride UVLED VCSEL Support is based on high thermal conductivity AlN grades, typically in the range of about 160–180 W/m·K, suitable for high power densities.
5. Q: How tight are the dimensional tolerances for Aluminum Nitride UVLED VCSEL Support submounts?
   A: Depending on size and thickness, Aluminum Nitride UVLED VCSEL Support tolerances can be controlled to approximately ±0.05–0.1 mm on critical dimensions, with defined limits on thickness variation and flatness.
6. Q: Is the Aluminum Nitride UVLED VCSEL Support suitable for wire bonding and SMT processes?
   A: The AlN UVLED VCSEL support can be combined with compatible metallization and surface preparation so that standard die attach, wire bonding and SMT handling can be used in optoelectronic assembly lines.

Aluminum Nitride UVLED VCSEL Support Reviews

• ⭐️⭐️⭐️⭐️⭐️
  ADCERAX as a ceramic supplier has been easy to work with on drawing reviews for custom VCSEL support parts. Their pricing is reasonable for high thermal conductivity AlN, and the dimensional consistency of each batch helps us keep yields stable.
  -- Mark L., Packaging Engineer, UVPhotonics GmbH
• ⭐️⭐️⭐️⭐️⭐️
  For our pulsed LiDAR light source, we needed an Aluminum Nitride UVLED VCSEL Support submount with tight flatness and controlled thickness. The custom AlN carriers we receive fit our emitter block very well and have passed our environmental test plan.
  -- Sophie R., Sourcing Manager, OptiSense Modules SAS
• ⭐️⭐️⭐️⭐️⭐️
  We use several custom sizes of AlN UVLED VCSEL Support for deep-UV packages. ADCERAX can handle small pilot quantities during design and then ramp to higher volumes once the platform is fixed, which is helpful for our product roadmap.
  -- Daniel K., R&D Director, LidarTech Systems Ltd.
• ⭐️⭐️⭐️⭐️⭐️
  We changed several UV-C modules to an Aluminum Nitride UVLED VCSEL Support from ADCERAX and saw a clear reduction in junction temperature at the same drive current. The submount geometry matched our existing fixtures, which kept the line change straightforward.
  --Hiroshi M., Product Engineer, NanoUV Devices Co.