Lighting & LED

EAG’s analytical support services for lighting result in production cost savings, improved lot-to-lot product performance and accelerated product development. We provide world-leading support of research, development and fast-response production monitoring for both conventional and LED lighting manufacturing.  

EAG’s laboratory in Eindhoven, The Netherlands has a long history in the field of lighting testing and analysis, supporting both conventional and LED lighting product development. Our Eindhoven experts provide consulting services for lighting products and raw materials, due to our vast knowledge of application conditions and regulations for lighting materials.  

For both conventional and LED applications we offer: 

Chemical compatibility 

  • Testing of materials/components for their suitability to be used in a “chemical environment” (e.g. in industrial areas, by the sea, agricultural applications, hospitals, etc.) 
  • Testing of materials/components resistance against cleaning agents, disinfection agents, aggressive gases or other chemicals. 

Failure analysis and problem solving 

  • Forensic analysis (in the lab) and on-site investigation to identify and understand the root cause(s) of failure 
  • Root cause generation (conformation) in our reliability and materials laboratories 
  • Support to address problems via material and/or process consultancy 
  • Proving the validity of proposed solutions or hypotheses in our test laboratories 

Materials reliability 

  • Testing of material, component or product reliability (IP testing, salt mist exposure, HALT, drop & vibration testing) 
  • Environmental testing (thermo shock & cycle, damp-heat test, UV & solar test) 

LED Analysis and Consulting 

 We support LED analysis at all levels: 

  • Level 0: LED wafer/die/chip 
  • Level 1: Packaged LED die 
  • Level 2: LEDs on PCB mounts 
  • Level 3: LED modules or LED bulbs 
  • Level 4: Luminaires 

We offer the following range of services to answer questions and address issues related to all LED product component and materials at different manufacturing stages. 

Compositional analysis 

  • Identification and compositional analysis of polymers (e.g. silicones), metals, gases, LED phosphors, quantum dots, ceramics, contaminants, electrical components. 

Contamination identification and control 

  • Analysis of contamination in gases (e.g. gas composition in filled LED bulbs; air quality/cleanliness in industrial manufacturing areas) 
  • Analysis of material outgassing (e.g. potentially harmful substances from cables, drivers, PCBs or other components) 
  • Measuring cleanliness of products beyond just visual inspection 
  • Witness testing to verify your product will meet industry, company or customer specifications. We are experts in testing if components and/or environmental conditions have negative interactions that may negatively influence product performance 

Measurement of light technical parameters 

  • Measurement of light technical parameters of a single LED and complete modules before, during and after testing (e.g. color temperature, color point, luminous intensity, radiation pattern, color over angle, etc.). 

Other applications 

Our lighting and LED expertise also enables us to successfully address issues in related industries which have components containing similar materials or where the products may also be exposed to harsh environments, e.g. automotive components, including lighting; photovoltaic/solar cells, thermal/solar concentrators/mirrors etc. 

Conventional Lighting Analysis and Consulting 

Our conventional lighting experts have years of experience troubleshooting and testing conventional lighting products, including: 

  • (Ultra) high pressure discharge lamps 
  • Fluorescent lamps 
  • Disinfection UV lamps 
  • Halogen lamps 

These types of products often require compositional analyses, such as identifying and characterizing such components of conventional lighting materials: 

  • Metals 
  • Gases 
  • Fluorescent powders 
  • Emitter 
  • Mercury consumption 
  • Tungsten electrodes/materials 
  • Pre-coats 
  • Feed-through materials 
  • Ceramics
  • Glass 
  • Contaminants 
  • Electrical components  

Examples of quality control and contamination studies for conventional lighting products: 

  • Analysis of gas composition and contamination in gas filled lamp (even in burning mode); inner and outer bulbs, air quality/cleanliness in industrial manufacturing areas and oven processes 
  • Analysis of material outgassing, bake-out tests of volatile, potential harmful, substances from cables, drivers, PCBs or other components 
  • Measuring cleanliness of products beyond just visual inspection 
  • Support quality processes in production 

Consultancy, training and coaching 

  • Material consultancy 
  • Training on site; for example, operation procedure handheld XRF instrument  
  • Consultancy concerning international test standards on hazardous/certain substances 
  • RoHS – REACH support 

Surface Analysis for Lighting and LEDs 

EAG offers surface and thin film characterization, to understand composition, surface contamination andsurface topography, as well as measuring thin film thickness, defects and optical properties.                       

Our analytical support for LED R&D includes packaging development and contamination analysis, in addition to burn-in and reliability testing to LM-80 standards. 

EAG scientists are experts in the characterization of epitaxial films for identity, structure, grain size and orientation, composition, dopants and contaminants. 

We offer a broad range of analytical services developed exclusively for LED characterization: 

  • Layer thickness and density determination 
  • Full wafer layer thickness mapping 
  • Stress in epitaxial layers 
  • Crystalline orientation 
  • Depth profiling dopants and impurities 
  • Measuring layer thickness and composition 
  • Controlling common impurities (e.g. H, C and O) in MOCVD epitaxy with very low detection limits 
  • Characterization of crystal quality of AlInGaP and InGaN MQWs 
  • Cross-sectional analysis of the structure of LEDs 
  • Examining the cross-sectional structure of LEDs 
  • Full reverse engineering of finished LEDs 
  • Problem solving in adhesion of metal stack onto semiconductor material 

Contact the LED and lighting analytical experts at EAG Laboratories for a quote today. 

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