Project: Reliability Engineering

Weibull Analyse, Lebensdauerverteilug, Zuverlässigkeitstest, Lebensdauertest, Stresstest, Weibull analysis, lifetime distribution, life distribution, reliability test, ALT, accelerated life test
Weibull analysis of the lifetime of different speaker variants.

Topic: Improvement of the lifetime of a loudspeaker for a global tier 1 automotive supplier



  • Development of lifetime tests to characterise the life distribution and reproduce the failure mode observed in the field
  • Determination of the failure mechanism by analysis of the vibration dynamics of the membrane and voice coil
  • Optimisation of the material parameters of a damping element


  • Increase of the lifetime by a factor of 4
  • Thus solving a long lasting quality issue and ensuring continued product success on the market

Project: Cost Engineering

Topic: Build up cost engineering practice in electronics department of global automotive tier 1 supplier



  • Cost model development for high-cost products and BoM components 
  • Benchmark analyses covering materials, components and manufacturing
  • Analysis of cost breakdowns from supplier quotes and identification of gaps to best cost practices
  • Analysis of customer’s product designs and manufacturing process flows and identifaction of saving potentials


  • Saving potential identified: > 15 Mio USD / year, based on cost models created and confirmed by benchmark results

Project: Thermography

Thermografie, Temperaturabklingkurve, temperature decay curve, thermography
Temperature decay curve of a component following high temperature storage

Topic: Characterisation of the temperature decay of electronic components following high and low temperature storage


Background and Method

  • Certain product parameters are to be determined at high and low temperatures while their measurement directly in the climate chamber is not possible
  • In practice, the parameters are measured directly following the temperature storage - at unknown component temperature
  • By knowledge of the temperature decay curve of the components the temperature in the instant of parameter measurement can be deduced
  • Temperature decay curves have been measured by a thermographic camera


  • The components' temperature decay is a rapid process and follows an exponential model
  • For example, 15 seconds after removal from the climate chamber, the component temperature differs by 30°C from the storage temperature