MEMS Scanners and Scan Engines

From customer-specific development to pilot production

Scanning mirrors, either resonantly or quasi-statically operated, are the technology of choice when it comes to selectively deflecting light with very compact systems. At Fraunhofer IPMS you will find technological competence for component and system development and application know-how from more than 10 years of development work in equal measure.

In recent years, Fraunhofer IPMS has developed more than 50 different resonant MEMS scanners, which are used as one- or two-dimensional deflecting elements or also for optical path length modulation.

 

Our offer at a glance

  • Tilting and translational mirrors
  • 1D and 2D deflection (resonant, quasi-static)
  • Large optical scanning range: 136°
  • Frequencies: 0.1 Hz - 100kHz
  • Mirror diameter: 0.5 - 5 mm (9.0 mm)
  • Planarity: better than λ/10
  • Highly reflective coatings possible
  • Integrated piezo-resistive position sensors

You can expect excellent long-term behavior, high temperature, vibration and shock resistance from our mirrors. 

We're happy to develop customer-specific scanning solutions for your application and provide qualified MEMS scanner dies and scan engines in larger numbers via pilot fabrication.

Our extensive packaging and assembly know-how and qualified pilot production make us a strong partner for your project.

How we manage your project

We offer design, test, integration and packaging along the entire MEMS scanner value chain.

MEMS product development process at Fraunhofer IPMS
MEMS scanner value chain at Franhofer IPMS

Step 1: Application & Specification

  • Discussion of Requirements
  • Preliminary or final Specification

Step 2: Design & Layout

  • Extensive FEA & Matlab library based simulations
  • Design variations towards “design point”
  • Lithography Mask Layout

Step 3: Manufacturing

  • Internal PDK: 8AME75
  • 8” BSOI-Wafer
  • Inline Tests & Wafer Level Test
  • WLT: Full device functionality

Step 4: Preparation for Assembly

  • Chip Singulation
  • Chip Cleaning
  • Pick & Place
  • CLT

Step 5: MEMS Module Assembly

  • Tray based
  • Automatic Module Test
  • Outgoing Inspection

We support development from TRL 2 to TRL 7 and also offer pilot manufcaturing in our 200 mm cleanroom. Speak to us about your application and we'll be happy to tailor our project to your needs.

Applications for MEMS scanning mirrors and scan engines

Applications range from bar code reading systems and 3D metrology to laser projection, spectroscopy and focus position modulation. 

A practical example is a scanner mirror with diffraction grating for spectroscopic applications. This has been offered commercially since 2007 by HiperScan GmbH, a spin-off of Fraunhofer IPMS, in a novel near-infrared microspectrometer. 

In addition, Fraunhofer IPMS is working on application-specific scanner mirrors, e.g. for Fourier transform spectrometers, confocal microscopy, highly miniaturized displays, ultra-compact laser projection systems, for image acquisition in endoscopes and for distance measurement (triangulation).

In addition to resonant scanners, quasi-static deflectable microscanners are also being developed for applications such as laser beam positioning or vector scanning. 

© Fraunhofer IPMS
MEMS-Mirror applications at Fraunhofer IPMS

Find out more about these specific applications:

 

Applications

Automotive LiDAR

  • Machine perception
  • Sensory organ for cars
 

Application

Medical diagnostics via OCT

 

Application

Quality control using optical coherence tomography (OCT)

Learn more about MEMS scanner mirror manufacturing in our 200 mm cleanroom in the following videos

We're happy to develop customer-specific scanning solutions for your application and provide qualified MEMS scanner dies and scan engines in larger numbers via pilot fabrication.

Our 200 mm clean room is working 24/5 in 3 shift operation. Over 90 engineers, operators and technicians enable us to run ~1,000 wafer starts per month. 

Our class 10 (ISO 4), 1,500 m² clean room is ISO 9001:2015 certified.

 

MEMS Manufacturing - Backend and Inline Testing

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MEMS Manufacturing - Preparation for Assembly

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MEMS Manufacturing - Module Assembly and Inspection Test

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Inform yourself at a glance

 

Cleanrooms

200 mm MEMS Cleanroom

 

Webinar

Automotive LiDAR technologies

 

Language: English

Length: 55 min

 

Webinar

MEMS Technologies for Vehicle Environment Detection

 

Language: German

Length: 35 min