STVision has its roots in image processing since 1979. We have developed our own software standard, with special focus on industrial vision and optical measurement since 1989.
All our algorithms and tools had to prove its reliability and precision in the rough production environment and we could improve through generations of computer and software standards: Windows 2000 based systems.
Our systems had to pass severe production acceptance tests, most of them are still in production today and are used to assure the quality of parts in electronic watches, microprocessors, mobile phones, smart cards, ABS break systems for cars, precision writing instruments and many more.
Here is a brief history overview:
1990 Dispense measurement, die and wire bond inspection
Diode inspection
Lead inspection for power devices
Inspex Motion (elongation measurement)
1992 Leadframe inspection
1993 Package inspection
1994 Inspex LF including automatic handling
system and 3 high resolution
1995 LF3 new generation of leadframe inspection systems
LF/TAPE application for Kepton tape inspection
Package inspection for SOD and SOTxx
1996 DPAK lead coplanarity measurement
1997 SOD 75 & 79 lead coplanarity and wiring inspection
1998 Hit over 30 000 components/hour lead molding
1999 Ball grid array inspection. Patented 3D height
measurement
2000 MLP Inspection & Vision 3 software (new
generation) All application is based on the new
2000 software.
2001 Inspection of inkjet nozzles for printer.
2002 Laser marking and deflashing systems.
Camera calibrated laser systems.
2003 DCS1F Dispense Check on flip bonders.
ENC inspection of encoder discs for automotive
power steering.
2004 CCD inspection of imaging devices.
2005 2nd generation of high-speed inkjet nozzle inspection.
Dispenser station for controlled dispensing of micro
volume.
2006 Wire Bond Inspection system for thick Alu wedge
bonds.
2007 New imaging sensor inspection for BlueRay DVD
Devices.
2008 Fluorescence analysis system for detection of mold
residues solar concentrator tracker with sun position
sensor
2009 New generation of gel contamination on mold surface
Solar Cell edge inspection (SCE) system
2010 Inspection modules to be integrated into older
generation systemation
handlers for the semiconductor industry
2011 Systems for metal surface and contour metal sheets
2012 Inspection area system for metal sheets (540x540mm)
2013 High speed inspection system for optical density and
position measurement of thin film material.
participation in a BMFT project for next generation
high definition rotary encoder inspection
2014 Laser Marking inspection system
Laser Marking inspection system on injection nozzles for Diesel engines.
OD (optical density) measurement system for special foils with CMOS cameras.
2015 Inspection system for jet holes on Diesel
Inspection system for jet holes on Diesel injection nozzles. Measurement of tip shape, and test for false shape types.
Optical test of steel needles with DLC (diamond like coating) surfaces for micro cracks.
2nd generation system for optical inspection on electroformed encoder discs with fully automatic handling.
2016 New Research Project for STVision
New Research Project for STVision
The R&D Project “PhotoEnco” is the development of a new generation of encoder discs for increasing demands in the market. Targets are simplified assembly without calibration, a higher resolution with improved accuracy, and a reduction of cost.
The PhotoEnco team consists of five partners under the leadership of Sick Stegmann. Responsibility of STVision is the development of visual inspection tools for quality control of the new generation encoders. This will guarantee good and constant quality production of the new encoders from the first day on. STVision was selected by the team, due to 12 years experience in the 100% inspection of glass and Nickel encoder discs.
The project is scheduled for three years, beginning in June 2016.
The project is financed by the BMBF
(Bundesministerium für Bildung und Forschung)
DLC Crack Inspection
- May 2016
STV has developed a vision system for the detection of micro cracks on DLC (diamond like coated) needles for Diesel injection nozzles. The needles are the valves of Common Rail Diesel Engines, used everywhere across the world.
Micro cracks occur randomly in the manufacturing process. They are almost invisible and extremely hard to detect. STV has developed a method for safe automatic inspection. The system executes crack inspection within 2 sec cycle time by means of special optical illumination, specific filtering in software, and defect cluster analysis.
The micro cracks can cause certain failures of the Diesel engine injection control, due to incomplete blocking and leaking of the valves. Bosch now uses this system in the 100% quality test of their diesel nozzles.
inspection system of steel needles with DLC (diamond like coating) surfaces for general surface defects.
New generation optical inspection system for power shunt resistors with new generation cameras with higher resolution and speed.