History

Experience and innovation

1946. Right after the end of World War II the physicist Kurt Klingsporn founded the company and moved to Neckarbischofsheim near Heidelberg. In 1996 KVG merged with DOVER Inc. as their European production line for crystals and crystal products. In 1997 KVG acquired Quarzkeramik in Stockdorf, which is a well-known company for OCXOs and High Precision crystals around the world.

Since 2002 KVG is again an owner managed company. The owners and presidents, Manfred Klimm and Gerd Krauskopf, have had leading positions in this market for many years.

The history of KVG can be compared with a chronology of progress:

  • 1963 KVG uses synthetic crystal material
  • 1964 Design and production of crystal filters
  • 1968 Production of temperature compensated oscillators TCXOs
  • 1970 Direct plating technology in crystal production
  • 1971 Production of monolithic crystal filters
  • 1972 Convex shaped crystal blanks in production
  • 1974 Introduction of X-ray based angle selection
  • 1979 Computer based temperature measurements of Crystals
  • 1981 Computer based compensation networks for TCXOs
  • 1983 Quartz sensors and OCXOs
  • 1987 Computer aided quality control
  • 1988 Introduction of surface mount technology for oscillators
  • 1993 VCXOs mit 622.08MHz
  • 1994 Production of HFF fundamental mode crystals up to 200 MHz
  • 1994 Production of SC-cut crystals for OCXOs
  • 1995 Introduction of laser trimming in oscillator production
  • 1997 Design and production of SMD OCXOs series OCXO-6000
  • 1998 Production of high stability ASIC-TCXOs
  • 1999 High frequency VCXOs based on HFF Inverted Mesa crystals
  • 2000 New production line for High precision crystals
  • 2002 KVG becomes an independent company again
  • 2003 Introduction of digitally calibrated crystal oscillators
  • 2005 Design of low phase noise OCXOs
  • 2007 Design of space crystals
  • 2008 Design of space crystal oscillators
  • 2009 Reconstruction of the production facilities
  • 2010 Reorganisation - crystals and oscillator fabs are again on KVG area
  • 2010 Design of low G-Sensitivity OCXOs
  • 2011 ESA certificate of qualification for space crystals
  • 2013 ESA certified vendor for crystal oscillators XO’s and VCXO’s
  • 2014 Introduction of mechanical damped OCXO modules
  • 2015 Desing of Ultra low Phase Noise RF-OCXO and very low G-Sensitivity OCXO
  • 2016 KVG received EN 9100 certificate for Aviation, Space and Defense organizations
  • 2017 Introduction of new LPN/LGS PLL Modules

New designs in the field of oven controlled oscillators - like enhanced low g sensitivity (LGS) technology - and new RF TCXOs and OCXOs are again setting the standards in the field of crystals and crystal oscillators.