EN 
DE DOT History
The company Dünnschicht- und Oberflächentechnologie GmbH (thin film and surface technologies GmbH) is founded on Feb 07 1992 by two physicists and two engineers. All its four directors have a wealth of academic or industrial experience in coatings and materials technology. In January 2001, the company name is changed from Dünnschicht- und Oberflächentechnologie GmbH to DOT GmbH - but first one after another:
The construction of our new CMR cleanroom has been completed. The sixth VPS system also arrived at DOT in March. In addition, a tram in DOT design has been travelling around Rostock since the beginning of the year.
Construction of houses 5 and 6 is complete. Final acceptance by the building regulations office took place in May 2023. Our US daughter DOT America also celebrated its tenth anniversary on 30 May 2023.
On 07 February 2023, DOT celebrates the 30th anniversary of the company.
The construction of two further office and production buildings - buildings 5 and 6 - has begun. In addition, the third fully automatic washing system was put into operation at DOT.
Thomas Eifeler has been contributing his knowledge and experience to DOT GmbH as Commercial Managing Director since July 2020.
The expansion of production took place from summer 2018 with the construction of building 4, and the PVD department was able to start production in november 2019.
25th anniversary of DOT
The number of employees in Rostock has grown to 320 and DOT America Inc now employs a staff of 15 people.
DOT Analytics laboratory is accredited by DAkkS. An additional field is established, offering customers and third parties a selected range of tests (e.g. tests for Bioburden and Endotoxines).
We are elated when DOT America, Inc. is officially opened.
Plant extension of building 2 to 2,000 m² is completed. The stent and catheter coating department moves into its own facility at the Rostock Südstadt location. All DOT divisions are now centered at one location.
DOT America, Inc. is founded. Our first overseas subsidiary is located in Columbia City, Indiana.
DLC (Diamond-like Carbon) coatings for rotating dental instruments are introduced.
CELLTex® and CELLBIOTex®
are placed on the market as additional dental coatings.
In September, the new production building (building 3) with 1,000 m² of floor space is completed. The entire DOT facility, except for the department for coating stents and catheters, is now in Rostock-Südstadt.
Eifeler Holding GmbH & Co. KG acquires the majority of DOT GmbH.
The dental coatings BONITex® and DUOTex® are placed on the market.
A staff of 140 persons is now employed at DOT. Floor space is increased by 2000 m² when building 2 is constructed.
Laser marking and clean room packaging capabilities are now offered.
DOT’s own office and production building with 3,000 m² of floor space (building 1) is officially opened.
The DOTIZE® anodizing procedure is introduced. It was developed by DOT to enhance implant strength and to suppress bone growth in applications for trauma implants.
Plasma spray operations with DOT’s own TPS coating plant are commenced.
The electrochemical calcium phosphate coating BONIT® is patented.
A first investment in a PVD coating machine is made and it is installed in a facility with 140 m² floor space.