Sökning: "Lars Ekberg"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden Lars Ekberg.

1. 1. Development of ultra-precision tools for metrology and lithography of large area photomasks and high definition displays

   Författare :Lars Peter Ekberg; Lars Mattsson; Lars Stiblert; Richard Leach; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ultra precision 2D metrology; LCD-display; OLED-display; nm-resolution; random phase measurement; large area; photomask; acousto-optic deflection; self-calibration; Z-correction; absolute accuracy; uncertainty.; SRA - Production; SRA - Produktion;

   Sammanfattning : Large area flat displays are nowadays considered being a commodity. After the era of bulky CRT TV technology, LCD and OLED have taken over as the most prevalent technologies for high quality image display devices. LÄS MER

3. 2. Airborne Contaminants in Office Buildings: Some Aspects of Factors Influencing the Indoor Air Quality

   Författare :Lars Ekberg; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : The thesis focuses on airborne contaminants in office buildings located in urban environments. The work is a contribution to a research field, the aim of which is to improve the basic knowledge needed for successful design and construction of buildings and HVAC systems, with regard to the indoor air quality. LÄS MER

4. 3. Ultra precision metrology : the key for mask lithography and manufacturing of high definition displays

   Författare :Peter Ekberg; Lars Mattsson; Torgny Carlsson; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ultra precision metrology; LCD-display; OLED-display; nm-resolution; large area; random phase measurement; acousto-optic deflection; scanning; 2D measurement; mask; CCD; CMOS; image processing; edge detection; TECHNOLOGY; TEKNIKVETENSKAP; Manufacturing engineering; Produktionsteknik;

   Sammanfattning : Metrology is the science of measurement. It is also a prerequisite for maintaining a high quality in all manufacturing processes. In this thesis we will present the demands and solutions for ultra-precision metrology in the manufacturing of lithography masks for the TV-display industry. LÄS MER

5. 4. Modeling and Optimal Control for Dynamic Driving of Hybridized Vehicles with Turbocharged Diesel Engines

   Författare :Kristoffer Ekberg; Lars Eriksson; Giorgio Rizzoni; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : Reducing the fuel consumption of today's vehicle fleet is of great importance due to the environmental impact of using fossil-based fuels. The turbocharged compression ignition (CI) engine is widely used for trucks. The CI engine efficiency is dependent on the operating point, in terms of rotational speed and load. LÄS MER

7. 5. Enhanced image analysis, a tool for precision metrology in the micro and macro world

   Författare :Bita Daemi; Lars Mattsson; Peter Ekberg; Mikael Sjödahl; KTH; []
   Nyckelord :Image processing; image metrology; precision metrology; image correlation; subpixel; accuracy; uncertainty; Production Engineering; Industriell produktion;

   Sammanfattning : The need for high speed and cost efficient inspection in manufacturing lineshas led to a vast usage of camera-based vision systems. The performance ofthese systems is sufficient to determine shape and size, but hardly to an accuracylevel comparable with traditional metrology tools. LÄS MER