Light microscope is an optical instrument that uses optical principles to magnify and image tiny objects that cannot be distinguished by the human eye, so that people can extract microstructure information. The application of electron microscopy technology is based on the basis of optical microscopy. The resolution of the light microscope is 0.2 μm, andContinue reading “Comparison Between Light Microscope & Electron Microscope”
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Challenge in the Next Ten Years – Quantum Computing
For many people, these three things will bring us incredible challenges in the coming years: quantum computing, generalized artificial intelligence, and large-scale space travel will all be there. For now, quantum computing is on the verge of changing the world we live in forever, while the other two things are still in their infancy. InContinue reading “Challenge in the Next Ten Years – Quantum Computing”
Thermal Evaporation History Part Two (From early 1900s to mid 1900s)
In 1912 von Pohl and Pringsheim reported forming films by evaporation materials in a vacuum from a magnesia crucible that was heated by a resistively heated foil surrounding the crucible. They are sometimes credited with the first deposition by thermal evaporation in vacuum. In 1913, Langmuir studied the vaporization rate of materials in vacuum andContinue reading “Thermal Evaporation History Part Two (From early 1900s to mid 1900s)”
Thermal Evaporation History Part One (From late 1800s to early 1900s)
Thermal evaporation or vacuum evaporation is the vaporization of the evaporation material by heating to a certain temperature, so that the vapor pressure becomes appreciable, and the surface or molecules are lost from the surface in the vacuum. Vaporization can come from the surface of a liquid or from the surface of a solid. TheContinue reading “Thermal Evaporation History Part One (From late 1800s to early 1900s)”
Case Study: Defect Detection in Gold Evaporation
Currently, integrated circuits–the microelectronic devices or components–are moving toward high speed, small size, and narrow pitch. An integrated circuit usually uses a certain process to interconnect components and wirings such as transistors, diodes, resistors, capacitors, and inductors required in a circuit; and these components are fabricated on one or several tiny semiconductor wafers or dielectricContinue reading “Case Study: Defect Detection in Gold Evaporation”
4 Types of Vacuum Evaporation Coating
Resistance evaporation The resistance evaporation source is used to evaporate low melting point materials such as gold, silver, zinc sulfide, magnesium fluoride, chromium oxide, and the like. The resistance evaporation source is generally made of tungsten, molybdenum or tantalum. Electron beam evaporation The evaporating material is vaporized and evaporated by electron beam heating, and condensed on the surface of the substrate to form aContinue reading “4 Types of Vacuum Evaporation Coating”
Vacuum Evaporation Coating 