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  2. Self-propagating high-temperature synthesis - Wikipedia

    en.wikipedia.org/wiki/Self-propagating_high...

    Self-propagating high-temperature synthesis is a green synthesis technique that is highly energy efficient, using little if any toxic solvents. There have been environmental analysis conducted to show that SHS has a lesser environmental impact than traditional solution-phase processing techniques. [ 5 ]

  3. Buffered oxide etch - Wikipedia

    en.wikipedia.org/wiki/Buffered_oxide_etch

    Buffered oxide etch is commonly used for more controllable etching. [1] Buffering HF with NH 4 F results in a solution with a more stable pH; thus, more stable concentrations of HF and HF − 2, and a more stable etch rate. [2] Some oxides produce insoluble products in HF solutions.

  4. Surface treatment of PTFE - Wikipedia

    en.wikipedia.org/wiki/Surface_treatment_of_PTFE

    It also lowers the viscosity of the etchant which enhances wetting of high aspect ratio features such as plated through-holes in printed circuit boards. Tests of diglyme-based etchants used at 50 °C have shown bond strength increases of 50% or more over room temperature etching. [1] Commercially available etchants today are primarily glyme-based.

  5. Harbor Freight Tools - Wikipedia

    en.wikipedia.org/wiki/Harbor_Freight_Tools

    Harbor Freight Tools, commonly referred to as Harbor Freight, is an American privately held tool and equipment retailer, headquartered in Calabasas, California. It operates a chain of retail stores, as well as an e-commerce business. The company employs over 28,000 people in the United States, [5] and has over 1,500 locations in 48 states. [6] [7]

  6. Harbor Freight Tools new 16,000-square-foot store to open in ...

    www.aol.com/news/harbor-freight-tools-16-000...

    Harbor Freight Tools is opening a new 16,000-square-foot store in Fort Worth later this winter and will be hiring for 25 to 30 positions, the discount tool company said in a press release.. The ...

  7. Chemical milling - Wikipedia

    en.wikipedia.org/wiki/Chemical_milling

    A high-purity (≥99.9998%) aluminium bar that has been etched to reveal the component crystallites. Chemical milling or industrial etching is the subtractive manufacturing process of using baths of temperature-regulated etching chemicals to remove material to create an object with the desired shape.

  8. Etching (microfabrication) - Wikipedia

    en.wikipedia.org/wiki/Etching_(microfabrication)

    Etching tanks used to perform Piranha, hydrofluoric acid or RCA clean on 4-inch wafer batches at LAAS technological facility in Toulouse, France. Etching is used in microfabrication to chemically remove layers from the surface of a wafer during manufacturing. Etching is a critically important process module in fabrication, and every wafer ...

  9. Plasma etching - Wikipedia

    en.wikipedia.org/wiki/Plasma_etching

    Plasma etching is a form of plasma processing used to fabricate integrated circuits. It involves a high-speed stream of glow discharge of an appropriate gas mixture being shot (in pulses) at a sample. The plasma source, known as etch species, can be either charged or neutral (atoms and radicals).

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