Float-zone silicon is very pure silicon obtained by vertical zone melting. The process was developed at Bell Labs by Henry Theuerer in 1955 as a modification of a method developed by William Gardner Pfann for germanium.

2023年12月18日 · Float-zone silicon is a high-purity alternative to crystals grown by the Czochralski process. The concentrations of light impurities, such as carbon and oxygen, are extremely low.

Below is a summary of how the float zone approach to growing silicon crystals works, what its advantages are and what setbacks it has. The float zone method passes silicon crystals through a feedstock heated via radio frequency.

Silicon wafers are either produced via the Czochralski- (CZ-) or Float zone- (FZ-) method. The more expensive FZ wafers are primarily reasonable if very high-ohmic wafers (> 100 Ohm cm) are required.

The float zone (FZ) method—developed by Henry Theuerer—produces the highest-purity crystalline silicon. The advantage of using this process is that the resulting silicon from this process has extremely low concentrations of common impurities such, as carbon and oxygen, with concentrations typically below 5 × 10 15 cm -3.

In this process, a molten region is slowly passed along a rod or bar of silicon. Impurities in the molten region tend to stay in the molten region rather than be incorporated into the solidified region, thus allowing a very pure single crystal region …

2024年6月6日 · In this article, we provide an in-depth overview of float zone silicon from our perspective as a leading producer, including its unique production method, transmission-relevant properties, applications exploiting this transmission capacity, and the outlook for this vital semiconductor material.

2016年7月26日 · Float zone (FZ) wafers, also known as perfect single crystal wafers, are an extremely pure form of single crystal silicon manufactured by WaferPro. They are produced using the float zone crystal growth method and have unique properties that make them suitable for demanding semiconductor and electronics applications.

Zone melting (or zone refining, or floating-zone method, or floating-zone technique) is a group of similar methods of purifying crystals, in which a narrow region of a crystal is melted, and this molten zone is moved along the crystal.

Float Zone silicon (FZ) is very pure silicon obtained by vertical zone melting. The process was developed at Bell Labs by Henry Theuerer in 1955. In the vertical configuration molten silicon has sufficient surface tension to keep the charge from separating.