Silicon is one of the most readily available elements on the entire planet and thankfully there is a good silicon wafer supplier that can help you find what you need. When it comes to the fabrication process of these wafers, there are many different ways to do it. Three of the most common methods are the vertical Bridgman method, the horizontal gradient freeze method, and the horizontal Bridgman method. Let’s take a quick look at each of these methods.
The vertical Bridgman method is a popular way to fabricate the silicon. The quartz or PBN crucible contains the seed in a well at the bottom and some polycrystalline material above it. If growth is going to occur, the initial charge and portion of the seed need to be melted and the crucible is then lowered slowly into the bottom section of the furnace.
This gradient method is known as a static technique. The melted material is gradually solidified by the movements of the temperature gradient along the melt. This technique utilizes a sealed tube that holds the starting materials. These materials are then separated, allowing them to reach with each other.
The horizontal Bridgman method takes place when the furnace is moved along the length of the quartz tube. This is done in a way that the solidification process of the melt starts from the seed crystal is achieved as the seed is moved from the hotter to a colder section of the furnace. The shape of the crystal is constrained by the walls of the tubing.
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