IN RESEARCH
Silicon is widely used as a raw material for microchips and transistors because it can be purified easily, and it also cheaper compared to other semiconductor materials. Silicon wafers are round and flat semiconductor discs which are made from pure mono-crystalline silicon. Crystals are grown on the surface of the wafer, and they define electrical conductivity of the chip. Silicon wafers are the foundation of semiconductor devices used in electronic gadgets and equipment. These are widely used in building electronic circuits because of their conductivity and affordability.
Pure silicon crystal is nearly insulating, however, its behavior can be changed by adding some impurities, called dopants, like indium, boron and aluminum, to control resistivity to an exact specification. To make a semiconductor out of silicon, it must be turned into a wafer, and hence the silicon wafer. If light or moderate doping is used, the semiconductor is considered extrinsic. However, if a high level of doping is used, it is called degenerate that makes the conductor act nearly like a conductor.
Custom shapes and sizes of silicon wafers
Choosing the right size and thickness of silicon wafer is essential for electronic gadgets, as well as research and semiconductor fabrication processes. Even though silicon wafers greater in size than 12 inches are available but 4 inch silicon wafers remain popular for research, computational science, medical instruments, and low volume production. 4 inch silicon wafer is mostly used as a test wafer in research and fabrication laboratories. It is made by creating a large circular shape which is then drilled to hold different compounds. The shape of 4 inch silicon wafers can be customized also, these laboratories can have test wafers of different sizes and shapes. It can be anywhere from 165 mm to 260 mm long, and 84 mm to 120 mm wide.
4 inch silicon wafers are used as test wafers due to some unique advantages they offer, like:
• Reliability: The wafers are reliable and can withstand high temperatures without diminishing the quality of signals. So, you will be able to use the silicon wafers as test wafers or in electronics for a long.
• Custom sizing: 4 inch silicon wafer can be cut into any size to fit any application. You can use them in the size they come as test wafers, or divide them into smaller pieces to meet your project specifications.
• Easy fabrication: The process of fabricating 4 inch silicon wafer is easy, these can be easily cut, diced and shaped into any size that fits your requirements.
• Low cost of production: 4 inch silicon wafers can be fabricated at a high speed, while their cost of production remains low. So, 4 inch silicon wafers can be used for a wide range of applications that require high precision, such as microelectronics and instrumentation.
At WaferPro, you can get the best quality test wafers and 4 inch silicon wafers that are sturdy enough to support their weight without shattering when used in different applications. You can have test element group (TEG), a prototype pattern that displays the actual physical features of a chip to test whether it works adequately.
Leading silicon test wafers providers, such as WaferPro, take great care in minimizing the cost of 4 inch silicon wafers and test wafers while maintaining the quality of their manufacturing process.
