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Some Facts on Wafer Dicing

By Nishaidhijames Subscribe to RSS | July 9th 2012 | Views:
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Wafer dicing is a method that is much in vogue in the semiconductor industry. This method is used to separate a die from a wafer of semiconductor. This task is accomplished through several means like breaking and scribing, mechanical sawing, or through laser cutting. A wafer dicing machine is used to cut wafers into individual or separate semiconductor chips, with the aid of dicing blades.

The various methods of wafer dicing include:

• Breaking and scribing – this is primarily done in a substrate, which is made of brittle material. This helps in achieving a good quality cutting surface of the substrate, without any major defects like chippings o the substrate. In this process of semiconductor wafer separation, a stress is created in the water and then along the stress line, the wafer is fractured..

• Mechanical sawing – this is done with the aid of a mechanical machine called the dicing saw. This process is used primarily for a micro electro-mechanical system semiconductor device. Although, this method is still in use, it is gradually becoming unpopular due to several disadvantages; it is a slow process, it releases contaminants, and several others.

• Laser cutting – this is a more technology which is used for cutting semiconductor materials. In this process, the unwanted parts are burned away, leaving behind an edge which has a high-quality finished surface.

In the entire process of wafer dicing, the dicing blades play a very important part. Various types are dicing blades are employed for this purpose. Some among them are:

• Hubbed Nickel Bonded Blades.

• Hubbed Resin Bonded Blades.

• Metal Sintered Dicing Blades.

• Hubless Resin Bonded Blades.

Thus, for those who want to embark upon the process of dicing wafers, the above information shall prove to be useful for them.

Nishaidhijames - About Author:
For more information on wafer dicing, check out the info available online; these will help you learn to find the http://www.kadcoceramics.com/process-capabilities.htm!

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