Search results
Results From The WOW.Com Content Network
Wafering is the process by which a silicon crystal is made into wafers. This process is usually carried out by a multi-wire saw which cuts multiple wafers from the same crystal at the same time. These wafers are then polished to the desired degree of flatness and thickness.
A typical wafer is made out of extremely pure silicon that is grown into mono-crystalline cylindrical ingots up to 300 mm (slightly less than 12 inches) in diameter using the Czochralski process. These ingots are then sliced into wafers about 0.75 mm thick and polished to obtain a very regular and flat surface.
Mock cream or buttercream is a simple buttercream made by creaming together butter and powdered sugar to the desired consistency and lightness. Some or all of the butter can be replaced with margarine, or shortening. [1] [2] A small amount of milk or cream is added to adjust the texture. Usually twice as much sugar as butter by weight is used.
Wafer fabrication is a procedure composed of many repeated sequential processes to produce complete electrical or photonic circuits on semiconductor wafers in a semiconductor device fabrication process. Examples include production of radio frequency amplifiers, LEDs, optical computer components, and microprocessors for computers. Wafer ...
Buttercream frosting is typically made with powdered sugar, butter and vanilla extract or another flavoring. Sometimes salt and milk or heavy cream can be added. Sometimes salt and milk or heavy ...
Glob-top is a variant of conformal coating used in chip-on-board assembly (COB). It consists of a drop of specially formulated epoxy [4] or resin deposited over a semiconductor chip and its wire bonds, to provide mechanical support and exclude contaminants such as fingerprint residues which could disrupt circuit operation. It is most commonly ...
By using a liquid with a higher refractive index than air, immersion lithography allows for smaller features to be created on the wafer. [1] Immersion lithography replaces the usual air gap between the final lens and the wafer surface with a liquid medium that has a refractive index greater than one.
Piranha solution is used frequently in the microelectronics industry, e.g. to clean photoresist or organic material residue from silicon wafers. It is also widely employed in wet etching of wafers in the semiconductor fabrication process. [1]