70456-74-5 Usage
Uses
Used in Semiconductor Industry:
AMMONIUM FLUORIDE ETCHING MIXTURE SOLUTI is used as a buffered oxide etch (BOE) bath for the dissolution of photoresist. This application is crucial in the manufacturing process of semiconductor devices, as it allows for the precise removal of unwanted photoresist layers, enabling the creation of intricate patterns and structures on the silicon wafer.
Used in Microfabrication Industry:
In the microfabrication industry, AMMONIUM FLUORIDE ETCHING MIXTURE SOLUTI is employed as an etchant for selectively etching materials such as silicon dioxide, silicon, and other related materials. This selective etching capability is essential for creating microstructures and features with high precision and accuracy, which are required in various applications, including microfluidics, sensors, and actuators.
Used in Photolithography Process:
AMMONIUM FLUORIDE ETCHING MIXTURE SOLUTI is used as a developer in the photolithography process, which is a critical step in the manufacturing of integrated circuits and microelectromechanical systems (MEMS). The etching solution helps in removing the exposed photoresist layer, revealing the underlying material that can be further processed or etched to create the desired pattern.
Used in Surface Preparation:
AMMONIUM FLUORIDE ETCHING MIXTURE SOLUTI is also used for surface preparation in various applications, such as cleaning and etching of glass, quartz, and other materials. This etching process helps in removing surface imperfections, contaminants, and unwanted layers, resulting in a clean and smooth surface that is ready for further processing or application.
Check Digit Verification of cas no
The CAS Registry Mumber 70456-74-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,4,5 and 6 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 70456-74:
(7*7)+(6*0)+(5*4)+(4*5)+(3*6)+(2*7)+(1*4)=125
125 % 10 = 5
So 70456-74-5 is a valid CAS Registry Number.