Etchants refer to the chemical that can selectively etch or peel the target film to obtain the designed pattern in the semiconductor etching process. The wet etching is one of the most important etching process, which mainly achieves the etching goal through chemical reaction between etchants and target films. Almost every target film has a specially suitable etchant to ensure high quality etching results.
Etchants are mainly used in the etching process of integrated circuit manufacturing and flat panel display manufacturing.
In the manufacturing process of integrated circuits, fabs need to make very fine patterns on the wafer. Etchants are the key to forming these fine patterns. They can accurately transfer the photoresist pattern produced by photolithography to the material under the photoresist and form the complex architecture of integrated circuits.
In the manufacturing process of flat panel display, fabs make circuit patterns on the thin films by etchants to ensure the flat panel display can be lit. Wet etching is often used in flat panel display manufacturing and different target films match different etchants. For example, the etchant of molybdenum/aluminum metal layer is a mixture of phosphoric acid, nitric acid, acetic acid and additives (potassium nitrate or potassium chloride), while the etchant of Cu metal layer is composed of hydrogen peroxide and additives.
Alfa Chemistry provides etchants for customers, including but not limited to the following products.
Buffered Oxide Etchant (BOE)
Low Tension BOE
MoAl / MoAlMo Etchant
Hydrofluoric Acid Etchant (HF) With Surfactant
Metal Oxide Etchant
Metal Stacked Film Etchant
Alfa Chemistry has been developing etchants through close alignment with our customers' performance targets, and by using our own technologies, abundant experience, and the utmost safety and environmental awareness. We are confident that our etchants will contribute to your research.
Alfa Chemistry provides etchants custom services according to your requirements. We are committed:
No matter you have any questions about etchants, please call us and we will provide you with professional and quality services.
If you do not find the product or would like to request a quote, please contact us.