Photolithography

Photolithography is a crucial process in the semiconductor industry that involves transferring patterns onto a substrate using UV light. This technique is essential for creating intricate microelectronic components found in devices like smartphones, computers, and other electronic gadgets.

What is Photolithography?

Photolithography, also known as optical lithography, is a process used to define patterns on a substrate by selectively removing material through exposure to light.

How Does Photolithography Work?

The process begins with a photoresist-coated wafer. A mask, containing the desired pattern, is placed over the wafer. Ultraviolet light is then shone through the mask, exposing the photoresist. The exposed areas become soluble and are removed during development, leaving behind the pattern on the wafer.

Why is Photolithography Important?

Photolithography is crucial for creating the intricate patterns necessary for the miniaturization of electronic components. As technology advances, the demand for smaller and more complex devices increases, making photolithography an indispensable process in semiconductor manufacturing.

Advancements in Photolithography

Over the years, photolithography has evolved to meet the demands of the semiconductor industry. Advancements such as immersion lithography, multiple patterning, and extreme ultraviolet lithography have enabled the production of smaller features with higher precision.

Immersion lithography uses a liquid medium to enhance the resolution of the pattern, while multiple patterning techniques allow for the creation of complex patterns by overlaying multiple exposures. Extreme ultraviolet lithography utilizes shorter wavelengths of light to achieve even smaller feature sizes.

Why us？

We have extensive experience in photolithography, ensuring high-resolution and high-accuracy patterning. In addition, we offer custom-designed photomasks tailored to your specific requirements.