To find defects, the industry wants use a technology called actinic pattern mask inspection (APMI). Using the same 13.5nm wavelength as EUV, APMI can supposedly find more defects than today’s ...

Our eyes are great at gathering information, but it is our brain that actively analyzes it and shapes our perspective of the world. This is where optical illusions come in, using the way our brain ...

The response of the material to afterglow at specific excitation wavelengths is exploited by using different optical masks to ...

Mask costs are the top concern, but mask complexity, write times and defect inspection are the other key issues for both optical and EUV photomasks. Now, mask metrology, the science of measuring the ...

For the first commercial demonstrations of EUV lithography, EUV mask fabrication will use many of the same process steps as for optical masks and re-use much of the existing advanced mask shop ...

Less people are wearing face masks than they did during the Covid-19 pandemic, but they’re still a great piece of personal protective equipment to keep at home. They can help prevent illness ...

Light sleepers, stomach sleepers and those with sensitive skin can benefit from a great sleep mask. From silk sleep masks to weighted eye masks, we found the best sleep mask to block light and ...

All zoom lenses in film cameras and digital single lens reflex (DSLR) cameras are optical zoom. Digital point-and-shoot cameras as well as consumer and prosumer video camcorders have optical zoom ...

They don’t feel special. Face masks, on the other hand, are an every-once-in-a-while treat for your skin. Sheet masks, which are a type of face mask, are popular for good reason — the masks ...

An optical lens is a transparent optical component used to converge or diverge light emitted from a peripheral object. The transmitted light rays then form a real or virtual image of the object.