Measuring super smooth surfaces generally necessitates the use of optical metrology tools, but it is important to note that optical solutions are not all the same. The choice of metrology solution for ...

A revolutionary kind of laser light called an optical frequency comb makes possible a more precise type of atomic clock and many other applications Editor's note: This story was originally posted in ...

Stacking chips is making it far more difficult to find existing and latent defects, and to check for things like die shift, leftover particles from other processes, co-planarity of bumps, and adhesion ...

There are significantly different architectures for what are known as “atomic” clocks. Optically driven atomic clocks offer a new set of performance attributes. The optical atomic clocks use paired ...