response speed #02

Such devices generally have good response speed, but minimal quantum efficiency. Thickening the depletion region increases quantum efficiency but at the expense of response speed.

Non-photo-type lateral transistors are known in the art, but they generally have higher base resistance, and hence, slower response speed than vertical transistors.

What is needed is a photo detector that provides broad spectral bandwidth sensitivity and improved output signal intensity without sacrificing response speed.

It is a further object of the present invention to provide a photo detector having good response speed for high frequency applications.

In accordance with the foregoing objectives, an integrated circuit-compatible photo detector is provided that is constructed using lateral semiconductor structures having superior spectral bandwidth sensitivity and output signal intensity, and also having suprisingly robust response speed.

US Pat. 5994162