Patent ID: 6777729
Filing Date: 2004-08-17
Classification: H01L,Y02E

Abstract:
A semiconductor photodiode comprising a semiconductor substrate in which a p-n junction is formed and incident radiation energy can generate charge carriers separable by an electric field generated by said p-n junction and said carriers are conductible by first and second electrically conductive contacts,where said first electrical contact extends from said p-n junction near the surface of said photodiode to the back of said photodiode substrate, and said first electrical contact has an etched contact channel which extends from the back of said photodiode substrate to within 10 to 100 microns of said photodiode surface with cross sectional area of said channel having the dimensions of about 0.125 mmÃ—0.125 mm, and said second electrical contact is located on the back of said photodiode substrate.