Ingaas/inp type pin photodiodes

H - Electricity – 01 – L

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

345/27

H01L 31/10 (2006.01) H01L 31/02 (2006.01) H01L 31/075 (2006.01) H01L 31/105 (2006.01)

Patent

CA 1292055

InGaAs/InP TYPE PIN PHOTODIODES ABSTRACT OF THE DISCLOSURE: An InGaAs/InP type PIN photodiode comprising an n-InP substrate 1 having one surface and an opposite surface, an n-electrode 8 provided on said one surface of the n-InP substrate, an n-InGaAs layer 2 formed by epitaxial growth on said opposite surface of the n-InP substrate 1, a p-InGaAs layer 5 formed by diffusing a p-type impurity in a part of said n-InGaAs layer 2, a ring-like p-electrode 4 provided on the p-InGaAs layer 5. The portion of the p-InGaAs layer 5 encircled by the ring-like p-electrode 4 is partly removed to form a recess 9, and the thickness of the recessed por- tion of the p-InGaAs layer 5 is less than 2.0 µm. Further, the thickness L of the p-InGaAs layer 5 under the p- electrode 4 is larger than 3.0 µm. Light is introduced into said recess 9. With such arrangement, the structure of the n-InP window layer (shown by 24 in Fig. 2) of the conventional example of Fig. 2 can be omitted. Further, the light detection sensitivity can be improved and dark current can relatively be lessened.

577345

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Ingaas/inp type pin photodiodes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ingaas/inp type pin photodiodes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ingaas/inp type pin photodiodes will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1194020

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.