Patent ID: 8309380
Filing Date: 2012-11-13
Classification: B82Y,H01L

Abstract:
1. A method for manufacturing a photodiode array having a plurality of absorption regions that are one-dimensionally or two-dimensionally arranged, the method comprising: an absorption layer formation step of growing an absorption layer on a first conductivity type group III-V semiconductor substrate; a window layer formation step of growing a window layer on the absorption layer, the window layer being composed of a compound semiconductor including P, and having a band gap energy greater than a band gap energy of the absorption layer; and an impurity diffusion step of diffusing a second conductivity type impurity in regions, in the window layer, corresponding to the plurality of absorption regions; wherein in the window layer formation step, the window layer is grown by metal-organic vapor phase epitaxy using only metal-organic sources, and a growth temperature of the window layer is equal to or lower than a growth temperature of the absorption layer.