Patent ID: 7001794
Filing Date: 2006-02-21
Classification: B82Y,H01L,Y02E

Abstract:
1. A method of preparing an infrared detector comprising the steps of: a) growing a type-II superlattice structure on a GaSb substrate; b) fabricating detector pixels; c) passivating the detector pixels with a passivation layer; d) patterning and etching the passivation layer; e) preparing metallic contacts; f) fabricate indium bumps; g) flip-chip bonding the substrate with a Si-based ROIC on a ROIC substrate or GaAs or InP based ROIC on a ROIC substrate; and h) underfilling between the substrate and the ROIC substrate; thereby creating an infrared Focal Plane Array detector based on a type-II superlattice.