Patent ID: 9537073
Date: 2017-01-03
CPC Classifications: H01L

Claim:
1. A method for fabricating a light emitting diode (LED) die comprising: forming an epitaxial stack on a substrate having a first-type semiconductor layer comprising a p-type semiconductor layer, a multiple quantum well (MQW) layer, and a second-type semiconductor layer comprising an n-type semiconductor layer; forming a plurality of trenches in the second-type semiconductor layer; forming an n-strap layer on the epitaxial stack comprising a plurality of conductive straps and contact areas in the trenches, with the contact areas in electrical contact with the second-type semiconductor layer and with the contact areas configured to provide a total contact area; forming an electrical insulator layer on the n-strap layer; forming a first pad on the first-type semiconductor layer; forming a second pad on the second-type semiconductor layer, with the first pad and the second pad separated by a gap; and adjusting a size of the gap by selection of a length of the conductive straps.