Patent ID: 9466631
Filing Date: 2016-10-11
CPC Classification: H01L

Claim Text:
1. A multi-pixel photomultiplier optical sensor comprising: a multilevel printed circuit board; a plurality of electrically conductive traces carried by said multilevel printed circuit board; a plurality of electrically conductive pads carried by said multilevel printed circuit board; an electrically conductive bus carried by said multilevel printed circuit board; a plurality of electrically conductive pins carried by said multilevel printed circuit board and comprising a first group along a perimeter of said multilevel printed circuit board, and a second group on a surface of the multilevel printed circuit board; each electrically conductive pin from said first group being coupled via said plurality of electrically conductive traces to said electrically conductive bus; each electrically conductive pin from said second group being coupled via said plurality of electrically conductive traces to a respective electrically conductive pad; an array of monolithic silicon photomultiplier (SiPM) dies, each monolithic SiPM die having a front side and a rear side; each monolithic SiPM die comprising said array of monolithic SiPM dies being positioned side-by-side; said electrically conductive bus being coupled to at least one electrically conductive pin for uniformly distributing bias current to all of said array of monolithic SiPM dies; and a plurality of electrically conductive bond wires coupling at least some of the plurality of electrically conductive pads to said electrically conductive bus, and distributing bias current to said array of monolithic SiPM dies via said electrically conductive bus.