Patent ID: 8858714

Claim:
Injector for a vacuum evaporation source comprising: an injection duct ( 1 ) having a longitudinal axis ( 11 ) and comprising an inlet port ( 2 ) to be connected to a vacuum evaporation source, and at least one nozzle ( 3 ) for diffusing a vaporized material, said nozzle ( 3 ) having a lateral face ( 4 ), and an upper face ( 5 ) with an upper opening ( 29 ), wherein said nozzle ( 3 ) comprises a main channel ( 6 ) emerging outside said injection duct ( 1 ) and at least one lateral feeding channel ( 7 ) connecting the interior of the injection duct ( 1 ) to the main channel ( 6 ), said lateral feeding channel ( 7 ) having a lateral orifice ( 8 ) emerging inside said injection duct ( 1 ) through the lateral face ( 4 ) of said nozzle ( 3 ) thereby avoiding clogging of the upper opening ( 29 ) of the main channel of the nozzle by oxidized materials staying on the upper opening ( 29 ) of the upper face of the nozzle.