Patent ID: 9534287
Date: 2017-01-03
CPC Classifications: C23C,H01J

Claim:
1. An ion implantation machine comprising: an enclosure (ENV) that is connected to a pump device (VAC); a negatively polarized (HT) substrate-carrier (PPS) that is arranged inside said enclosure (ENV); and a plasma feed device (AP) in the form of a generally cylindrical body extending between an initial section and a terminal section, the device having a main chamber (PR, PR said main chamber (PR, PR the final section (CL) of said main chamber being provided with head-loss means for creating a pressure drop relative to said body (AP); the machine being characterized in that said plasma feed device (AP) also includes an auxiliary chamber (AUX) arranged beyond said final section, said auxiliary chamber opening out into said enclosure (ENV) at said terminal section.