Method of manufacturing a medicament dispenser device

摘要

602102 A method of treating a component (50) of a medicament dispenser device is disclosed. At least one of the surfaces of the component which comes in contact with a medicament is coated by plasma deposition to inhibit surface deposition or degradation of the medicament. The component is earthed and the plasma deposition is performed under DC bias control with fixed DC bias to maintain a constant electron emission and constant plasma density. The resulting coating is more uniform than when the DC bias is reduced as the coating thickness increases.