QUADRUPOLE MASS FILTER ANALYZER MANUFACTURING PROCESS Russian patent published in 1997 - IPC

FIELD: dynamic mass-spectrometry in manufacturing quadrupole mass filters. SUBSTANCE: high-precision metal mold having its external surfaces corresponding to internal ones of analyzer is produced, insulators are mounted on mold, intermediate metal layer, 5-10 mcm thick, with melting point not over 400 C, such as indium, is applied to mold by electrolytic deposition, for example, and then main metal layer is applied, for example, by electrolytic deposition, its thickness being at least 0.1 mm to ensure desired strength of analyzer, metal is removed at joints between different electrodes, then mold is removed. EFFECT: improved resolution and sensitivity of analyzer, its mechanical strength and vibration resistance, facilitated manufacture, and reduced cost. 1 dwg