Search International and National Patent Collections

1. (WO2017154073) ION GATE AND ION MOBILITY SPECTROMETER

Pub. No.:    WO/2017/154073    International Application No.:    PCT/JP2016/056976
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Tue Mar 08 00:59:59 CET 2016
IPC: G01N 27/62
H01J 49/06
H01J 49/40
Applicants: SHIMADZU CORPORATION
株式会社島津製作所
Inventors: YASUNO, Motohide
安野 元英
IMAZU, Akiko
今津 亜季子
Title: ION GATE AND ION MOBILITY SPECTROMETER
Abstract:
In the present invention, to prevent an ion gate known as a BN gate from shorting during use in a high-temperature environment because of grid loosening resulting from differences in the amounts of thermal expansion of a substrate and electrode, a substrate that forms a pair of comb electrodes 21, 22 is made to be a structure in which both ends of two insulating substrates 11, 12 are connected with a space therebetween by connection members 13, 14. The space surrounded by these four members is made to be an opening 15 for ion passage. Each of the linear electrodes A of the comb electrodes 21, 22 crosses over the two insulating substrates 11, 12 and has both ends fixed thereto. The two connection members 13, 14 are formed from a material having the same coefficient of thermal expansion as the coefficient of thermal expansion of the linear electrode A.