HIGH-PRECISION VACUUM DEVICE AND METHOD OF ITS PRODUCTION Russian patent published in 2009 - IPC H01J19/00 H01J23/00 

FIELD: physics.

SUBSTANCE: tight block switching fixtures represent welded components with separate tight leadouts incorporating rigid conducting terminal extenders with a flat flange while coaxial tight leadouts incorporate flexible terminal extenders fitted on the rods arranged on the surface of ceramic plates in rows with the difference in height of top points of the flexible conducting terminal extenders between the first and every subsequent row h defined from the formula h=l·sinα, where l is the distance between the first and each subsequent row and α is the angle of inclination of a plane of the contact between the top points of the aforesaid flexible conducting terminal extenders to the ceramic plate plane. The terminal block comprises also cylindrical extender sleeves with tabs arranged on both end faces. Note that the said tabs of the lower end face are bent along the radius by the angle of 90° outward from the sleeve axis of symmetry. Note also that, at the top end face, the said tabs are vent two times by 90° towards the aforesaid axis of symmetry of the sleeve. To weld the aforesaid fixtures, a pulsed laser radiation makes a heating source.

EFFECT: high level of technological and operational properties of proposed tight block.

2 cl, 1 dwg