SPI Supplies Molybdenum Rings for Ion Milling, Pack of 10
While copper rings are easier to produce, molybdenum is far more chemically inert in the wet etching solutions used in the preparation of integrated circuit samples. Each Mo ring is manufactured to exact specifications for this special application. Dimensions are 3 mm OD and 1.5 mm ID. Thickness is 0.03 mm. We have reduced the thickness to the very minimum possible to virtually eliminate "shadowing effects" when doing low angle ion milling, which seems to be becoming more and more frequently the method of choice.
Package of 10