The Fiberoptic Communications Specialists


The H & L Instruments Model 102c Edge Profile Comparator lets you inspect the edges of your wafer to guard against chipping and mishandling by wafer handlers. By creating a shadow-edge profile image, this qualitative inspection instrument helps you verify compliance to specifications, without sacrificing the wafer.
         

Screenshots from 102C:
wafer edges and defective grinding wheel
(click to enlarge)

The H & L Instruments Model 900a Edge Profile Comparator is a compact, self-contained optical instrument for inspection of the leading and trailing edges of turbine engine fan and compression blades. It features a hand-held, rugged, stainless steel-encased optical module coupled to a portable high-resolution video display.

Read applications note or view data sheets (pdf)