QUESTION:
In APC polishing is conical or step ferrules more expensive?
ANSWER:
Of the two common ferrule shapes involved in APC polishing – conical and step – the step ferrule is by far the easiest in terms of controlling geometries.
Step ferrules are more expensive than conical ferrules. However, from a purely process-control point of view, step ferrules are absolutely the easiest and best choice. If you are new to APC polishing, it is highly recommended to use step ferrules over conical. Step ferrules are less sensitive to minor process and material variations, and they are much easier to work with when it comes to developing and modifying polishing processes. Thus, using step ferrules results in significantly improved first-pass yields.
READ THE FULL BLOG ARTICLE HERE: APC Polishing Advice to Improve Apex Offset and Angle Measurements
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