Logitech WBS7 - Procedure for Wax Mounting with Spin-On Crystalbond

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Revision as of 15:01, 11 March 2025 by John d (talk | contribs) (Added crystal bond grams and ACE mL, and mentioned cleaning polos chuck and wafer backside)
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Work In Progress

This article is still under construction. It may contain factual errors. Content is subject to change.


Draft only - in progress. Based on Don Freeborn's procedure for the Logitech Bonder. -- Demis 2018-10-16
  • Mix a fresh squirt bottle of CrystalBond diluted with Acetone (see Don Freeborn for method).
    • 100 grams of crystalbond, mixed into
    • 200 mL of Acetone, in dedicated squirt bottle
    • Shake/stir to completely dissolve the wax
  • Place 4-inch silicon carrier wafer on POLOS spinner in solvent bench, with non-vacuum 4-inch chuck installed.
  • Set up POLOS recipe
    • Spin at 2000 rpm, there should be a recipe for this, eg. “Backside” recipe.
  • Squirt wax solution onto wafer
  • Press [>] to spin.
    • Optionally dispense during the spin to prevent wax getting on back of wafer
  • Stop dispensing and Press [>] to stop spinning.
  • Clean POLOS Chuck by spinning with no wafer and dispensing ACE via squirt bottle
  • Place wafer Face DOWN and POLOS spin at ~1000-3000rpm while spraying ACE then ISO in wafer center, to clean wax off back side.
  • Place carrier wafer on Logitech bonder surface
  • Place sample to be bonded on top
  • Place 110mm chemical filter paper on top
  • Close lid, secure lid clamp
  • Run recipe:
    • XYZ °C
    • XYZ seconds
    • Vacuum etc.?