Product Guide
BL Cure – Light Curing System BL Cure is a clear, very low viscosity, fast-curing one-part resin that is methacrylate-free and cures rapidly (5 – min) when exposed and only reacts when heat is applied. Once cured, it is resistant to most chemical etchants and will not outgas under vacuum. The unlimited pot life provides plenty of time for handling, positioning, and other needs. It does not offgas and can be used outside of a fume-hood and is compatible with vacuum mounting. It is resistant to alcohols and acids, so cleaning and etching will have little effect.
Instructions – Light Chamber This technique is recommended for when the IC does not have a passivation layer, when rounding occurs during cross-sectioning or for bond pad protection. 1. Using the droppers provided with the bottles, mix 10 drops of Part A (resin) with 1 drop of Part B (hardener) in a mixing cup. Mix thoroughly with a stir stick until the liquids are homogenous in color and no striations appear. 2. Using the stir stick, drip the mixed EpoxyBond 110 onto a glass cover slip (#72-20000) so that the epoxy covers an area slightly larger than the sample. 3. Place the sample into the epoxy, circuit side down, so that the edge of the die being cross-sectioned is near the edge of the glass cover slip. 4. Use an alligator clip to clamp the sample and glass slide together. The pressure will create a thin bond line that allows the sample to be viewed under a microscope through the epoxy. Place the clamped sample into the BL-100 light curing chamber. 5. For best results, determine if the epoxy is cured by its color, not by time. Cured EpoxyBond 110 will be a deep, brick red. Once the epoxy has cured, let it cool. Note: Do not quench EpoxyBond 110 to cool it. 6. Grind sharp corners and excess glass from the edges of the die. The edges may also be scored with a scribe and then broken. This will eliminate scoring of the abrasive films used for polishing.
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