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cleaning [2013/02/27 07:25] – mcmaster | cleaning [2013/10/20 14:59] – external edit 127.0.0.1 | ||
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Optics cleaning gives a lot of general guidelines on cleaning, consider consulting a textbook for more detail. | Optics cleaning gives a lot of general guidelines on cleaning, consider consulting a textbook for more detail. | ||
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====== Choice of solvent ====== | ====== Choice of solvent ====== | ||
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* Alcohols, especially isopropanol (isopropyl alcohol) and ethanol | * Alcohols, especially isopropanol (isopropyl alcohol) and ethanol | ||
* Acetone | * Acetone | ||
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+ | ====== JM chip cleaning procedure as of 03/09/2013 ====== | ||
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+ | * Fill 10 mL glass vial w/ polyprolyene cap about 2/3 full with acetone | ||
+ | * Glass has better acoustic coupling than plastic and removes a lot more | ||
+ | * Place chip in above vial and sonicate for 1 minute | ||
+ | * Empty acetone out into second identical vial, leaving the chip behind | ||
+ | * Fill 50 mL polypropylene (PP) vial with 30 mL water + detergent | ||
+ | * glass vial would probably work just as well if not better | ||
+ | * Shake chip from glass vial into PP vial | ||
+ | * Sonicate for 1 minute | ||
+ | * Pour solution from 50 mL PP into second identical PP, leaving chip behind | ||
+ | * Flood chip with water in vial, letting it fill past the top and refilling a few times until all suds are removed | ||
+ | * Fill another 50 mL PP with 30 mL acetone | ||
+ | * Shake chip from empty suds vial into final wash acetone vial | ||
+ | * Sonicate for one minute | ||
+ | * Pour most of acetone, leaving a few drops, into yet another 50 mL bottle | ||
+ | * With lid closed, shake chip so that its near mouth of vial with die facing up | ||
+ | * Alternatively carefully slosh it up there before pouring | ||
+ | * Use carbon fiber tweezers to grab die and place face up in PP sealable petri dish | ||
+ | * Seal petri dish | ||
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+ | Other notes: | ||
+ | * All vials are labeled to easily tell apart solutions | ||
+ | * The final acetone vial should have a flat surface near the lid to make it easy to grab | ||
+ | * Don't use the same acetone solution or vial for the initial and final wash | ||
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====== Ultrasound ====== | ====== Ultrasound ====== | ||
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* Higher initial cost than other techniques presented here | * Higher initial cost than other techniques presented here | ||
* Takes a few minutes (but hopefully you aren't THAT impatient) | * Takes a few minutes (but hopefully you aren't THAT impatient) | ||
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+ | ===== Choice of container ===== | ||
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+ | {{:: | ||
+ | {{:: | ||
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+ | Using a glass container with strong ultrasound cleans the chip well, but may be stronger than needed. | ||
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===== Case study ===== | ===== Case study ===== |