Masters thesis possibilities
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Masters Thesis Possibilities. Nicholas Clore August 10, 2010. Tin Whiskers in Humidity Controlled Environment. Thesis Topic: Growth of Tin Whiskers in a Controlled Humidity Environment.

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Masters thesis possibilities

Masters Thesis Possibilities

Nicholas Clore

August 10, 2010

Tin Whiskers in Humidity Controlled Environment


Thesis topic growth of tin whiskers in a controlled humidity environment

Thesis Topic: Growth of Tin Whiskers in a Controlled Humidity Environment

  • High temperature/high humidity storage(55 – 65 °C / 85 – 93 %RH) has been shown to accelerate whisker growth

  • Most research focuses on:

    • High temp/low humidity (65 °C/30%RH)

    • Room temp/low humidity (25 °C/30%RH)

    • Room temp/high humidity (25 °C/85%RH)

    • High temp/high humidity (65 °C/85%RH)


Thesis topic growth of tin whiskers in a controlled humidity environment1

Thesis Topic: Growth of Tin Whiskers in a Controlled Humidity Environment

  • Although it has been seen that high humidity promotes whisker growth, the mechanics and science is not well understood.

  • The proposed thesis topic would investigate the affects of humidity on Tin samples and their whisker growth.


Masters thesis possibilities

Master’s Thesis Options


Cisco forestie

Cisco/Forestie

  • Samples would be prepared and cycled/stored by Cisco/Foresite.

  • Thesis would be based on whisker analysis.

  • Timeline? Finish Thesis by June, 2011? Sept, 2011?


Use temperature humidity controlled furnace

Use Temperature/Humidity Controlled Furnace

  • Temp/Humidity controlled furnace would save time on sample prep and increase reliability.

  • Could rent/buy one for Cincinnati Sub-Zero

  • Borrow one from Crane?

  • Temperature Range: -73°C to 190°C

  • Humidity Range: 10% to 95% RH

Cincinnati Sub-Zero Bench top model


Impermeable bag sealed polymer box

Impermeable Bag/Sealed Polymer Box

  • Would store samples in impermeable bags or polymer box for heat treatment at Purdue-Calumet.

  • Bag/box would include hydrated salt to control humidity


Using saturated salts to control humidity

Using Saturated Salts to Control Humidity

  • Accurate humidity at set temperatures.

  • Wide range of achievable humidity and various temperatures.

  • Will not work well with temperature cycling.

  • Possible “salt creep” on to samples.


Using saturated salts to control humidity1

Using Saturated Salts to Control Humidity

Table from Omega – Table is not inclusive


Quantomix wetsem

Quantomix WETSEM

  • Store sample in enclosed SEM stage with set humidity using salt.

  • Real-time photos with heat cycling using SEM.


Masters thesis possibilities

Master’s Thesis Options


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