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The Knowledge and Know-how Connection
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May 22, 2013
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More Mysteries of Science »
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Role of Carbon Ink in Calculators
Texas Instrument's calculators made in the 80's used a flexible circuit made with carbon ink. What vital part did the carbon ink serve?
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Views: 2737
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Having worked at one time for the "phone company", we saw a similar thing happen with flex circuits and silver ink. After testing revealed oxidation, we soon switched over to carbon ink and the problems went away. Great article. It brought back many fond memories.
George Kopacz, PNY Technologies, USA