Well, he I think made it through the eighth grade before he started cutting his way through life, and he started out in Archdale, North Carolina, which is right near High Point, in the western part of North Carolina. Your father was a plastering contractor? Woodall:Īnd what about your parents’ education? Woodall: Anderson:ĭid you? Tell me a little more about your parents. I was part of the Seventh Day Adventist community there and went to their parochial high school and grade school. That’s when it was largely Seventh Day Adventist. I have one brother who is deceased who was eight years older than I, and two half sisters, both of whom are deceased. My dad was a plastering contractor, and my mother was a homemaker. Okay, so I was born not too far from where you work, Takoma Park, Maryland. Jerry, let’s start by talking a little about your family background. I’m at Purdue University interviewing Jerry Woodall, and today is November 8, 2010. Disclaimer: This transcript was scanned from a typescript, introducing occasional spelling errors. Please bear in mind that: 1) This material is a transcript of the spoken word rather than a literary product 2) An interview must be read with the awareness that different people's memories about an event will often differ, and that memories can change with time for many reasons including subsequent experiences, interactions with others, and one's feelings about an event. Please contact us for information about accessing these materials. For many interviews, the AIP retains substantial files with further information about the interviewee and the interview itself. If this interview is important to you, you should consult earlier versions of the transcript or listen to the original tape. The AIP's interviews have generally been transcribed from tape, edited by the interviewer for clarity, and then further edited by the interviewee. This transcript is based on a tape-recorded interview deposited at the Center for History of Physics of the American Institute of Physics. The benefit of this process is that it eliminates excess material thickness for larger diameter wafers meaning that it’s cheaper, and it’s also more efficient.This transcript may not be quoted, reproduced or redistributed in whole or in part by any means except with the written permission of the American Institute of Physics.
The researchers, led by John Rogers, have created a technique that involves growing stacks of thin films of semiconductor onto a wafer and then taking each individual film off one by one and placing it onto a cheaper substrate or “base” to support the ultra thin (hundreds of nanometers to a few micrometers) film. Finally, since the wafers are cut from a larger structure using a fine wire saw, there can often be imperfections in the surface which must be chemically treated, also increasing cost. So when a larger diameter semiconductor is needed, the thickness of the wafer must also increase, increasing cost.
#A perfect day for arsenide crack#
However, the problem with silicon wafers is their size which can crack if too thin. Wafers are made from a highly purified material, typically silicon (99.999 percent-plus pure), and they have a nearly perfect crystalline structure.
A wafer is a thin slice of semiconductor used to create complicated circuits and other devices. The key to electronic devices is always the chip that runs it, and the chip is made from a wafer.
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