Critical Thinking Worksheet #3

Critical Thinking Worksheet #3 - Stephanie Drybala GNSCI...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Stephanie Drybala October 25, 2007 GNSCI Critical Thinking #3 Essay A semiconductor is a solid. It has electrical conductivity that is placed between a conductor and an insulator. It is something that can be controlled, either eternally or dynamically. A semiconductor is like an insulator. Semiconductors are very important in technology. Many electronic components are made from semiconductor materials. The most common of these is silicone. Semiconductor device fabrication is the process that is used to create chips that are present in many electronic and electrical devices. The entire processing time for creating these chips takes about six to eight weeks. The employees who work in a semiconductor production facility are required to wear cleanroom suits. This will prevent the chips that are making from getting ruined by human contamination. Intel is the world’s largest producer of semiconductor chips followed by many other well known companies such as Toshiba and Texas Instruments. These devices were originally only made in Texas and California and are not created all over the world. In 2006, there were about 5,000 semiconductor and electronic components manufacturers in the United States. These manufacturers accounted for $165 billion dollars. Semiconductors are used in many different devices. Some examples are field effect transistors, integrated circuits, focal plane arrays, and infa-red detectors. Silicon is the most common material that is used in these devices. However, there are many other compound semiconductors. The most common of these compound semiconductors are
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
gallium arsenide, indium phosphide, mercury cadmium telluride, cadmium sulphide, cadmium telluride. The process of preparing a semiconductor chip or wafer can be summed up in three steps. First there is the wafer thinning or backlapping. This is done to reduce the fabricated semiconductor wafer’s thermal conductivity. It also speeds up signal transmission across the device. The second step is chemo-mechanical polishing. The third stage is chemical polishing. This prepares the semiconductor wafer surface for epitaxial growth or to reclaim wafers which have a defective epitaxial layer. A superconductor is an element, an inner-metallic alloy, or a compound that will
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 07/31/2008 for the course GNSCI 101 taught by Professor Solis during the Fall '07 term at MS Mary.

Page1 / 7

Critical Thinking Worksheet #3 - Stephanie Drybala GNSCI...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online