Transcription of AN900 APPLICATION NOTE - STMicroelectronics
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AN900 APPLICATION NOTE - STMicroelectronics
AN900 /11001/15AN900 APPLICATION NOTEINTRODUCTION TO SEMICONDUCTOR TECHNOLOGYby Microcontroller Division ApplicationsINTRODUCTIONAn integrated circuit is a small but sophisticated device implementing several electronic func-tions. It is made up of two major parts: a tiny and very fragile silicon chip (die) and a packagewhich is intended to protect the internal silicon chip and to provide users with a practical wayof handling the component. This note describes the various front-end and back-end manu-facturing processes and takes the transistor as an example, because it uses the MOS tech-nology. Actually, this technology is used for the majority of the ICs manufactured at TO SEMICONDUCTOR TECHNOLOGY1 THE FABRICATION OF A SEMICONDUCTOR DEVICEThe manufacturing phase of an integrated circuit can be divided into two steps.
The resolution limit (minimal line size inside the circuit) of current technology is 0.35 microns. Achieving such results requires very sophisticated processes as well as superior quality levels. Backlap is the final step of wafer fabrication. The wafer thickness is reduced from 650 mi-
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