Mould design of a cap of CMOS chip
Hogeschool Utrecht, 2005
Online
Hochschulschrift
Geen samenvatting beschikbaar l .lIn troduction of CMOS plate The CMOS (C~mplernentar~Me tal Oxide Semiconductor) is an on-board semiconductor chip, which requires very low power generated fromvarious types of CMOS batteries. This chip is used to store important system informat ion and configuration settings while the computer is off and on. CMOS semiconductors use both NMOS (negative polarity) and PMOS (positive polarity) circuits. Since only one of the circuit types is on at any given time, the chips require less power than chips using just one type of transistor. This makes them particularly attractive for use in battery-powered devices, such as portable computers. Personal computers als0 contain a smal1 amount of battery-powered CMOS memory to hold the date, time, a.nd system setup parameters. 1.2 Problem description The size of the CMOS chip, used in this project, is about IOmrn* 5mm*2m. The CMOS is a very sensitive and precise electronic device. The complex work environment, such as high temperature, dust and external impact, has a high influence in the performance of the CMOS. A cap, assembled outside the CMOS, is used to prevent the dust, keep cool and buffer the external impact and wear. At the Same time, cost should be considered in design process.
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Mould design of a cap of CMOS chip
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Autor/in / Beteiligte Person: | Gong, Xiaoping, Student |
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Veröffentlichung: | Hogeschool Utrecht, 2005 |
Medientyp: | Hochschulschrift |
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