Production of Semiconductors (Leaving Cert Engineering): Flashcards
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Practise the cards
15 cards from this deck
Semiconductor production creates
Semiconductor production creates
Electronic components with billions of transistors & parts
Silicon wafer definition
Silicon wafer definition
Thin, flat disc foundation for building circuits
Ingot in semiconductor production
Ingot in semiconductor production
Large cylindrical block of pure silicon
Photolithography definition
Photolithography definition
Transfers circuit designs onto wafer using light & masks
Photomask purpose
Photomask purpose
Stencil for circuit design pattern transfer to wafer
Etching purpose
Etching purpose
Selectively removes unwanted material from wafer surface
Plasma vs wet etching precision
Plasma vs wet etching precision
Plasma: nm features; Wet: struggles nm
Thin-film process purpose
Thin-film process purpose
Deposits materials at atomic/molecular level for electrical properties
Three CVD types
Three CVD types
Thermal, Plasma-enhanced, Optical CVD
Ion implantation purpose
Ion implantation purpose
Introduces atoms to give desired electrical properties
Metal interconnect process creates
Metal interconnect process creates
Electrical pathways connecting circuit elements
Yield in semiconductor production
Yield in semiconductor production
Percentage of functional chips produced from each wafer
EDS (Electrical Die Sorting) purpose
EDS (Electrical Die Sorting) purpose
Tests each chip electrically before packaging
3 packaging functions
3 packaging functions
Electrical connections, physical protection, thermal mgmt
EUV lithography
EUV lithography
Extreme Ultraviolet lithography for higher circuit density
