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Substrate is used in a converting process such as printing or coating to generally describe the base material onto which, e.g. images, will be printed. Base materials may include:

• plastic films or foils,
• release liner
• textiles,
• plastic containers
• any variety of paper (lightweight, heavyweight, coated, uncoated, paperboard, cardboard, etc.), or
• parchment.

Electronics

Printing processes such as silk-screening and photolithography are used in electronics to produce printed circuit boards and integrated circuits. Some common substrates used are; ^[1]

• Glass-reinforced epoxy, eg FR-4 board
• Ceramic- PTFE laminate, eg 6010 board
• Alumina ceramic
• Silicon
• Gallium arsenide
• Sapphire
• Quartz

References

Bibliography

• Rogers, John WM; Plett, Calvin, Radio Frequency Integrated Circuit Design, Artech House, 2010 ISBN  1-60783-980-6.