Linear integrated circuits and applications
Dry etching
In dry etching, chemical reaction occurs between the material on the wafer and the gases. In this method,…
August 11, 2021 · Prabhu TLAuthor: Prabhu TL
Prabhu TL is a SenseCentral contributor covering digital products, entrepreneurship, and scalable online business systems. He focuses on turning ideas into repeatable processes—validation, positioning, marketing, and execution. His writing is known for simple frameworks, clear checklists, and real-world examples. When he’s not writing, he’s usually building new digital assets and experimenting with growth channels.
Linear integrated circuits and applications
Wet Etching
We saw that during deposition, it is not possible to deposit a material only in the places that…
August 11, 2021 · Prabhu TLLinear integrated circuits and applications
Diffusion- production issues
Dopant redistribution: The doped silicon is oxidized in some places, as part of the process sequence. The dopants which…
August 11, 2021 · Prabhu TLLinear integrated circuits and applications
Limited source diffusion
A plot of the concentration profile (normalized with respect to Cs) , at various times, is given here.…
August 11, 2021 · Prabhu TL
Linear integrated circuits and applications
Physical vapor deposition and chemical deposition
Collimated and Ionized Metal Plasma (IMP): There are some more advanced techniques in the PVD. One is called collimated…
August 11, 2021 · Prabhu TL
Linear integrated circuits and applications
Deposition Techniques
In this chapter we will see various deposition techniques that are used in microelectronic fabrication. If a material…
August 11, 2021 · Prabhu TL
Linear integrated circuits and applications
OXIDATION
In semiconductor manufacturing the term “oxidation” is used to refer the conversion of silicon to silicon dioxide. This…
August 11, 2021 · Prabhu TL
Linear integrated circuits and applications
Ion Implanatation – non idealities
Why are the neutral atoms removed from the beam just before deposition? The total quantity of impurities added…
August 11, 2021 · Prabhu TL
Linear integrated circuits and applications
Ion Implanatation
We saw that material can be deposited on the silicon wafer by various techniques such as PVD, CVD etc. The…
August 11, 2021 · Prabhu TL
Linear integrated circuits and applications
Diffusion basics & constant source diffusion
In the previous chapter, we saw that the silicon should be changed to “N” type or “P” type…
August 11, 2021 · Prabhu TL