Vanishing Transistor

A detailed Summary of Vanishing Transistor

The article "The Amazing Vanishing Transistor Act" found in the IEEE Spectrum discusses some of the new technologies that can be implemented for the transistor to increase its performance. Reducing its size can make the channel distance decrease causing the charge carries to have a shorter distance to travel. However, when reducing the size of the channel the gate has a harder time turning the channel off due to the lower threshold voltage that allows the carries to flow without a bias voltage.

The first technique discussed to improve the transistor is to strain the silicon by replacing some silicon atoms with germanium atoms. This causes the distance between atoms to increase due to the germanium's larger size. The size change in the lattice changes the energy band structure along with reducing electron and hole collisions and decreasing their effec

When the transistor continues to shrink it's difficult to maintain a strong connection between the channel and gate with the current polysilicon gates. The highly doped polysilicon acts nearly as a metal due to the high concentration of carriers. However, it creates a depletion region of approx 4-5 angstroms, which puts a constraint on how small the transistor can go, based on that type of gate. It's proposed that metal gates will be helpful in removing this depletion region. The alloy ruthenium-tantalum was proposed as a possible gate material since the work function can be changed by switching the mix of the alloy to obtain the desired threshold voltage.

tive masses therefore increasing mobility. When the mobility increases, it allows for carriers to be more quickly accelerated by an electric field. This method isn't currently in production since

Some common words found in the essay are:
IEEE Spectrum, Transistor Act, gate insulation, depletion region, technologies implemented, , reducing size channel, gate leakage, size channel, threshold voltage, reducing size, hafnium dioxide, channel gate, leakage current,

Approximate Word count = 578
Approximate Pages = 2 (250 words per page double spaced)

Category: Science

join now Save Paper

Saved Paper

Save your papers so you can locate them quickly!

Newest Essays

Testimonials

"Thank You So Much!!! You have saved me once again!!!"
Jack M.
"With so many papers to chose from, I was able to get ideas to help me with all of my classes. Thank You!"
Brian P.
"I've used this site for the last 3 years to help me come up with ideas for my papers."
Sara J.
"I use this site every week to help me write my own papers!"
Rachel W.
"I love this site!!!"
Marie N.