Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Number of dopant atoms in different technology nodes

Status
Not open for further replies.

Negneg

Newbie level 6
Joined
Apr 15, 2015
Messages
12
Helped
1
Reputation
2
Reaction score
1
Trophy points
3
Activity points
108
Hi,

Does anyone have a link to a reference about the number of atoms in a transistor for different technology nodes (32nm, 22nm, ...)? Or if there is any calculation method? Even something like a graph showing the decreasing trend in the number of atoms with the Moor’s law!

Thanks,
Negar
 

erikl

Super Moderator
Staff member
Joined
Sep 9, 2008
Messages
8,112
Helped
2,685
Reputation
5,350
Reaction score
2,284
Trophy points
1,393
Location
Germany
Activity points
44,153
Search G00GLE. Here are some examples from scientific publications:

From Atom devices based on single dopants in silicon nanostructures:
For that purpose, we investigated devices having a structure as shown in Figure 2a: SOI-FETs with the channel pat- terned by an electron beam lithography technique to have a width of about 50 nm and a length between 20 and 150 nm [see Figure 2b]. Top Si layer has a final thickness of only 10 nm and is doped uniformly with phosphorus to a concentration ND ≅ 1 × 1018 cm-3 (as estimated from secondary ion mass spectrometry of reference samples). A simple estimation would give a number of 10 to approximately 75 dopant atoms in the device channel, depending on the channel dimensions.

From book Nano-Electronic Devices: Semiclassical and Quantum Transport Modeling:
50x10x7nm-channel.png 40x10x30nm-channel.png
 
  • Like
Reactions: Negneg

    Negneg

    points: 2
    Helpful Answer Positive Rating
Status
Not open for further replies.
Toggle Sidebar

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top