Nanotechnology: A Maker's Course Week 1

What is the best resolution of a microscope with a numerical aperture of 0.5 using energy with a wavelength of 2.8 nm?

3.36 nm

What is the best resolution of a microscope with a numerical aperture of 1.2 using energy with a wavelength of 650 nm?

325 nm

Typical molecules found in air include _____ (check all that apply)

Carbon dioxide, oxygen, nitrogen

Due to safety concerns associated with strong acids and bases, chemical wet etching is typically performed in a _____.

Chemical fume hood

As the velocity of an electron increases the wavelength of the electron will ________.

Decrease

Which of the following are not typically conductive? Select all that apply.

Dielectrics/Ceramics, Polymers, Biologicals

What can occur when an electron beam interacts with a sample? (Select all that apply)

Electrons in the beam will become trapped in the sample; Electrins in the beam will scatter in the sample and exit the sample; X-rays will be produced; The beam will pass throuth the ample; Electrons in the beam will knock electrons out of the sample

Particles in the open air do not cause defects in thin film deposition.

False

Nano-measurement tools typically involve bombarding a sample with particles such as:

Ions, photons, electrons

As the wavelength of an electron increases, the electron travels _________.

Slower

Which of the following are methods used to deposit thin films? (Select all that apply)

Sputter Deposition, Vacuume Evaporation, Chemical Vapor Deposition

Eyewear, either glasses or safety goggles, must be worn while in the cleanroom.

True

Which of the following are found in the electromagnetic spectrum? (Select all that apply)

Visible light, UV light

Match the vacuum pump categories to their general function: a. Positive Displacement Pumps _____ b. Momentum Transfer Pumps _____ c. Entrapment Pumps _____ 1. trap air molecules inside the pump, effectively removing the molecules from the chamber 2. bounce or deflect air molecules out of the chamber 3. push air out of the chamber

a-3, b-2, c-1

When gowning before entering the cleanroom, you:

start at the top (head) and work down to the bottom (feet)