Term
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Definition
| A measure of the manufacturing complexity is the number of lithography or printing operations |
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Term
| What's happening to feature size over time? |
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Definition
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Term
| Average human hair is how big? |
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Definition
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Term
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Definition
| unique class of materials whose electrical conductivity can be controlled over a wide range by the introduction of dopants |
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Term
| list the semiconductor properties |
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Definition
-composition
-structure
-purity
-conductivity |
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Term
| what is semiconductor conductivity a function of? |
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Definition
| the number of electrons and holes in the semiconductor |
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Term
| What are a couple of common dopants in silicon? |
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Definition
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Term
| What type of dopant is Arsenic? |
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Definition
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Term
| What type of dopant is boron? |
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Definition
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Term
| what type of conductor is silicon naturally? |
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Definition
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Term
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Definition
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Term
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Definition
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Term
| What are doped semiconductors referred to as? |
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Definition
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Term
| What is mobility defined as in relation to semiconductor doping? |
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Definition
| ease of carrier motion in a crystal |
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Term
| What is carrier mobility a function of?(3) |
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Definition
-Termperature
-doping concentration
-electric field |
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Term
| What are the three structures of Si? |
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Definition
-amorphous
-polychristalline
-crystalline |
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Term
| The conduction band coincides with which type of electron? |
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Definition
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Term
| the valence band coincides with which type of electron? |
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Definition
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Term
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Definition
| energy needed to release a bound electron |
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Term
| What does P doping produce? |
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Definition
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Term
| What does N doping produce? |
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Definition
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Term
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Definition
| The probability of an electron occupying any particular energy level E = .5 |
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Term
| What does the fermi level do in N type doping? |
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Definition
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Term
| What does the band gap do when the temp increases? |
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Definition
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Term
| What's an example of an active device? |
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Definition
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Term
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Definition
| when N and P type semiconductors are contacted together |
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Term
| What happens when a reverse bias is applied to the diode? |
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Definition
| the depletion region widens |
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Term
| What happens when a forward bias is applied to a diode? |
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Definition
| the depletion region shrinks and the current increases |
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Term
| What is the relationship between applied voltage and current in a diode? |
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Definition
| It's an exponential relationship V->I^2 |
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Term
| What is the turn-on voltage controlled by? |
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Definition
| The dopant concentrations in either side of the junction |
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Term
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Definition
| Micro Electrical Mechanical Systems |
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Term
| What's an example of a MEMS |
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Definition
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Term
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Definition
| converts energy from one form to another |
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Term
| What are three examples of transducers? |
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Definition
-microphone
-speaker
-flashlight |
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Term
| What are the three fabrication techniques of MEMS? |
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Definition
-surface micromachining
-bulk micromachining
-micromolding |
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Term
| What helps pattern and shape mems? |
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Definition
-photolithography
-chemical etching |
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