Semiconductor Diagrams

A gallery of the diagrams used in our explanations: device physics, devices, fabrication processes and design. Each one links to the practice questions where it appears.

Energy band diagram of an n-type semiconductor
Energy band diagram of an n-type semiconductorAppears in: Where is the Fermi level located in an n-type s…
Depletion layer of a PN junction under reverse bias
Depletion layer of a PN junction under reverse biasAppears in: What happens to the width of the depletion laye…
NPN transistor in the active region
NPN transistor in the active regionAppears in: Which bias condition is correct when an NPN tra…
CMOS inverter
CMOS inverterAppears in: Why is the static (steady-state) power consumpt…
MOSFET drain current versus drain voltage
MOSFET drain current versus drain voltageAppears in: When a long-channel MOSFET operates in the satu…
Cross-section of an n-channel MOSFET (on state)
Cross-section of an n-channel MOSFET (on state)Appears in: What is the condition for an enhancement-mode n…
Inverting amplifier with an op-amp
Inverting amplifier with an op-ampAppears in: In an inverting amplifier using an ideal op-amp…
Example of aliasing
Example of aliasingAppears in: If a 10 kHz sine wave is sampled at 12 kHz with…
DRAM memory cell (1T1C)
DRAM memory cell (1T1C)Appears in: Which correctly describes the structure of a ty…
NAND flash cell string
NAND flash cell stringAppears in: Compared with NOR flash, which is a characteris…
Two states of a magnetic tunnel junction (MTJ)
Two states of a magnetic tunnel junction (MTJ)Appears in: In an MTJ, how do the resistances compare when …
Memory hierarchy of a computer
Memory hierarchy of a computerAppears in: In a typical computer, which lists the memory h…
Bayer color filter array
Bayer color filter arrayAppears in: In a Bayer color filter array, which color appe… / From the output of a sensor with color filters …
Cross-sections of a planar transistor and a FinFET
Cross-sections of a planar transistor and a FinFETAppears in: Which correctly describes the structure of a Fi…
Pulling a single crystal by the Czochralski (CZ) method
Pulling a single crystal by the Czochralski (CZ) methodAppears in: Which method is most widely used to produce sin…
Oxide growth by thermal oxidation
Oxide growth by thermal oxidationAppears in: When an SiO2 film of thickness x is formed by t…
Depth profile of implanted dopants
Depth profile of implanted dopantsAppears in: Which correctly pairs the distribution that app…
One ALD (atomic layer deposition) cycle
One ALD (atomic layer deposition) cycleAppears in: Which is a characteristic of ALD (atomic layer …
Lithography and etching steps (positive resist)
Lithography and etching steps (positive resist)Appears in: Which is the correct general order of lithograp…
Cross-sections of isotropic and anisotropic etching
Cross-sections of isotropic and anisotropic etchingAppears in: Which correctly describes anisotropic etching?
Forming copper wiring by damascene
Forming copper wiring by damasceneAppears in: Which correctly describes the damascene process…
Wire bonding and flip chip
Wire bonding and flip chipAppears in: Which correctly describes flip-chip mounting?
Control chart (Shewhart chart)
Control chart (Shewhart chart)Appears in: In control charts (Shewhart control charts) use…
Chip area and yield (same defect positions)
Chip area and yield (same defect positions)Appears in: With the same defect density, what generally ha…
Bathtub curve (failure rate over time)
Bathtub curve (failure rate over time)Appears in: Which correctly lists the three periods that ma…