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Karteikarten von That Yeti Dog Person, aktualisiert more than 1 year ago
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| Frage | Antworten |
| _____ is the field of technology the deals with the control of electron flow. | Electronics |
| Electronic _____ are devices that are used to control electron flow. | components |
| Electronic components are grouped together to for electronic _____. | circuits |
| A _____ is a type of semiconductor that's often used in circuits as a rectifier. | diode |
| A _____ changes AC current to DC current. | rectifier |
| A _____ is a material or device that conducts current flow "part-time". That is, sometimes this device acts like a conductor, and sometimes an insulator. | semiconductor |
| The two main types of semiconductors are _____ and _____. | diodes, transistors |
| The most important semiconductor materials used are the elements ____(Ge), ____(Si), and ____(Se), and the compound ____(GaAs). | germanium, silicon, selenium, gallium arsenide |
| The _____ atom is the simplest atom known. It has 1 proton and 1 electron. | hydrogen |
| Atoms that have 8 electrons in their outer shell are called ____ atoms. | inert |
| Examples of inert atoms are argon, helium, neon, krypton, and xenon. These elements are sometimes called ____ gases or ____ gases. Atoms of these elements are very stable and don't combine easily with other atoms. | noble, inert |
| The sharing of electrons between atoms is called __________. | covalent bonding |
| At room temp., a few electrons will always break from their bonds and move for a short time around a semiconductor material. This random motion of electrons is called _____ current, and it can be seen in all semi.c. materials. | intrinsic |
| To make a semi.c. that has certain desired properties, certain atoms of other substances are added to the latticework structure of a crystal as it grows. These added atoms are impurities called _____. | dopants |
| The process of adding dopants to a semiconductor material is called _____. | doping |
| If the dopant added to a material has 5 electrons in its outer shell, it's called a ____. If the dopant has 3 electrons in its outer shell, it's called an _____. | donor, acceptor |
| When donor atoms are added to a pure material, a semiconductor called an _____ material is produced. | N-type |
| When acceptor atoms are added to a pure material, a semiconductor called _____ material is produced. | P-type |
| A _____ is the absence of an electron in an atom. | hole |
| N-type material has excess _____, and P-type material has excess _____. | electrons, holes |
| In N-type semi.c. materials, electrons dominate current flow. So the electrons are called _____-charge carriers. | majority (opposite for P-type) |
| Any holes that appear in an N-type semi.c. material are called _____-charge carriers. | minority (opposite for P-type) |
| The direction of electron flow in a/an _____ material is from negative to positive. | P-type |
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