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Semiconductors

Any solid material with electrical conductivity due to electron flow (as opposed to ionic conductivity) of a magnitude between that of a conductor and that of an insulator.

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Semiconductors > Test equipment

qualified products list (QPL)

Semiconductors; Test equipment

A listing of manufacturers qualified by test and performance verification to produce items listed in military (MIL) specifications.

quadrature phase-shift keying (QPSK)

Semiconductors; Test equipment

A method of modulating digital signals using four phase states to code two digital bits per phase shift.

quarter-size small outline package (QSOP)

Semiconductors; Test equipment

An SO style IC package that has leads on a 25 mil pitch. The name derives from the fact that the package is approximately ½ the length and ½ the width of a standard SOIC, and thus ...

resistance (R)

Semiconductors; Test equipment

Symbolized "R" and measured in ohms. Opposition to current flow and dissipation of energy in the form of heat.

return-to-one

Semiconductors; Test equipment

(R1) - In effect, the inverse of RZ. Unlike the other formats in this list, R1 assumes the cycle begins with a “1”, then switches to a “0” when the bit is valid, then switches ...

random access memory (RAM)

Semiconductors; Test equipment

A type of computer memory that can be accessed randomly; that is, any byte of memory can be accessed without touching the preceding bytes. RAM is the most common type of memory ...

reliability block diagram (RBD)

Semiconductors; Test equipment

A diagram the represents how the components (represented by "blocks") are arranged and related reliability-wise in a larger system. This is often, but not necessarily, the same as ...