coefficient of thermal expansion

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coefficient of thermal expansion

[¦kō·ə′fish·ənt əv ′thər·məl ik′span·shən]

coefficient of expansion

The change in dimension of a material per unit of dimension per degree change in temperature.
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Having substituted the coefficients of expansion of functions [Q.
By allowing OEMs to use very high thermal conductivity materials and by tolerating components with mismatched coefficients of expansion (CTE), this revolutionary packaging technology supports a wider band of power levels and frequencies while maintaining the same mechanical stability and moisture resistance as legacy ceramic packaging.
Similar the coefficients of expansion in x and y directions, due to humidity, if the fibres are disposed at an angle [theta] with the x-axis direction, are.
The bimetallic structure of high-conductivity rapid tooling raises questions about bonding, thermal stresses, differential coefficients of expansion and contraction, and potential delamination--concerns that may inhibit some molders from giving RT a try.
This property provides manufacturers a direct method of attaching materials of different coefficients of expansion for use in a range of electrical, structural, and thermal applications throughout industry.
And the different coefficients of expansion between the paint film and thermoplastics can lead to delamination from the heat cycling that takes place during the molding cycle.
They have different effective coefficients of expansion.
The main problem with directly installing a silicon device on a standard fiberglass-type board (the most common known as FR4) is that the integrated component and the board have very different thermal coefficients of expansion.

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