■Thermal Resistance of each package语文思维导图怎么画>好少年
There are typical measured value bad on JEDEC with no wind. Each value is dependent on a chip, a layout of a leadframe, a board, and so forth.
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吾妻软绵1) Thermal resistance values (θja,ψjt) are measured with the 2-layer board having 100mm2 copper foil, which is bad on JEDEC.
2) Thermal resistance values (θja,ψjt) are measured with the 4-layer board having thermal via holes, which is also bad on JEDEC.
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