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Application filed by Hon Hai Prec Ind Co LtdfiledCriticalHon Hai Prec Ind Co Ltd
Priority to TW94128483ApriorityCriticalpatent/TWI317802B/en
Publication of TW200708704ApublicationCriticalpatent/TW200708704A/en
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Publication of TWI317802BpublicationCriticalpatent/TWI317802B/en
A heat dispreader includes a hollow chamber with side envelopes and a working fluid filled in the chamber. The side envelopes define a number of hollow cavities filled with designated amount of phase change materials to provide extra heat capacity of the heat dispreader. Taking advantage of the laten heat during phase change, the extra heat capacity of the heat dispreader can remove more heat thus prevent hot spots or high temperature regions and provide effective heat transfer at the same time.