发明名称 Flip-chip electronic device with carrier having heat dissipation elements free of solder mask
摘要 A solution relating to electronic devices of flip-chip type is proposed. Particularly, an electronic device (200,300;400;700;800) of flip-chip type comprises at least one chip carrier (110;805) having a carrier surface (135;835), the carrier comprising one or more contact elements (140s,140p;740s,740p;840s,840p) of electrically conductive material on the carrier surface, at least one integrated circuit chip (105;705) having a chip surface (120;720), the chip comprising one or more terminals (125s,125p;725s,725p) of electrically conductive material on the chip surface each one facing a corresponding contact element, solder material (150;750) soldering each terminal to the corresponding contact element, and restrain means (210s,210p,310;410s1,410sd,410p;790s,790p;890s,890p) around the contact elements for restraining the solder material during a soldering of the terminals to the contact elements, wherein the carrier comprises one or more heat dissipation elements (205s,205p;785s,785p;885s,885p) of thermally conductive material on the carrier surface facing the chip surface displaced from the terminals, the dissipation elements being free of any solder mask.
申请公布号 GB2536383(B) 申请公布日期 2017.02.01
申请号 GB20160010765 申请日期 2014.11.26
申请人 International Business Machines Corporation 发明人 Stefano Oggioni;Thomas J Brunschwiler;Gerd Schlottig
分类号 H01L23/36;H01L25/065 主分类号 H01L23/36
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