Electronic module including a device for dissipating heat generated by a semiconductor unit situated in a plastic housing and method for manufacturing an electronic module
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[0049]In contrast to the first specific embodiment of the present invention, the essential difference of the second specific embodiment is that electrically conductive plate system 16 is in two parts. First plate system 23 of electrically conductive plate system 16 is situated adjacent to plug area 19 and is at least partially extrusion coated using plastic housing 12. First plate system 23 extends from plug area 19 at its first end on the outer side of plastic housing 12 up to terminals 20 of semiconductor unit 14 at its second end.
[0050]Second plate system 24 is planar and is at least partially extrusion coated using plastic housing 12. Second plate system 24 is situated completely in wall 12 of the plastic housing. Second plate system 24 of electrically conductive plate system 16 is released on an inner side of plastic housing 12 at predetermined thermal connection areas 25 for the thermal connection of electrically conductive plate system 16 to semiconductor unit 14.
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[0051]In the present second specific embodiment of the present invention, electrically conductive plate system 16 has three thermal connection areas 25. Alternatively, electrically conductive plate system 16 may also have another suitable number of connection areas 25. Heat coupler 18, via which electrically conductive plate system 16 is connected to semiconductor unit 14, is provided at particular thermal connection areas 25. Heat coupler 18 is preferably formed by a heat conducting gel. Alternatively, heat coupler 18 may also be formed by a heat pad or other suitable heat couplers.
[0052]FIG. 3a shows a schematic view of the electronic module according to the present invention including the device for heat dissipation of heat generated by the semiconductor unit situated in the plastic housing, according to a third specific embodiment of the present invention.
Example
[0053]According to the third specific embodiment of the present invention, electrically conductive plate system 16 has a plurality of planar electrically conductive plate elements 16a, 16b, 16c, 16d, 16e, 16f, 16g, 16h, a first part 21 of the plurality of electrically conductive plate elements 16a, 16b, 16c, 16d, 16e, 16f, 16g, 16h supplying semiconductor unit 14 with electrical power and a second part 22 of the plurality of electrically conductive plate elements 16a, 16b, 16c, 16d, 16e, 16f, 16g, 16h supplying semiconductor unit 14 with electrical power and thus dissipating the heat generated by semiconductor unit 14 to plastic housing 12.
[0054]Second part 22 of the plurality of electrically conductive plate elements 16a, 16b, 16c, 16d, 16e, 16f, 16g, 16h has a larger area in comparison to an area of the plurality of electrically conductive plate elements 16a, 16b, 16c, 16d, 16e, 16f, 16g, 16h of the first part. Second part 22 of the plurality of electrically conductive plate elements
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