Electronic module, method
AssigneeRobert Bosch GmbH
InventorsBernd Rometsch, Georg Hejtmann, Martin Rittner, Stefan Kaessner
Life of this patent
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Abstract
The invention relates to an electronic module (6), in particular a power module, having at least one electrical/electronic component (7) and having a housing (8), which at least partly extends around the component (7), wherein the housing (8) is made of cement composite (1), and wherein the cement composite (1) has at least one particulate filler (2). According to the invention, the particulate filler (2) has aluminum nitride particles (3), which each have a coating only of aluminum oxide (4).
Claims11
An electronic module (6) having at least one electrical/electronic component (7) and having a housing (8) that at least partly surrounds the component (7), wherein the housing (8) is manufactured from cement composite (1), and wherein the cement composite (1) includes cement (18) and at least one particulate filler (2), wherein the particulate filler (2) includes aluminum nitride particles (3) each having a coating solely of alumina (4), and wherein a heat sink (13) in the form of a coolant duct (15) extends through the cement composite (1) such that sections of a longitudinal extent of the coolant duct are surrounded completely by the cement composite (1).
A process for producing an electronic module (6), comprising the following steps:
- providing at least one electrical/electronic component (7),
- providing a cement (18),
- providing aluminum nitride particles (3),
- providing the respective aluminum nitride particles (3) with a coating solely of alumina (4),
- introducing the aluminum nitride particles (3) provided with a coating solely of alumina (4) into the cement (18) for production of a cement composite (1),
- providing a heat sink (13) in the form of a coolant duct (15), and
- at least partly encapsulating the electrical/electronic component (7) and the heat sink (13) with the cement composite (1) to produce a housing (10), the heat sink (13) being encapsulated such that sections of a longitudinal extent of the coolant duct (15) are surrounded completely by the cement composite (1).
Dependencies are inferred from the claim text.