Patent Number: 6,305,464

Title: Method for producing a cooling element, and a cooling element

Abstract: A method for manufacturing cooling elements for power electronic components and other cooling devices for electronic appliances, wherein molten metal is fed into a closed mould including a core part and a mould part. The metal is allowed to become solid whereafter the finished casting is removed from the mould. An insert package is assembled of lamellas made from a material which at least essentially corresponds to the casting material by pressing together several lamellas arranged next to one another such that an air slot remains between the lamellas arrranged next to one another such that an air slot remains between the lamellas. This insert package is machined such that it fits into a recess in the core part and the insert and the insert package is placed in the recess in the core part before closing the mould, whereby the package is fastened to the casting once the mould has been filled.

Inventors: Smalen; Matti (Klaukkala, FI), Miettinen; Erkki (Helsinki, FI)

Assignee: ABB Industry Oy

International Classification: B22D 19/00 (20060101); H01L 21/02 (20060101); H01L 21/48 (20060101); H05K 007/20 ()

Expiration Date: 10/23/2018