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US 4,366,497 AGranted
Cooling capsule for disc-shaped semiconductor components
AssigneeSiemens Aktiengesellschaft
InventorsHarry Block, Rudolf Wiesenbacher
Life of this patent
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Abstract
A cooling capsule for disc-type thyristors consists of two half-shells containing spherical depressions. A lens-shaped core, arranged between the two half-shells, guides the coolant, so that only a small pressure drop takes place. In addition, large-area and uniform heat removal at both end faces of the cooling capsules is obtained. The cooling capsule can be produced and machined efficiently, since screw machine parts are used exclusively.
Claims9
A cooling capsule for disc-shaped semiconductor components comprising:
- two heat conductive cover dishes, each cover dish having a substantially flat outer face for making generally conforming, thermally conductive connection to at least on semiconductor component, each dish having a side wall and containing a single recess, the side wall of one cover dish joined to the side wall of the other cover dish in a liquid-tight manner to form a side wall of the capsule, joining the recesses to provide a cavity in the capsule;
- an inlet opening and an outlet opening in the side wall of the capsule to permit through flow of coolant;
- and
- a solid core positioned in the cavity so as to divide each inlet and each outlet opening in the side wall into separate inlet and outlet openings associated with each recess,
- the maximum cross-sectional area of the cavity, taken on a connecting line between the inlet and the outlet openings, being substantially equal to the maximum cross-sectional area of the core.
2 more elements
Dependencies are inferred from the claim text.