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US5629562A Expired / Lapsed US ⏱️ 0.0 years remaining

Conductive contact structure for two conductors

Assignee: Fuji Electric Co Ltd
•
Filing: 1996-05-17
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Granted: 1997-05-13
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Expires: 2016-05-17
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Abstract

Abstract In a conductive contact structure for two conductors, a lower electrode also serves as a cooling element, and two grooves are formed in the lower surface of an electrode. A grease-like insulating material high in thermal conductivity is applied to the lower surface of the electrode except the middle region thereof which is defined by the two grooves; that is, it is applied only to the right and left regions of the lower surface which are located on both sides of the middle region. A pressurizing force is applied through an upper conductor to an electrode whose lower surface is fixed through an insulating board to the upper surface of the electrode. The middle region of the lower surface of the electrode is in contact with the surface of the lower conductor, and the right and left regions are elastically deformed in such a manner that they are slightly raised above the surface of the lower conductor, thus forming spaces therebetween. The spaces thus formed are filled with the insulating material. Thermal conduction; i.e., heat radiation is effected through the right and left regions to which the insulating material have been applied, and electrical conduction is ensured through the middle region to which the insulating material is not applied.

Inventors

  • 👤 Toshihiro Nomura
  • 👤 Masaaki Hisamoto

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 01:46
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/60; H10W40/70; H10W70/00; H10W70/60; H10W70/67; H10W70/68; H10W72/00; H10W72/50; H10W72/541; H10W72/5445

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 146 words
A conductive contact structure for two conductors, comprising: a first conductor having at least one planar portion; a second conductor having at least one planar portion, said planar portions of said first and second conductors being conductively brought into contact with each other under pressure; and a grease-like insulating material which is high in thermal conductivity and applied to one of said planar portions of said first and second conductors; wherein one of said planar portions of said first and said second conductors is divided into a pair of first planar regions and a second planar region by at least two grooves, the second planar region being placed between the pair of first planar regions and being uninterrupted by grooves, said grease-like insulating material being applied only to said pair of first planar regions and no grease-like insulating material being applied to said second planar region.
Claim 2
Dependent Claim 146 words
A conductive contact structure for two conductors, comprising: a first conductor having at least one planar portion; a second conductor having at least one planar portion, said planar portions of said first and second conductors being conductively brought into contact with each other under pressure; and a grease-like insulating material which is high in thermal conductivity and applied to one of said planar portions of said first and second conductors; wherein one of said planar portions of said first and said second conductors is divided into a pair of first planar regions and a second planar region by at least two grooves, the second planar region being placed between the pair of first planar regions and being uninterrupted by grooves, said grease-like insulating material being applied only to said pair of first planar regions and no grease-like insulating material being applied to said second planar region.
Claim 3
Dependent Claim 38 words
A conductive contact structure as claimed in claim 1, wherein flat type semiconductor elements are conductively secured to a first side of said first conductor, and said groove is defined in a second side of said first conductor.
Claim 4
Dependent Claim 26 words
A conductive contact structure as claimed in claim 1, wherein said second planar region corresponds to the active areas of a pressurizing force for pressure contact.
Claim 5
Dependent Claim 34 words
A conductive contact structure as claimed in claim 1, wherein each of said grooves is shaped to prevent said grease-like insulating material from entering from said first planar region to said second planar region.
Claim 6
Dependent Claim 20 words
A conductive contact structure as claimed in claim 1, wherein said grease-like insulating material comprises a heat radiating silicon grease.
Claim 7
Dependent Claim 21 words
A conductive contact structure as claimed in claim 1, wherein said first conductor contains water channels which act as cooling elements.
Claim 8
Dependent Claim 26 words
A conductive contact structure as claimed in claim 2, wherein said second planar region corresponds to the active areas of a pressurizing force for pressure contact.
Claim 9
Dependent Claim 23 words
A conductive contact structure as claimed in claim 4, wherein said groove comprises a plurality of grooves formed in parallel with each other.
Claim 10
Dependent Claim 16 words
A conductive contact structure as claimed in claim 4, wherein each of said grooves is U-shaped.
Claim 11
Dependent Claim 16 words
A conductive contact structure as claimed in claim 4, wherein each of said groove is V-shaped.
Claim 12
Dependent Claim 16 words
A conductive contact structure as claimed in claim 4, wherein each of said groove is semicircular.

References Cited (Backward Citations)

US4092697A Cited
US4878108A Cited
US5014777A Cited
JPH02230670A Cited
JPH02306702A Cited
US5028989A Cited
US5345107A Cited
GB2249665A Cited
EP0577099A2 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2000-05-12 2000-11-11 2001-05-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2004-05-12 2004-11-11 2005-05-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2008-05-12 2008-11-11 2009-05-13 $7700.00 Window Closed / Lapsed

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