EP0529503A1
Expired / Lapsed
EP
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Flexible attachment flip-chip assembly
Assignee: HP Inc
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Filing: 1992-08-19
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Granted: —
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Expires: 2012-08-19
Abstract
Abstract A multi-chip module (610) with improved electrical connections between a substrate (612) and an integrated circuit chip (620). A plurality of cavities (710) are formed in an upper surface of the substrate (612). An electrical conductor (720) is cantilevered over each cavity (710). Each conductor corresponds with a connection pad (632) on the chip (620). A flexible membrane (820) supports the electrical conductor (720) through a post (830) to keep the conductor in electrical contact with the connection pad (632). A solder bump (730) establishes an electrical connection between the electrical conductor (720) and the connection pad (632).
Inventors
- 👤 Dirk J. Bartelink
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 14:24
CPC Classifications
H; H10; H10W; H10W70/00; H10W70/60; H10W70/67; H10W70/68; H10W72/00; H10W72/071; H10W72/072; H10W72/07231; H10W72/07236; H10W72/20; H10W72/251; H10W72/252
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
76 words
An integrated circuit assembly (610) comprising: a substrate (612) having a cavity (710) formed in an upper surface thereof; an electrical conductor (720) cantilevered over the cavity (710); a chip (620) having a connection pad (632); means (730) for establishing an electrical connection between the electrical conductor (720) and the connection pad (632); and support means (820) for maintaining the electrical conductor (720) in electrical contact with the connection pad (632) through the interconnection means (730).
Claim 2
Dependent Claim
26 words
An assembly as in claim 1 and further comprising a post (830) that supports the electrical conductor (720) in spaced-apart relation to the support means (820).
Claim 3
Dependent Claim
17 words
An assembly as in claim 1 or 2 wherein the support means (820) comprises a flexible membrane.
Claim 4
Dependent Claim
16 words
An assembly as in claim 3 wherein the flexible membrane has a plurality of perforations (1301).
Claim 5
Dependent Claim
16 words
An assembly as in claim 4 wherein the perforations define a plurality of concentric membrane rings.
Claim 6
Dependent Claim
20 words
An assembly as in any preceding claim wherein the means (730) for establishing an electrical connection comprises a solder bump.
Claim 7
Dependent Claim
27 words
An assembly as in any of claims 1 through 5 wherein the means (730) for establishing an electrical connection comprises an extremity of the electrical conductor (720).
References Cited (Backward Citations)
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