摘要:
A packaged semiconductor chip including the chip, and a package element such as a heat sink is made by connecting flexible leads between contacts on the chip and terminals on a dielectric element such as a sheet or plate and moving the sheet or plate away from the chip, and injecting a liquid material to form a compliant layer filling the space between the package element and the dielectric element, and surrounding the leads. The dielectric element and package element extend outwardly beyond the edges of the chip, and physically protect the chip. The assembly may be handled and mounted by conventional surface mounting techniques. The assembly may include additional circuit elements such as capacitors used in conjunction with the chip.
摘要:
A semiconductor chip is provided with a dielectric element having conductive features interconnecting electronic elements within the chip with one another. The conductive features replace internal conductors, and can provide enhanced signal propagation between elements of the chip. The conductive features on the dielectric element are connected to contacts on the chip by deformable conductive elements such as flexible leads so that the dielectric element remains movable with respect to the chip. The dielectric element may have a coefficient of expansion different from that of the chip itself.
摘要:
A microelectronic package comprising a microelectronic element, resilient element including one or more intermediary layers capable of being wetted and assembled with the microelectronic element, and an adhesive is provided. The adhesive contacts at least one of the one or more intermediary layers and the microelectronic element. A resilient element is also provided.
摘要:
A method of making a connection component for a microelectronic element includes providing a sheet comprising an electrically conductive layer, a photoresist layer overlying the conductive layer and a photoimageable dielectric layer disposed under the conductive layer. The method includes lithographically forming at least one opening in the photoresist layer to uncover a portion of the conductive layer, forming a plurality of circuit features from the conductive layer by removing the uncovered portion of the conductive layer, at least some of the circuit features being leads, and lithographically forming at least one aperture in the photoimageable dielectric layer.
摘要:
A packaged semiconductor chip including the chip, and a package element such as a heat sink is made by connecting flexible leads between contacts on the chip and terminals on a dielectric element such as a sheet or plate and moving the sheet or plate away from the chip, and injecting a liquid material to form a compliant layer filling the space between the package element and the dielectric element, and surrounding the leads. The dielectric element and package element extend outwardly beyond the edges of the chip, and physically protect the chip. The assembly may be handled and mounted by conventional surface mounting techniques. The assembly may include additional circuit elements such as capacitors used in conjunction with the chip.
摘要:
A bonding component for electrically connecting a semiconductor chip or wafer to a support substrate includes a dielectric layer having a central region, elongated slots defining the central region, and a peripheral region surrounding the slots. Metallic bonding pads are arranged on the central region, and leads extend from the bonding pads to the edge of the central region and extending partially across the elongated slots. The leads are detached from the peripheral region of the dielectric layer on the side of the slots opposite the central region. The leads are adapted to be deformed during bonding to a semiconductor chip or wafer. To form the bonding component, a dielectric layer is first provided having a central region, slots and a peripheral region. A metallic structure is also provided having bonding pads on the central region, and leads electrically connected to the bonding pads and to a plating bus disposed in the peripheral region. A resist is applied to the metallic structure in zones separating the leads, the metallic structure is plated in regions outside the zones with an etch resistant metal, the resist is removed and the leads are etched so as to form gaps in the metallic structure over the elongated slots.
摘要:
A connector for microelectronic includes a sheet-like body having a plurality of holes, desirably arranged in a regular grid pattern. Each hole is provided with a resilient laminar contact such as a ring of a sheet metal having a plurality of projections extending inwardly over the hole of a first major surface of the body. Terminals on a second surface of the connector body are electrically connected to the contacts. The connector can be attached to a substrate such a multi-layer circuit panel so that the terminals on the connector are electrically connected to the leads within the substrate. Microelectronic elements having bump leads thereon may be engaged with the connector and hence connected to the substrate, by advancing the bump leads into the holes of the connector to engage the bump leads with the contacts. The assembly can be tested, and if found acceptable, the bump leads can be permanently bonded to the contacts.
摘要:
A microelectronic connection component includes a dielectric sheet having an area array of elongated, strip-like leads. Each lead has a terminal end fastened to the sheet and a tip end detachable from the sheet. Each lead extends horizontally parallel to the sheet, from its terminal end to its tip end. The tip ends are attached to a second element, such as another dielectric sheet or a semiconductor wafer. The first and second elements are then moved relative to one another to advance the tip end of each lead vertically away from the dielectric sheet and deform the leads into a bent, vertically extensive configuration. The preferred structures provide semiconductor chip assemblies with a planar area array of contacts on the chip, an array of terminals on the sheet positioned so that each terminal is substantially over the corresponding contact, and an array of metal S-shaped ribbons connected between the terminals and contacts. A compliant dielectric material may be provided between the sheet and chip, substantially surrounding the S-shaped ribbons.
摘要:
An interposer for interconnection between microelectronic circuit panels has contacts at its surfaces. Each contact has a central axis normal to the surface and a peripheral portion adapted to expand radially outwardly from the central axis responsive to a force applied by a pad on the engaged circuit panel. Thus, when the circuit panels are compressed with the interposers, the contacts expand radially and wipe across the pads. The wiping action facilitates bonding of the contacts to the pads, as by conductive bonding material carried on the contacts themselves.
摘要:
An assembly includes a structure, a plurality of terminals and a plurality of compliant pads disposed between said terminals and said structure. The terminals are aligned with at least some of said pads, with the pads providing a standoff between the structure and the terminals. The compliant pads are preferably made of a non-conductive material such as a silicone elastomer.