tor are chosen to provide a compression thereof suffiELASTOMERIC WIRE TO PAD CONNECTOR cient to drive the conductive traces of the film into
engagement with the pads and with the wires to, in one This invention relates to an electrical connector embodiment, interconnect the pads to the wires with a wherein electrical wires are interconnected to the pla- 5 stable, low-resistance, and disconnectable interconnecnar pads associated with an electrical component. tion. In another embodiment, the film of the connector
Ririfruniiwn Oft Thc Twvcwttom fe made t0 delude 8 ^b portion carrying the traces into
BACKGROUND OF THE INVENTION ^ a reflowable materia] applied t0 the
Manufacturing processes used to make sensor and wires being caused to reflow to solder the wires to the transducer components, particularly solid state compc- 10 traces on the tab of the connector. In another embodinents, dictate component package geometries having ment, it is contemplated that the solderable material arrays of thin, deposited conductive pads defining the may be applied to the traces on the tab of the connector electrical circuits for such components. Interconnection with suitable reflow to the wires, the elastomeric conof such components frequently dictates the use of elec- nection being, in either event, made to the pads intertrical cable having conductive wires of a solid or 15 connected to the component on the lid of the device. In stranded and rounded configuration; occasionally of a still a further embodiment, the conductive traces on the flat, ribbon configuration. Termination of these wires to connector are provided on a pattern complementary to the component pads is typically done through connec- the pattern of the pads, common centers, on one end of tors utilizing special termination techniques between the film, to be positioned on the top of the connector, the wires and the connector, through pressure connec- 20 with the traces being on different centers in a different tions or solder, with a further termination from the pattern on the other end of the film to accommodate connector to the component. The trend toward minia- wires placed on different centers or, in a different patturization allowed by solid state technology has yielded tern within the housing of the connector. In yet a furcomponent, connector packages where the connector is ther embodiment, it is contemplated that the film of the much larger than the component. Additionally, the 25 connector may be made to include a tab that extends small sizes of miniaturized parts, component, connector, well away from the elastomeric core to facilitate differand cable, makes for a manufacture and assembly that is ent positionings of the connector within housings than costly and difficult. that shown.
Accordingly, it is an object of the present invention A-nrrssr 1
to provide an improved wire to pad interconnection. It 30 1IN Ukawiinus
is a further object to provide a wire to pad connector FIG. 1 is a perspective showing the elements of the
that is easy to use, allows a ready separable connection invention assembly in an exploded view,
between components and cable. It is still a further ob- FIG. 2 is a perspective showing the elements shown ject to provide a miniaturized elastomeric connector for in FIG. 1 with the connector installed in a housing, the use in interconnecting components and the conductive 35 lid of the housing uninstailed.
paths thereof to cables and the wires thereof. FIG. 3 is a perspective view showing the elements of
„,„„,,„„ ____ _,^^T^,,^T FIG. 1 and 2 fully assembled.
SUMMARY OF THE INVENTION FIG 4 ^ a eIevationalj ud ^
The invention achieves the foregoing objects by pro- view of the elements of the invention and the relation
viding an interconnection between the flat, planar pads 40 ship of elements shown in FIG. 2.
of a component, such as a sensor or transducer, in the FIG. 5 is a side, elevational and partially sectioned
form of an integrated circuit, and the wires of a cable view of the assembled elements of FIG. 3.
that carry power and electrical signals to and from such FIG. 6 is a perspective view of a connector in accor
component. In one embodiment, the invention utilizes a dance with the invention in a further embodiment,
housing having a lid upon which the component is 45 FIG. 7 is a perspective view of a still further embodi
mounted, along with a conductive pad interconnected ment of the connector of the invention,
to the component and extending on an inside surface of FIG. 8 is a side, elevational and partially sectioned
the lid in a given pattern on given center-to-center spac- view, similar to FIG. 5, illustrating a solderless embodi
ings. The housing further includes a box-like structure ment of this invention.
having a floor and side walls with latches projecting 50 . „ T „
upwardly to receive and latch the lid to the structure DETAILED DES^IFTION OF THE
forming a closed body defining an interior cavity. An INVENTION
electrical cable is extended through the housing into the Referring first to FIG. 1, a component package 10 is
cavity with wires positioned therein in a given pattern illustrated, including an electrical cable 12, a portion of
on certain centers, held in the floor of the structure. An 55 a housing including a lid 20, and a housing structure 30.
elastomeric connector is provided, which includes a The lid 20 carries component 24 which may be consid
thin, dielectric and flexible film having conductive ered to be a sensor or transducer 24 desirably intercon
traces formed thereon as by etching away copper foil, nected to the cable 12. Components of the type under
suitably plated with a non-oxidizing coating, wrapped consideration are widely used in the many fields where
around an elastomeric core formed of a non-conducting 60 there is a need to measure parameters and develop sig
resilient material. The dimensions of the elastomeric nals representative of such parameters. For example, in
connector, including the spacing of the conductive the medical field, solid state sensors and transducers are
tracings, are made to be aligned with the pads con- widely utilized to measure pressures related to blood
nected to the component and with the wires fitted flow, heart rate, and the like, with signals developed to within the housing in a manner so that the connector is 65 record the dynamic status of such parameters for monicompressed when the lid is latched to the lower struc- toring and diagnosis of medical condition. Similar comture of the housing. The resilient characteristics of the ponents are utilized throughout the industrial field to core of the connector and the dimensions of the connec- measure a host of parameters necessary to monitor or