Beam-lead bonding apparatus

Claim 2

A bonding apparatus for bonding leads of a beam-lead device to a pattern of conductors on a carrier comprising: a housing; a tool holder mounted on the housing for movement relative thereto; a bonding tool attached to one end of the tool holder in axial alignment therewith; a working face on said bonding tool for engaging the leads of the beam-lead device, said working face being in a plane normal to the axis of the tool and tool holder; and drive means mounted on the housing engaging the tool holder remote from the bonding tool end for moving the tool holder on a tilted axis causing the working face of the bonding tool to alternately engage and bond leads of the beam-lead device to the conductors on a carrier.

Claim 3

A bonding apparatus as set forth in claim 1, which further includes at least two alignment bearing elements on the tool holder in spaced-apart relationship for positioning the tool holder relative to the housing.

Claim 4

A bonding apparatus as set forth in claim 2, wherein one of said bearing elements engages the drive means when the tool holder and bonding tool is on the tilted axis.

Claim 5

A bonding apparatus as set forth in claim 3, wherein the other bearing element is freely disengaged from the housing when the tool holder and bonding tool are on the tilted axis.

Claim 6

A bonding apparatus as set forth in claim 4, wherein axial movement of the bonding tool, tool holder and alignment bearing elements into the housing acts to disengage the other bearing element from the housing, said drive means further comprising means for moving the bonding tool and tool holder from a vertical axis to a tilted axis.

Claim 7

A bonding apparatus as set forth in claim 5, wherein the means for moving the bonding tool and tool holder from a vertical axis to a tilted axis comprises a lever arm pivotally mounted on the drive means.

Claim 8

A bonding apparatus as set forth in claim 5, wherein the means for moving the bonding tool and tool holder from a vertical axis to a tilted axis comprises a cam face on the drive means.

Claim 9

A bonding apparatus as set forth in claim 5, wherein the means for moving the bonding tool and tool holder from a vertical axis to a tilted axis is rotatably movable by the drive means in a circular orbit to cause the working face of the bonding tool to sequentially engage the leads of a beam-lead device.

Claim 10

A bonding apparatus for bonding leads of a beam-lead device as set forth in claim 2, wherein the working face of the bonding tool is pressed upon the leads of a beam-lead device to free the two alignment bearings from engagement with the housing and to engage one of said bearing elements with said drive means, whereby movement of said tool holder by said drive means pivots the bonding tool about a focal point at its own working face.

Claim 11

A bonding apparatus for bonding leads of a beam-leaD device to a pattern of conductors on a carrier comprising: a housing mounted on a base opposite a carrier on a work station to provide X, Y, Z and rotary movements relative thereto; a tool holder supported in the housing and adapted to be moved relative to the housing and the carrier; a bonding tool attached to one end of the tool holder and having a working face for engaging the leads of a beam-lead device; a torsional restraint connected to said tool holder for preventing rotational movement of said bonding tool and said tool holder relative to said housing; and drive means cooperating with said tool holder to move the end of the tool holder remote from the bonding tool in the housing while the working face of the bonding tool is engaging the leads of a beam-lead device on a pattern of conductors on a carrier whereby the force of the bonding tool exerts progressively distributed pressure on the leads of the beam-lead device.

Claim 12

A bonding apparatus for bonding leads of a beam-leaD device to a pattern of conductors on a carrier comprising: a housing mounted on a base opposite a carrier on a work station to provide X, Y, Z and rotary movements relative thereto; a tool holder supported in the housing and adapted to be moved relative to the housing and the carrier; a bonding tool attached to one end of the tool holder and having a working face for engaging the leads of a beam-lead device; a torsional restraint connected to said tool holder for preventing rotational movement of said bonding tool and said tool holder relative to said housing; and drive means cooperating with said tool holder to move the end of the tool holder remote from the bonding tool in the housing while the working face of the bonding tool is engaging the leads of a beam-lead device on a pattern of conductors on a carrier whereby the force of the bonding tool exerts progressively distributed pressure on the leads of the beam-lead device.

Claim 13

A bonding apparatus as set forth in claim 10, which further includes a pair of alignment bearing elements on said tool holder for normally aligning and supporting said tool holder in the housing.

Claim 14

A bonding apparatus as set forth in claim 11, wherein said pair of alignment bearing elements are normally urged into engagement with said housing by resilient means.

Claim 15

A bonding apparatus as set forth in claim 12, wherein said torsional restraint comprises a metallic bellows.

Claim 16

A bonding apparatus as set forth in claim 13, wherein said torsional restraint further comprises a pivot arm connected to the housing.

Claim 17

A bonding apparatus as set forth in claim 14, wherein said torsional restraint further comprises means for exerting a predetermined force on the bonding tool.

Claim 18

A bonding apparatus as set forth in claim 15, wherein said drive means comprises a weighted shaft for exerting a predetermined force on the bonding tool.

Claim 19

A bonding tool apparatus for bonding leads of a beam-lead device to a pattern of conductors on a carrier comprising: a housing arranged for movement relative to a carrier; a tool holder supported by said housing and restrained from rotational, downward and lateral movements by restraining means on the tool holder; a tool on said tool holder having a working face engageable with the leads of a beam-lead device to disengage said tool holder from said housing leaving the tool rotationally restrained but free to pivot about its working face; and drive means on said housing engaging said tool holder for pivoting said tool about its working face to bond the leads of the beam-lead device to the conductors on the carrier.

Claim 20

A bonding tool apparatus for bonding leads of a beam-lead device to a pattern of conductors on a carrier comprising: a housing arranged for movement relative to a carrier; a tool holder supported by said housing and restrained from rotational, downward and lateral movements by restraining means on the tool holder; a tool on said tool holder having a working face engageable with the leads of a beam-lead device to disengage said tool holder from said housing leaving the tool rotationally restrained but free to pivot about its working face; and drive means on said housing engaging said tool holder for pivoting said tool about its working face to bond the leads of the beam-lead device to the conductors on the carrier.