Hold-down clamp with mult-fingered interchangeable insert for wire bonding semiconductor lead frames
AssigneeMotorola, Inc.
InventorGarland D. Cotney
Life of this patent
Estimating the term…
Abstract
A multi-fingered clamp assembly provides for the independent clamping of individual leads of a semiconductor device lead frame during wire bonding. The assembly consists of a clamp frame which carries and supports an interchangeable clamp insert. The clamp insert provides individual spring-like fingers which align directly with the leads to be clamped, clamping each lead independently and uniformly. This results in better, more uniform mechanical integrity of the bond. The clamp frame is aligned to the wire bond equipment, allowing a new clamp insert to be inserted for a different application without necessitating realignment.
Claims9
An apparatus for clamping leads of a semiconductor device lead frame which comprises:
- a multi-fingered clamp insert for fixedly holding the leads of the lead frame against a supporting structure;
- a clamp frame for carrying and aligning the clamp insert, having a top side and a bottom side;
- and
- means for securing the clamp insert to the clamp frame.
An apparatus for clamping the leads of a lead frame during a wire bond operation which comprises:
- a multi-fingered clamp insert for fixedly holding the leads of the lead frame against a supporting structure, the fingers being spring loaded, each finger clamping at least one lead in place;
- and
- means for carrying and aligning the clamp insert.
An apparatus for fixedly holding leads of a semiconductor lead frame during wire bonding, comprising:
- a clamp insert having a plurality of individually spring loaded fingers;
- and
- support means for receiving the semiconductor lead frame and against which the plurality of fingers hold the leads of the lead frame.
A method for clamping the leads of a semiconductor lead frame during a wire bond operation comprising:
- mounting a multi-finger clamp insert onto a clamp frame;
- aligning the clamp insert over the leads of the lead frame;
- and
- pressing down upon the leads of the lead frame with the clamp insert in such a manner that each finger of the clamp insert securely holds at least one of the leads against a supporting structure.
Dependencies are inferred from the claim text.