Patent ID: 8752751

Claim:
A wire bonding machine comprising: a lead frame support plate configured and operative to support a lead frame when the wire bonding machine performs wire bonding, the lead frame support plate comprising: a support surface for supporting the lead frame; an array of vacuum holes configured to apply a vacuum force; a network of suction grooves provided on the support surface, each suction groove being arranged to be in fluid communication with at least one vacuum hole to enable a suction force to be created, in response to the vacuum force, along the network of suction grooves for holding the lead frame against the support surface; a window clamp positioned over the lead frame support plate for clamping the lead frame on the support surface of the lead frame support plate, the window clamp comprising an array of wire bonding windows having corresponding apertures configured to register with respective semiconductor dies arranged on the lead frame; wherein the array of wire bonding windows of the window clamp comprises: two furthermost windows along a longitudinal axis; and a pair of slots positioned on each side of the array, each slot comprising an elongate portion defined by a first end and a second end, the first and the second ends extending at least between the apertures of the two furthermost windows.