摘要:
The invention provides a wire-bonding apparatus for forming electrical connections between a semiconductor chip and a leadframe, comprising a plurality of bond-heads associated with a plurality of work holders on said wire bonding apparatus for holding a plurality of leadframes, wherein each bond-head of the apparatus is capable of independent bonding operation simultaneously with the other bond-heads, without synchronization of movement with the other bond-heads.
摘要:
The invention provides an apparatus and a method for forming conductive bumps on a plurality of semiconductor devices with an oxidizable material. The apparatus comprises a bump forming device, a chamber system adapted to house the semiconductor devices and a gas supply for supplying an inert gas into the chamber system. A support table is provided for supporting the semiconductor devices during bumping, and the said support table is operative to move the semiconductor devices from a bumping site into the chamber system after bumping.
摘要:
A bonding system (1) bonds wires between a first electrical contact surface on a semiconductor chip and a second electrical contact surface on a substrate. The bonding system (1) has a first memory device (3) having a master bond program stored thereon and a second memory device (4) having an operating bond program stored thereon.
摘要:
Disclosed is an apparatus for mounting a transducer to a bond head of a wire bonder. In particular, the bond head of the wire bonder is operative to mechanically drive the transducer when forming electrical interconnections between separate locations within a semiconductor package. Specifically, the apparatus comprises: i) a flexural structure having a connector for connecting to the transducer, the flexural structure being configured to bend; and ii) at least one actuator attached to the flexural structure, the at least one actuator being operative to bend the flexural structure to thereby cause a displacement of the transducer connected thereto via the connector.
摘要:
Apparatus for detecting the oscillation amplitude of an oscillating object (3) includes an optical radiation source (9) and a detector (10) including first and second optical radiation sensing areas (24A, 24B) adjacent each other. The detector (10) and the optical radiation source (9) are adapted to be located opposite each other with the oscillating object (3) located between the source (9) and the detector (10) so that the object (3) blocks a portion of the sensing areas (24A, 24B) from receiving optical radiation from the source (9). A processor (18) coupled to the detector (10) receives first and second output signals representing the magnitude of optical radiation sensed by the first and second optical radiation sensing areas (24A, 24B), respectively. The processor (18) processes the first and second output signals to obtain an indication of the amplitude of oscillation of the object (3).
摘要:
A method of forming a wire bond with a bonding tool is provided that comprises the steps of forming a ball bond onto a bonding surface, raising the bonding tool away from the ball bond to form a neck portion integrated with a top of the ball bond, locating a circumference of a tip of the bonding tool onto the neck portion, pressing the neck portion with the circumference of the tip to form a depression in the neck portion without bonding the neck portion to the ball bond, and thereafter raising the bonding tool away from the ball bond.
摘要:
A method of bonding wire between first and second bonding points with a bonding tool, such as a capillary, is disclosed. A first bond is formed at the first bonding point with the bonding tool, and further steps include moving the bonding tool away from the first bond by a first distance, then moving the bonding tool towards the first bonding point and coupling the wire to the first bond. Thereafter, the bonding tool is moved away from the first bond by a second distance and a kink is formed in the wire. The bonding tool is subsequently moved to extend a sufficient length of wire to form a wire loop between the first and second bonding points before the bonding tool is moved to the second bonding point to form a second bond. Characteristics of wire bonds formable using the method are also disclosed.
摘要:
The invention provides a wire bond bonding a wire to a connection pad of an electronic device, and a method of forming the wire bond. A first stitch bond is formed on the connection pad, and a second stitch bond is next formed on the connection pad that is contiguous with the first stitch bond.
摘要:
The invention provides an apparatus and a method for preventing oxidation of an electronic device, such as a semiconductor leadframe, when it is heated. The apparatus comprises an area in which said device is to be heated and inlet means adapted to supply a relatively inert gas to the said area. In particular, the apparatus includes a porous distribution element through which the inert gas is passed from the inlet means to said area, whereby to protect the electronic device in the area from oxidation.
摘要:
A large electronic device having a bonding area on one side that comprises first and second portions may be bonded by first locating the first portion but not the second portion of the electronic device for bonding by a bonding tool. After the first portion of the electronic device has been bonded, the electronic device is conveyed to a rotary platform that is rotatable along a substantially horizontal plane. The electronic device is rotated on the rotary platform to change the respective positions of the bonded first portion and unbonded second portion of the electronic device, before the electronic device is conveyed to the bonding tool such that the second portion of the electronic device is located for bonding by the bonding tool. The second portion of the electronic device may then be bonded.