H01L2224/789

Loop height measurement of overlapping bond wires

An apparatus and method for measuring loop height of overlapping bonded wires, interconnecting the pads of a single or stacked silicon chips to the pads of a substrate taking the steps of: focussing of an optical assembly at multiple points of the bond wire including overlapping bond wires, capturing an image of the bond wire at each of the predetermined focused points; calculating the height of each point of the wire with respect to a reference plane; and tabulating the height data using the X, Y and Z coordinates.

Adaptive Routing for Correcting Die Placement Errors

A method includes, receiving a layout design of at least part of an electronic module, the design specifying at least (i) an electronic device coupled to at least a substrate, and (ii) an electrical trace that is connected to the electronic device and has a designed route. A digital input, which represents at least part of an actual electronic module that was manufactured in accordance with the layout design but without at least a portion of the electrical trace, is received. An error in coupling the electronic device to the substrate, relative to the layout design, is estimated based on the digital input. An actual route that corrects the estimated error, is calculated for at least the portion of the electrical trace. At least the portion of the electrical trace is formed on the substrate of the actual electronic module, along the actual route instead of the designed route.

WIRE NON-ATTACHMENT INSPECTION SYSTEM, WIRE NON-ATTACHMENT DETECTION DEVICE, AND WIRE NON-ATTACHMENT DETECTION METHOD
20220130026 · 2022-04-28 · ·

The present invention provides a wire non-attachment inspection system (100) of a semiconductor device (10), wherein: the wire non-attachment inspection system (100) comprises an ultrasonic oscillator (40), an ultrasonic transducer (42), a camera (45), a display (48), and a control unit (50); and the control unit (50) calculates the difference in image between one frame of a captured video and a previous frame before the one frame, and displays, on the display, an image of a wire for which the difference exceeds a prescribed threshold value so as to be displayed differently than the image of another wire.

Adaptive routing for correcting die placement errors

A method includes, receiving a layout design of at least part of an electronic module, the design specifying at least (i) an electronic device coupled to at least a substrate, and (ii) an electrical trace that is connected to the electronic device and has a designed route. A digital input, which represents at least part of an actual electronic module that was manufactured in accordance with the layout design but without at least a portion of the electrical trace, is received. An error in coupling the electronic device to the substrate, relative to the layout design, is estimated based on the digital input. An actual route that corrects the estimated error, is calculated for at least the portion of the electrical trace. At least the portion of the electrical trace is formed on the substrate of the actual electronic module, along the actual route instead of the designed route.

METHODS OF DETECTING BONDING BETWEEN A BONDING WIRE AND A BONDING LOCATION ON A WIRE BONDING MACHINE
20220328367 · 2022-10-13 ·

A method of determining a bonding status between wire and at least one bonding location of a semiconductor device is provided. The method includes the steps of: (a) bonding a portion of wire to at least one bonding location of a semiconductor device using a bonding tool of a wire bonding machine; and (b) detecting whether another portion of wire engaged with the bonding tool, and separate from the portion of wire, contacts the portion of wire in a predetermined height range, thereby determining if the portion of wire is bonded to the at least one bonding location.

Methods of detecting bonding between a bonding wire and a bonding location on a wire bonding machine

A method of determining a bonding status between wire and at least one bonding location of a semiconductor device is provided. The method includes the steps of: (a) bonding a portion of wire to at least one bonding location of a semiconductor device using a bonding tool of a wire bonding machine; and (b) detecting whether another portion of wire engaged with the bonding tool, and separate from the portion of wire, contacts the portion of wire in a predetermined height range, thereby determining if the portion of wire is bonded to the at least one bonding location.

Semiconductor element and method for identifying semiconductor element
11408925 · 2022-08-09 · ·

A semiconductor element encompasses a first external electrode on an upper surface side of a semiconductor chip, a second external electrode, spaced apart from the first external electrode, provided in parallel with the first external electrode; and a protective film covering the first and second external electrodes, having first and second windows to expose portions of upper surfaces of the first and second external electrodes, respectively. Planar patterns of the first and second windows are in two-fold rotational symmetry with respect to a center point of an area including the first and second external electrodes and to be asymmetric with respect to a center line between the first and second external electrodes.

METHODS OF DETERMINING SHEAR STRENGTH OF BONDED FREE AIR BALLS ON WIRE BONDING MACHINES
20220270937 · 2022-08-25 ·

A method of determining a shear strength of a bonded free air ball on a wire bonding machine is provided. The method includes the steps of: (a) providing a free air ball at a working end of a wire bonding tool; (b) bonding the free air ball to a bonding location of a workpiece; (c) moving the wire bonding tool, while in contact with the bonded free air ball, in a direction along the bonding location; (d) monitoring wire bonding process signals during step (c); and (e) determining a shear strength using the wire bonding process signals monitored in step (d).

Method of vertically vibrating a bonding arm
11302667 · 2022-04-12 · ·

To provide a wire bonding apparatus, which is insusceptible to a bonding state at a second bonding point due to a wire cut error or the like, or to members such as a capillary and a wire, and is capable of automatically protruding the wire from a leading end of the capillary, provided is a wire bonding apparatus including: a capillary (6) having a through hole through which a wire (40) is to be inserted; a holding unit, which is provided above the capillary (6), and is configured to hold the wire (40) inserted through the capillary (6); and a vibrating unit configured to vertically vibrate the capillary (6). Under a state in which the holding unit holds the wire (40), the vibrating unit vertically vibrates the capillary (6) so that the wire (40) is protruded from the leading end of the capillary.

LOOP HEIGHT MEASUREMENT OF OVERLAPPING BOND WIRES
20220115253 · 2022-04-14 ·

An apparatus and method for measuring loop height of overlapping bonded wires, interconnecting the pads of a single or stacked silicon chips to the pads of a substrate taking the steps of: focussing of an optical assembly at multiple points of the bond wire including overlapping bond wires, capturing an image of the bond wire at each of the predetermined focused points; calculating the height of each point of the wire with respect to a reference plane; and tabulating the height data using the X, Y and Z coordinates.