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US 12,374,648 B2Granted
Connecting strip for discrete and power electronic devices
AssigneeSTMicroelectronics S.r.l.
InventorAgatino Minotti
Life of this patent
Estimating the term…
Abstract
A connecting strip of conductive elastic material having an arched shape having a concave side and a convex side. The connecting strip is fixed at the ends to a support carrying a die with the convex side facing the support. During bonding, the connecting strip undergoes elastic deformation and presses against the die, thus electrically connecting the at least one die to the support.
Claims20
A device, comprising:
- a connecting strip that includes:
- an arched shape having a first side opposite a second side, the first side including one or more concave sides, the second side including one or more convex sides opposite of respective concave sides;
- a contact layer of a first material covering the second side;
- and
- flat bonding ends on each end of the arched shape;
- and
- a support that includes:
- a first die with a first contact pad;
- and
- a second die with at least two second contact pads, the first contact pad and the at least two second contact pads each coupled to one of the one or more convex sides, the first and the at least two second contact pads including the first material.
7 more elements
An electronic device, comprising:
- a support including:
- a first conductive layer;
- a first insulating layer on the first conductive layer;
- and
- a second conductive layer on the first insulating layer;
- at least one die including semiconductor material on the second conductive layer;
- an aluminum contact pad on the at least one die, the aluminum contact pad having a first thickness in the range of 4 μm and 9 μm;
- and
- a connecting strip having a first side and a second side opposite the first side, the first side including an aluminum contact layer coupled to the aluminum contact pad,
- wherein the connecting strip includes flat bonding ends bonded to the support and is elastically against the at least one die, and
- wherein the first side includes one or more concave sides and the second side includes one or more convex sides opposite of respective concave sides.
8 more elements
An electronic device, comprising:
- a support;
- a first die on the support;
- at least two contact pads coupled to the first die, the at least two contact pads comprising a first material;
- a connecting strip having a first side and a second side opposite the first side, the second side coupled to each of the at least two contact pads on the first die,
- wherein the connecting strip has an arched shape and includes flat bonding ends on each end of the arched shape, and
- wherein the first side includes one or more concave sides and the second side includes one or more convex sides opposite of respective concave sides;
- and
- a contact layer of the first material coupled to the second side of the connecting strip.
5 more elements
Dependencies are inferred from the claim text.