Texas Instruments Corporation

Amit Sureshkumar Nangia

Siva Prakash Gurrum

Gregory Thomas Ostrowicki

Sreenivasan Kalyani Koduri

Christopher Daniel Manack

Janakiraman Seetharaman

Kejun Zeng

Kashyap Mohan

In examples, a semiconductor package comprises a substrate having multiple conductive layers coupled to bond pads at a surface of the substrate. The package includes a semiconductor die including a device side facing the substrate, the device side having first and second circuitry regions, the first circuitry region having greater sensitivity to at least one of mechanical or thermal stress than the second circuitry region. The package also includes conductive members coupled to the bond pads of the substrate, in direct physical contact with the second circuitry region, and not in direct physical contact with the first circuitry region. The package further comprises a first support member coupled to the device side of the semiconductor die and extending toward the substrate and not touching the substrate or a second support member coupled to the substrate. The package also includes a ring on the substrate and encircling the bond pads and a glob top member covering the semiconductor die and a portion of the substrate circumscribed by the ring. The package also includes a mold compound covering the glob top member and the substrate.

Semiconductor package for stress isolation

In a described example, an apparatus includes: a semiconductor die with a component on a device side surface; a die seal surrounding the component on the device side surface; a package substrate having bond pads on a die side surface; a package substrate seal formed on the die side surface of the package substrate corresponding to the die seal on the semiconductor die; the semiconductor die flip chip mounted on the bond pads of the package substrate with solder joints connecting post connects on the semiconductor die to the bond pads of the package substrate; a mold compound seal formed by the die seal and the package substrate seal; and mold compound covering a portion of the semiconductor die, a portion of the die side of the package substrate, and contacting the mold compound seal, the mold compound spaced from the component.

Flip chip semiconductor device package with mold compound seal

A described example includes: a semiconductor device die with an active surface; the semiconductor device die mounted on a package substrate with substrate leads and the semiconductor device die electrically coupled to the substrate leads; at least a first rigid low expansion material (RLEM) covering a portion of the semiconductor device die; and the first RLEM, the semiconductor device die, and a portion of the substrate leads covered with mold compound and forming a packaged semiconductor device die.

Semiconductor device package with reduced stress

A semiconductor package includes a semiconductor die including a semiconductor substrate, a strain-sensitive component located within or over a metallization layer of the semiconductor die, wherein a parameter of the strain-sensitive component exhibits a longitudinal shift due to a longitudinal strain and a transverse shift due to a transverse strain, and a mold compound covering the semiconductor die and the strain-sensitive component. The semiconductor package, including the semiconductor die and the mold compound, defines an orthogonal package-induced strain ratio on the strain-sensitive component on the semiconductor die surface. The strain-sensitive component is located such that the longitudinal shift due to package-induced strains offsets the transverse shift due to the package-induced strains.

Strain-induced shift mitigation in semiconductor packages

An integrated circuit (IC) includes a substrate including circuitry configured for a function, the circuitry including at least one stress sensitive circuit portion, with at least a portion of nodes in the circuitry electrically coupled to bond pads provided by a top metal layer. A metal wall that is ring-shaped is positioned above the top metal layer that is not electrically coupled to the circuitry. The stress sensitive circuit portion is with at least a majority of its area within an inner area of the substrate that is framed by the metal wall to provide a cavity.

IC having a metal ring thereon for stress reduction

A semiconductor package includes an integrated circuit formed on a semiconductor substrate. A stress buffer layer is provided on the integrated circuit. Further, a mold compound is provided on a surface of the stress buffer layer opposite the integrated circuit. The mold compound comprises a resin. The resin includes filler particles. The filler particles have multiple sizes with the largest of the particles having a size between 5 microns and 32 microns.

Semiconductor package with filler particles in a mold compound

A semiconductor package includes a lead frame having a die attach pad and a plurality of leads. A die is attached to the die attach pad and the electrically connected to the plurality of leads. The die includes a plurality of bond pads along a periphery of the die and a bond pad strip surrounding a circuit in the die. A first plurality of bond wires is bonded between first opposite sides of the bond pad strip. The first plurality of bond wires is aligned in a first direction. A second plurality of bond wires is bonded between second opposite sides of the bond pad strip. The second plurality of bond wires is aligned in a second direction. Mold compound covers portions of the lead frame, the die, the bond pad strip, the first plurality of bond wires and the second plurality of bond wires.

Semiconductor package with a wire bond mesh

A method for fabricating a semiconductor device is disclosed. A packaged semiconductor device is provided having copper ball bonds attached to aluminum pads. The packaged device is treated for at least one cycle at a temperature in the range from about 250&#xb0; C. to 270&#xb0; C. for a period of time in the range from about 20 s to 40 s.

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Murphy, TX, United States of America

Amit Sureshkumar Nangia