摘要:
A semiconductor structure includes a first substrate and a second substrate bonded over the first substrate. The first substrate includes a passivation layer formed over the first substrate. The passivation layer includes at least one first opening exposing a first bonding pad formed over the first substrate. The second substrate includes at least one second opening aligned with and facing the first opening.
摘要:
A packaged semiconductor chip comprising an integrated circuit chip including a low-k dielectric layer and a chip substrate, wherein an edge of the integrated circuit chip has a first edge portion and a second edge portion. At least part of the first edge portion being across a same level as the low-k dielectric layer, and the first edge portion having been laser ablated to have a series of rounded recesses formed therein. The second edge portion being across a same level as at least part of the chip substrate, and the second edge portion having a different surface texture than that of the first edge portion. The packaged semiconductor chip also comprises a packaging substrate having the integrated circuit chip attached and a plurality of solder bumps electrically connecting between the packaging substrate and the integrated circuit chip.
摘要:
A semiconductor package assembly comprises a first conductive pad on a semiconductor substrate; a second conductive pad on a package substrate; a bump physically coupled between the first conductive pad and the second conductive pad, wherein the bump is substantially lead-free or high-lead-containing; the bump has a first interface with the first conductive pad, the first interface having a first linear dimension; the bump has a second interface with the second conductive pad, the second interface having a second linear dimension; and wherein the ratio of the first linear dimension and the second linear dimension is between about 0.7 and about 1.7.
摘要:
A semiconductor structure includes a first substrate and a second substrate bonded over the first substrate. The first substrate includes a passivation layer formed over the first substrate. The passivation layer includes at least one first opening exposing a first bonding pad formed over the first substrate. The second substrate includes at least one second opening aligned with and facing the first opening.
摘要:
A method of cutting an integrated circuit chip from a wafer having a plurality of integrated circuit chips is provided. An upper portion of the wafer is ablated using two laser beams to form two substantially parallel trenches that extend into the wafer from a top surface of the wafer through intermetal dielectric layers and at least partially into a substrate of the wafer. After the ablating to form the two trenches, cutting through the wafer between outer sidewalls of the two laser-ablated trenches with a saw blade is performed. A width between the outer sidewalls of the two laser-ablated trenches is greater than a cutting width of the saw blade. This may be particularly useful in lead-free packaging applications and/or applications where the intermetal dielectric layers use low-k dielectric materials, for example.
摘要:
A packaged semiconductor chip comprising an integrated circuit chip including a low-k dielectric layer and a chip substrate, wherein an edge of the integrated circuit chip has a first edge portion and a second edge portion. At least part of the first edge portion being across a same level as the low-k dielectric layer, and the first edge portion having been laser ablated to have a series of rounded recesses formed therein. The second edge portion being across a same level as at least part of the chip substrate, and the second edge portion having a different surface texture than that of the first edge portion. The packaged semiconductor chip also comprises a packaging substrate having the integrated circuit chip attached and a plurality of solder bumps electrically connecting between the packaging substrate and the integrated circuit chip.
摘要:
A semiconductor package assembly comprises a first conductive pad on a semiconductor substrate; a second conductive pad on a package substrate; a bump physically coupled between the first conductive pad and the second conductive pad, wherein the bump is substantially lead-free or high-lead-containing; the bump has a first interface with the first conductive pad, the first interface having a first linear dimension; the bump has a second interface with the second conductive pad, the second interface having a second linear dimension; and wherein the ratio of the first linear dimension and the second linear dimension is between about 0.7 and about 1.7.
摘要:
A method and system is disclosed for better packaging semiconductor devices. In one example, a semiconductor device package comprises a package substrate, at least one die with an orientation of placed on the substrate with electrical connections made between the package substrate and the die, and an underfill fillet attaching the die to the substrate with the underfill fillet reaching less than 60% of a thickness of the die on at least one side thereof.
摘要:
A method of fabricating a three-dimensional integrated circuit comprises attaching a wafer to a carrier, mounting a plurality of semiconductor dies on top of the wafer to form a wafer stack. The method further comprises forming a molding compound layer on top of the wafer, attaching the wafer stack to a tape frame and dicing the wafer stack to separate the wafer stack into a plurality of individual packages.
摘要:
A device includes a bottom chip and an active top die bonded to the bottom chip. A dummy die is attached to the bottom chip. The dummy die is electrically insulated from the bottom chip.