摘要:
A semiconductor structure is provided. In one embodiment, a bond pad is formed above one or more underlying layers of a substrate. A plurality of dummy plugs are spaced around the bond pad, the plurality of dummy plugs substantially vertically traversing the one or more underlying layers, wherein the plurality of dummy plugs anchor at least two of the underlying layers together to achieve improved mechanical strength.
摘要:
The present disclosure provides a method of fabricating a semiconductor device that includes forming a high-k dielectric over a substrate, forming a first metal layer over the high-k dielectric, forming a second metal layer over the first metal layer, forming a first silicon layer over the second metal layer, implanting a plurality of ions into the first silicon layer and the second metal layer overlying a first region of the substrate, forming a second silicon layer over the first silicon layer, patterning a first gate structure over the first region and a second gate structure over a second region, performing an annealing process that causes the second metal layer to react with the first silicon layer to form a silicide layer in the first and second gate structures, respectively, and driving the ions toward an interface of the first metal layer and the high-k dielectric in the first gate structure.
摘要:
A three dimensional (3D) chip stack includes a first chip bonded to a second chip. The first chip includes a first bump structure overlying the first substrate, and the second chip includes a second bump structure overlying the second substrate. The first bump structure is attached to the second bump structure, and a joining region is formed between the first bump structure and the second bump structure. The joining region is a solderless region which includes a noble metal.
摘要:
The described embodiments of mechanisms of forming a package on package (PoP) structure involve bonding with connectors with non-solder metal balls to a packaging substrate. The non-solder metal balls may include a solder coating layer. The connectors with non-solder metal balls can maintain substantially the shape of the connectors and control the height of the bonding structures between upper and lower packages. The connectors with non-solder metal balls are also less likely to result in bridging between connectors or disconnection (or cold joint) of bonded connectors. As a result, the pitch of the connectors with non-solder metal balls can be kept small.
摘要:
The mechanisms for forming a multi-chip package described enable chips with different bump sizes being packaged to a common substrate. A chip with larger bumps can be bonded with two or more smaller bumps on a substrate. Conversely, two or more small bumps on a chip may be bonded with a large bump on a substrate. By allowing bumps with different sizes to be bonded together, chips with different bump sizes can be packaged together to form a multi-chip package.
摘要:
A method of forming wafer-level chip scale packaging solder bumps on a wafer substrate involves cleaning the surface of the solder bumps using a laser to remove any residual molding compound from the surface of the solder bumps after the solder bumps are reflowed and a liquid molding compound is applied and cured.
摘要:
The disclosure relates to a conductive bump structure of a semiconductor device. An exemplary structure for a semiconductor device comprises a substrate comprising a major surface and conductive bumps distributed over the major surface of the substrate. Each of a first subset of the conductive bumps comprise a regular body, and each of a second subset of the conductive bumps comprise a ring-shaped body.
摘要:
A semiconductor device includes a barrier layer between a solder bump and a post-passivation interconnect (PPI) layer. The barrier layer is formed of at least one of an electroless nickel (Ni) layer, an electroless palladium (Pd) layer or an immersion gold (Au) layer.
摘要:
A method of forming an integrated circuit is provided. The method includes forming a gate electrode of an NMOS transistor over a substrate by a gate-first process. A gate electrode of a PMOS transistor is formed over the substrate by a gate-last process.
摘要:
A Fin field effect transistor includes a fin disposed over a substrate. A gate is disposed over a channel portion of the fin. A source region is disposed at a first end of the fin. A drain region is disposed at a second end of the fin. The source region and the drain region are spaced from the substrate by at least one air gap.