Provided is a semiconductor package including a first semiconductor chip; a plurality of lower first conductive posts on the first semiconductor chip; a second semiconductor chip offset-stacked on the first semiconductor chip; a plurality of lower second conductive posts on the second semiconductor chip; a first molding layer around the first semiconductor chip, and the second semiconductor chip; a third adhesive layer on an upper surface of the first molding layer; a plurality of upper first conductive posts on the plurality of lower first conductive posts; a plurality of upper second conductive posts on the plurality of lower second conductive posts; a third semiconductor chip on the third adhesive layer; a plurality of third conductive posts on the third semiconductor chip; a second molding layer on the third adhesive layer; and a redistribution structure on the second molding layer.

A patch structure of an integrated circuit package comprises a core having a first side facing downwards and a second side facing upwards. A first solder resist (SR) layer is formed on the first side of the core, wherein the first SR layer comprises a first layer interconnect (FLI) and has a first set of one or more microbumps thereon to bond to one or more logic die. A second solder resist (SR) layer is formed on the second side of the core, wherein the second SR layer has a second set of one or more microbumps thereon to bond with a substrate. One or more bridge dies includes a respective sets of bumps, wherein the one or more bridge dies is disposed flipped over within the core such that the respective sets of bumps face downward and connect to the first set of one or more microbumps in the FLI.

Methods, apparatuses, and systems related to an apparatus configured to provide varied connection positions. The varied connection positions may be provided through an alternating pattern of pads and pedestals that are each configured to attach and electrically couple to complementary connection points on a connected device.

Provided are a semiconductor structure and a method of forming the same. The semiconductor structure includes: a substrate, an under bump metallurgy (UBM) structure, and a solder. The UBM structure is disposed over the substrate. The UBM structure includes a first metal layer; a second metal layer disposed on the first metal layer; and a third metal layer disposed on the second metal layer. A sidewall of the first metal layer is substantially aligned with a sidewall of the second metal layer, and a sidewall of the third metal layer is laterally offset inwardly from the sidewalls of the first and second metal layers. The solder is disposed on the third metal layer.

Embodiments of the present disclosure relate to a method of digital lithography for semiconductor packaging and a software application. The method includes receiving metrology data to a digital lithography system, the metrology data corresponding to the pillar heights and pillar critical dimensions of a plurality of non-uniform pillars disposed over the die, wherein at least two pillars have different pillar heights and different pillar critical dimensions, the digital lithography system is operable to update a mask pattern, the mask pattern corresponding to a pattern of uniform pillars, updating the mask pattern according to the metrology data to generate a compensated mask pattern, and conducting a digital lithography process to pattern on a resist to form a plurality of vias, the vias are formed over each non-uniform pillar of the plurality of non-uniform pillars and include a via depth and a via critical dimension after the resist is developed.

A method of making an assembly can include juxtaposing a top surface of a first electrically conductive element at a first surface of a first substrate with a top surface of a second electrically conductive element at a major surface of a second substrate. One of: the top surface of the first conductive element can be recessed below the first surface, or the top surface of the second conductive element can be recessed below the major surface. Electrically conductive nanoparticles can be disposed between the top surfaces of the first and second conductive elements. The conductive nanoparticles can have long dimensions smaller than 100 nanometers. The method can also include elevating a temperature at least at interfaces of the juxtaposed first and second conductive elements to a joining temperature at which the conductive nanoparticles can cause metallurgical joints to form between the juxtaposed first and second conductive elements.

A method of electroplating a metal into features, having substantially different depths, of a partially fabricated electronic device on a substrate is provided. The method includes adsorbing accelerator into the bottom of recessed features; partially filling the features by a bottom up fill mechanism in an electroplating solution; diffusing leveler into shallow features to decrease the plating rate in shallow features as compared to deep features; and electroplating more metal into the features such that the height of metal in deep features is similar to the height of metal in shallow features.

Methods for forming semiconductor structures are provided. The method for forming a semiconductor structure includes forming a metal pad over a first substrate and forming a polymer layer over the metal pad. The method for forming a semiconductor structure further includes forming a seed layer over the metal pad and extending over the polymer layer and forming a conductive pillar over the seed layer. The method for forming a semiconductor structure further includes wet etching the seed layer using an etchant comprising H2O2. In addition, the step of wet etching the seed layer is configured to form an extending portion having a slope sidewall.

A semiconductor package and a method of manufacturing the same are provided. The method includes stacking plurality of semiconductor chips on a package substrate, covering the package substrate with a photoresist film to surround side and top surfaces of the plurality of semiconductor chips, exposing and developing the photoresist film to form a plurality of openings in the photoresist film over an outer region of the top surface of a corresponding semiconductor chip of the plurality of semiconductor chips, filling the plurality of openings with a conductive material to form a plurality of conductive posts, removing the photoresist film, and forming a molding member surrounding the plurality of semiconductor chips and the plurality of conductive posts, wherein the capping layer comprises a polymer material layer including sulfur.

A selective stencil mask and a stencil printing method are provided. The stencil mask is for printing a fluid material onto a substrate, and comprises: a stencil member comprising: at least one printing region each having an array of apertures that allow the fluid material to flow therethrough and deposit onto the substrate; and a blocking region configured to prevent the fluid material from flowing therethrough; and a supporting member attached to the stencil member and configured to, when the stencil mask is placed on the substrate, contact the substrate and create a gap between the stencil member and the substrate.