Abstract:
Packaging methods and structures for semiconductor devices that utilize a novel die attach film are disclosed. In one embodiment, a method of packaging a semiconductor device includes providing a carrier wafer and forming a die attach film (DAF) that includes a polymer over the carrier wafer. A plurality of dies is attached to the DAF, and the plurality of dies is packaged. At least the carrier wafer is removed from the packaged dies, and the packaged dies are singulated.
Abstract:
An embodiment is a structure comprising a substrate, a first die, and a second die. The substrate has a first surface and a second surface opposite the first surface. The substrate has a through substrate via extending from the first surface towards the second surface. The first die is attached to the substrate, and the first die is coupled to the first surface of the substrate. The second die is attached to the substrate, and the second die is coupled to the first surface of the substrate. A first distance is between a first edge of the first die and a first edge of the second die, and the first distance is in a direction parallel to the first surface of the substrate. The first distance is equal to or less than 200 micrometers.
Abstract:
Methods and apparatus for performing dicing of die on wafer interposers. Methods are disclosed that include receiving an interposer assembly including one or more integrated circuit dies mounted on a die side of an interposer substrate and having scribe areas defined in spaces between the integrated circuit dies, the interposer having an opposite side for receiving external connectors; mounting the die side of the interposer assembly to a tape assembly, the tape assembly comprising an adhesive tape and preformed spacers disposed between and filling gaps between the integrated circuit dies; and sawing the interposer assembly by cutting the opposite side of the interposer in the scribe areas to make cuts through the interposer, the cuts separating the interposer into one or more die on wafer assemblies. Apparatuses are disclosed for use with the methods.
Abstract:
A device includes a semiconductor substrate having a front surface and a back surface opposite the front surface. An insulation region extends from the front surface into the semiconductor substrate. An inter-layer dielectric (ILD) is over the insulation region. A landing pad extends from a top surface of the ILD into the insulation region. A through-substrate via (TSV) extends from the back surface of the semiconductor substrate to the landing pad.
Abstract:
Apparatus and methods for providing a molded chip interposer structure and assembly. A molded chip structure having at least two integrated circuit dies disposed within a mold compound is provided having the die bond pads on the bottom surface; and solder bumps are formed in the openings of a dielectric layer on the bottom surface, the solder bumps forming connections to the bond pads. An interposer having a die side surface and a board side surface is provided having bump lands receiving the solder bumps of the molded chip structure on the die side of the interposer. An underfill layer is formed between the die side of the interposer and the bottom surface of the molded chip structure surrounding the solder bumps. Methods for forming the molded chip interposer structure are disclosed.
Abstract:
A modeling system for modeling integrated circuits includes a process variation generator for generating a first statistic distribution of a process parameter; a performance parameter distribution generator for generating a second distribution of a performance parameter; a stress generator for generating a third statistic distribution of the performance parameter under a stress condition; and a circuit simulator for receiving data randomly generated based on the first, the second and the third distributions and for generating a statistic distribution of a target performance parameter.
Abstract:
Provided is a method for forming a composite barrier layer with superior barrier qualities and superior adhesion properties to both dielectric materials and conductive materials as the composite barrier layer extends throughout the semiconductor device. The composite barrier layer may be formed in regions where it is disposed between two conductive layers and in regions where it is disposed between a conductive layer and a dielectric material. The composite barrier layer may consist of various pluralities of layers and the arrangement of layers that form the composite barrier layer may differ as the barrier layer extends throughout different sections of the device. Amorphous layers of the composite barrier layer generally form boundaries with dielectric materials and crystalline layers generally form boundaries with conductive materials such as interconnect materials.
Abstract:
A device includes an interposer, which includes a substrate having a top surface. An interconnect structure is formed over the top surface of the substrate, wherein the interconnect structure includes at least one dielectric layer, and metal features in the at least one dielectric layer. A plurality of through-substrate vias (TSVs) is in the substrate and electrically coupled to the interconnect structure. A first die is over and bonded onto the interposer. A second die is bonded onto the interposer, wherein the second die is under the interconnect structure.
Abstract:
Germanium field effect transistors and methods of fabricating them are described. In one embodiment, the method includes forming a germanium oxide layer over a substrate and forming a metal oxide layer over the germanium oxide layer. The germanium oxide layer and the metal oxide layer are converted into a first dielectric layer. A first electrode layer is deposited over the first dielectric layer.
Abstract:
A structure and method of making an N-FET with a highly doped source/drain and strain booster are presented. The method provides a substrate with a Ge channel region. A gate dielectric is formed over the Ge channel and a gate electrode is formed over the gate dielectric. Sacrificial gate spacers are disposed on the sidewalls of the gate dielectric and gate electrode. Cavities are etched into the substrate extending under the sacrificial gate spacers. Si1−xGex source/drain regions are doped in-situ during formation, x