Abstract:
A through substrate via includes an annular conductor layer at a periphery of a through substrate aperture, and a plug layer surrounded by the annular conductor layer. A method for fabricating the through substrate via includes forming a blind aperture within a substrate and successively forming and subsequently planarizing within the blind aperture a conformal conductor layer that does not fill the aperture and plug layer that does fill the aperture. The backside of the substrate may then be planarized to expose at least the planarized conformal conductor layer.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for filling a via within a wafer, particularly, for filling a blind via first, and various devices for carrying out the method. SOLUTION: The method includes a step for evacuating the via of air, a step for trapping at least a portion of a wafer and a paste with which to fill the via between two surfaces, and a step for filling the via by applying pressure to the paste. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide chip-on-chip module and a forming method belonging to the same. SOLUTION: A first semiconductor chip is connected to a second semiconductor chip. The first chip comprises a first wiring layer and a first conductive substrate in the first side and the second side of the first chip, respectively. A power supply voltage VDD is adapted so as to be electrically connected to the second side of the first chip. The second chip comprises a second wiring layer and a second conductive substrate in the first side and the second side of the second chip, respectively. A grounding voltage GND is adapted so as to be electrically connected to the second side of the second chip. The first side of the first chip is connected to the first side of the second chip. The power supply voltage VDD and the grounding voltage GND are adapted so as to supply an electric power to the first and the second chips. COPYRIGHT: (C)2003,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a resistor that has a heat sink with excellent heat conduction. SOLUTION: This heat sink includes a conduction path that has a high-thermal conductivity metal and other thermal conductors. In order that an electrical resistor may not be short-circuited to earth by this thermal resistor, a thin layer with a high-thermal conductivity electric insulator is interposed between the thermal conductor and the resistor's body. Accordingly, since heat is conducted to the heat sink in a direction in which the thermal conductor with high thermal conductivity moves away from the resistor, the resistor can pass a large amount of current. In addition to the fact that a parasitic capacitance and other electric parasitic actions that help reduce high-frequency responses from the electric resistor are lowered, various structures of a thermal conductor and heat sink are achieved through which favorable thermal conduction characteristics are obtained. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
Methods for bonding substrate surfaces, bonded substrate assemblies, and design structures for a bonded substrate assembly. Device structures (18, 19, 20, 21) of a product chip (25) are formed using a first surface (15) of a device substrate (10). A wiring layer (26) of an interconnect structure for the device structures is formed on the product chip. The wiring layer is planarized. A temporary handle wafer (52) is removably bonded to the planarized wiring layer. In response to removably bonding the temporary handle wafer to the planarized first wiring layer, a second surface (54) of the device substrate, which is opposite to the first surface, is bonded to a final handle substrate (56). The temporary handle wafer is then removed from the assembly.
Abstract:
A method of manufacturing an integrated circuit structure forms a first opening in a substrate (100; Figure 1) and lines the first opening with a protective liner. (102) The method deposits a material into the first opening (104) and forms a protective material over the substrate. The protective material includes a process control mark and includes a second opening above, and aligned with, the first opening. (108) The method removes the material from the first opening through the second opening in the protective material. (110) The process control mark comprises a recess within the protective material that extends only partially through the protective material, such that portions of the substrate below the process control mark are not affected by the process of removing the material.
Abstract:
A capacitor (180) in a semiconductor substrate (10) employs a conductive through-substrate via (TSV) (80) as an inner electrode and a columnar doped semiconductor region as an outer electrode. The capacitor (80) provides a large decoupling capacitance in a small area, and does not impact circuit density or a Si3D structural design. Additional conductive TSVs can be provided in the semiconductor substrate (10) to provide electrical connection for power supplies and signal transmission therethrough. The capacitor (180) has a lower inductance than a conventional array of capacitors having comparable capacitance, thereby enabling reduction of high frequency noise in the power supply system of stacked semiconductor chips.
Abstract:
A backside contact structure and method of fabricating the structure. The method includes: forming a dielectric isolation (250) in a substrate (100), the substrate (100) having a frontside and an opposing backside; forming a first dielectric layer (105) on the frontside of the substrate (100); forming a trench (265C) in the first dielectric layer (105), the trench (265C) aligned over and within a perimeter of the dielectric isolation (250) and extending to the dielectric isolation (250); extending the trench (265C) formed in the first dielectric layer (1 05) through the dielectric isolation (250) and into the substrate (1 00)to a depth (Dl ) less than a thickness of the substrate (1 00); filling the trench (265C) and co-planarizing a top surface of the trench (265C) with a top surface of the first dielectric layer (1 05) to form an electrically conductive through via (270C); and thinning the substrate (100) from a backside of the substrate (100) to expose the through via (270C).
Abstract:
PROBLEM TO BE SOLVED: To reduce the temperature of a hot spot of a chip by locally reducing the layer thickness of a compliant thermally conductive material on the chip. SOLUTION: In an integrated circuit package structure within MCM or SCM, a compliant thermally conductive material is applied between a heat-producing integrated circuit and a substrate attached thereto. A thinner layer of the compliant thermally conductive material is arranged between the chip and the substrate in this region after assembling, and as a result, a raised region aligned to a high power density region higher than the average on the active front surface of the chip is defined at the backside of the chip so that the temperature of the "hot spot" on the chip is reduced. In an exemplary embodiment, the substrate comprises one of a heat sink, cooling plate, heat spreader, heat pipe, heat hat, package lid, and other cooling members. COPYRIGHT: (C)2005,JPO&NCIPI