Abstract:
A measuring apparatus including a first chip, a first circuit layer, a first heater, a first stress sensor and a second circuit layer is provided. The first chip has a first through silicon via, a first surface and a second surface opposite to the first surface. The first circuit layer is disposed on the first surface. The first heater and the first stress sensor are disposed on the first surface and connected to the first circuit layer. The second circuit layer is disposed on the second surface. The first heater comprises a plurality of first switches connected in series to generate heat.
Abstract:
A monitoring method for Through-Silicon Vias (TSVs) of a three-dimensional integrated circuit (3D IC) is provided, wherein the 3D IC includes a plurality of TSVs, and the method includes: providing a plurality of inverters; connecting the inverters with the TSVs as a circuit; enabling the circuit to oscillate; measuring an output signal on an output end of one of the inverters; and determining the characteristic of TSVs of the 3D IC based on the output signal.
Abstract:
A light-emitting diode device includes: a substrate; a light-emitting layered structure formed on the substrate; a multi-functional layer having a first main portion and formed on the light-emitting layered structure for spreading current laterally and for reflecting light emitted from the light-emitting layered structure; and first and second electrodes electrically coupled to the light-emitting layered structure. The first electrode is formed on the light-emitting layered structure and has a first electrode main part. The first main portion of the multi-functional layer is aligned below and is provided with a size larger than that of the first electrode main part.
Abstract:
A monitoring method for Through-Silicon Vias (TSVs) of a three-dimensional integrated circuit (3D IC) is provided, wherein the 3D IC includes a plurality of TSVs, and the method includes: providing a plurality of inverters; connecting the inverters with the TSVs as a circuit; enabling the circuit to oscillate; measuring an output signal on an output end of one of the inverters; and determining the characteristic of TSVs of the 3D IC based on the output signal.
Abstract:
A memory device is provided. The device comprises a sense amplifier having a cell input terminal and a reference input terminal, a first sub-array coupled to the cell input terminal through a first switch and coupled to the reference input terminal through a second switch, a second sub-array coupled to the cell input terminal through a third switch and coupled to the reference input terminal through a fourth switch, and a reference cell array coupled between the second switch and the fourth switch and coupled to the reference input terminal.
Abstract:
A polysilicon sensor is described which can be incorporated onto a silicon wafer containing integrated circuits for the purpose of detecting and monitoring electromigration(EM) in metal test stripes representative of the interconnection metallurgy used by the integrated circuits. The sensor capitalizes on the property of silicon whereby a small increase in temperature causes a large increase in carrier concentration. In this regard, the local temperature rise of an adjacent metal line undergoing EM failure manifests itself as a decrease in resistance of the sensor. The sensor is particularly suited for testing multi-level metallurgies such as those having an aluminum alloy sandwiched between metallic layers such as those used for diffusion barriers and anti-reflective coatings. Its fabrication is compatible with conventional MOSFET processes which use a self-aligned polysilicon gate. It can be particularly useful when built into the wafer kerf area or into a manufacturing test site(MTS) where it can be used to qualify the metallization of a particular job. Structures built into the wafer kerf can be tested immediately after metallization while those built into MTS chips can be reserved for long term reliability testing.
Abstract:
A polysilicon sensor is described which can be incorporated onto a silicon wafer containing integrated circuits for the purpose of detecting and monitoring electromigration(EM) in metal test stripes representative of the interconnection metallurgy used by the integrated circuits. The sensor capitalizes on the property of silicon whereby a small increase in temperature causes a large increase in carrier concentration. In this regard, the local temperature rise of an adjacent metal line undergoing EM failure manifests itself as a decrease in resistance of the sensor. The sensor is particularly suited for testing multi-level metallurgies such as those having an aluminum alloy sandwiched between metallic layers such as those used for diffusion barriers and anti-reflective coatings. Its fabrication is compatible with conventional MOSFET processes which use a self-aligned polysilicon gate. It can be particularly useful when built into the wafer kerf area or into a manufacturing test site(MTS) where it can be used to qualify the metallization of a particular job. Structures built into the wafer kerf can be tested immediately after metallization while those built into MTS chips can be reserved for long term reliability testing.
Abstract:
A light emitting diode module includes a substrate, at least two spaced apart light emitting diodes formed on the substrate, an insulating layer, and an electrically conductive layer. Each of the light emitting diodes includes a light emitting unit, an n-electrode, and a p-electrode. The light emitting unit has first and second portions. The first portion has an n-type top face and a first stepped side. The second portion has a p-type top face and a second stepped side. The insulating layer is formed on the n-type top face and the first stepped side of the first portion of one of the light emitting diodes, and the second stepped side and the p-type top face of the second portion of the other one of the light emitting diodes. The electrically conductive layer is formed on the insulating layer. A method of making the light emitting diode module is also disclosed.
Abstract:
An electrostatic discharge (ESD) structure for a 3-dimensional (3D) integrated circuit (IC) through-silicon via (TSV) device is provided. The ESD structure includes a substrate, a TSV device which is formed through the substrate and is equivalent to a resistance-inductance-capacitance (RLC) device, and at least one ESD device which is disposed in the substrate and electrically connected to one end of the TSV device. The ESD structure can protect the 3D IC TSV device.
Abstract:
A memory with improved write current is provided, including a bit line, a write switch and a control circuit. The write switch is coupled between a voltage source and the bit line, and has a control terminal. Based on a bit line select signal, the control circuit controls the electric conductance of the write switch and discharges/charges the parasitic capacitors of the write switch. The voltage source is turned on after the control terminal of the write switch reaches a pre-determined voltage level.