摘要:
A method includes extracting a first netlist from a first layout of a semiconductor circuit and estimating layout-dependent effect data based on the first netlist. A first simulation of the semiconductor circuit is performed based on the first netlist using an electronic design automation tool, and a second simulation of the semiconductor circuit is performed based on a circuit schematic using the electronic design automation tool. A weight and a sensitivity of the at least one layout-dependent effect are calculated, and the first layout of the semiconductor circuit is adjusted based on the weight and the sensitivity to provide a second layout of the semiconductor circuit. The second layout is stored in a non-transient storage medium.
摘要:
A method includes creating a technology file including data for an integrated circuit including at least one die coupled to an interposer and a routing between the at least one die and the interposer, b) creating a netlist including data approximating at least one of capacitive or inductive couplings between conductors in the at least one die and in the interposer based on the technology file, c) simulating a performance of the integrated circuit based on the netlist, d) adjusting the routing between the at least one die and the interposer based on the simulation to reduce the at least one of the capacitive or the inductive couplings, and e) repeating steps c) and d) to optimize the at least one of the capacitive or inductive couplings.
摘要:
A method includes creating a technology file including data for an integrated circuit including at least one die coupled to an interposer and a routing between the at least one die and the interposer, b) creating a netlist including data approximating at least one of capacitive or inductive couplings between conductors in the at least one die and in the interposer based on the technology file, c) simulating a performance of the integrated circuit based on the netlist, d) adjusting the routing between the at least one die and the interposer based on the simulation to reduce the at least one of the capacitive or the inductive couplings, and e) repeating steps c) and d) to optimize the at least one of the capacitive or inductive couplings.
摘要:
A method includes approximating a physical characteristic of a semiconductor substrate with a frequency-dependent circuit, and creating a technology file for the semiconductor substrate based on the frequency-dependent circuit. The physical characteristic of the semiconductor substrate identified by one of an electromagnetic simulation or a silicon measurement. The technology file is adapted for use by an electronic design automation tool to create a netlist for the semiconductor substrate and is stored in a non-transient computer readable storage medium.
摘要:
A method includes providing a layout of an integrated circuit design, and generating a plurality of double patterning decompositions from the layout, with each of the plurality of double patterning decompositions including patterns separated to a first mask and a second mask of a double patterning mask set. A maximum shift between the first and the second masks is determined, wherein the maximum shift is a maximum expected mask shift in a manufacturing process for implementing the layout on a wafer. For each of the plurality of double patterning decompositions, a worst-case performance value is simulated using mask shifts within a range defined by the maximum shift. The step of simulating the worst-case performance includes calculating capacitance values corresponding to mask shifts, and the capacitance values are calculated using a high-order equation or a piecewise equation.
摘要:
A method includes (a) generating a set of samples, each sample representing a respective set of semiconductor fabrication process variation values; (b) selecting a first subset of the set of samples based on a probability of the set of semiconductor fabrication process variation values corresponding to each sample; (c) estimating a yield measure for a semiconductor product based on relative sizes of the set of samples and the first subset, without performing a Monte Carlo simulation; and (d) outputting an indication that a design modification is appropriate, if the estimated yield measure is below a specification yield value.
摘要:
A method includes providing a layout of an integrated circuit design, and generating a plurality of double patterning decompositions from the layout, with each of the plurality of double patterning decompositions including patterns separated to a first mask and a second mask of a double patterning mask set. A maximum shift between the first and the second masks is determined, wherein the maximum shift is a maximum expected mask shift in a manufacturing process for implementing the layout on a wafer. For each of the plurality of double patterning decompositions, a worst-case performance value is simulated using mask shifts within a range defined by the maximum shift. The step of simulating the worst-case performance includes calculating capacitance values corresponding to mask shifts, and the capacitance values are calculated using a high-order equation or a piecewise equation.
摘要:
In a semiconductor device design method performed by at least one processor, first and second electrical components are extracted from a layout of a semiconductor device. The semiconductor device has a semiconductor substrate and the first and second electrical components in the semiconductor substrate. Parasitic parameters of a coupling in the semiconductor substrate between the first and second electrical components are extracted using a first tool. Intrinsic parameters of the first and second electrical components are extracted using a second tool different from the first tool. The extracted parasitic parameters and intrinsic parameters are combined into a model of the semiconductor device. The parasitic parameters of the coupling are extracted based on a model of the coupling included in the second tool.
摘要:
Among other things, one or more techniques and/or systems are provided for modeling a discrete device as a macro device. That is, the discrete device can comprise one or more parasitic elements, such as parasitic resistances and/or capacitances. Because values of the parasitic elements are unknown during pre-simulation of the discrete device, the discrete device can be modeled as a macro device, which can be used during pre-simulation to take into account the parasitic elements. For example, specified parameters, such as channel length, can be used to obtain a set of RC values that specify predicted values for the one or more parasitic elements of the discrete device. The discrete device can be modeled as the macro device using the set of RC values. In this way, the macro device can be used during pre-simulation to take into account the parasitic effects of parasitic elements of the discrete device.
摘要:
Among other things, one or more techniques and/or systems are provided for modeling a discrete device as a macro device. That is, the discrete device can comprise one or more parasitic elements, such as parasitic resistances and/or capacitances. Because values of the parasitic elements are unknown during pre-simulation of the discrete device, the discrete device can be modeled as a macro device, which can be used during pre-simulation to take into account the parasitic elements. For example, specified parameters, such as channel length, can be used to obtain a set of RC values that specify predicted values for the one or more parasitic elements of the discrete device. The discrete device can be modeled as the macro device using the set of RC values. In this way, the macro device can be used during pre-simulation to take into account the parasitic effects of parasitic elements of the discrete device.