摘要:
A method of mounting an electronic component on a substrate includes forming at least one trench in a surface of the substrate. The trenches formed in the substrate reduce a stiffness of the substrate, which provides less resistance to shear. Accordingly, the trenches reduce the amount of strain on the joints, which mount the electronic component to the substrate, which enhances the life of the joints.
摘要:
A method for characterizing thermomechanical properties of an organic substrate is provided. The method includes the steps of: receiving an image of the organic substrate, the image including a geometric description of the plurality of circuit layers of the substrate; selecting a given one of the plurality of circuit layers for processing; converting the image to a two-dimensional finite element model (FEM) image of the given one of the circuit layers; determining at least one of a coefficient of thermal expansion (CTE), modulus and Poisson's ratio of the FEM image of the given one of the circuit layers; repeating the steps of selecting a given one of the plurality of circuit layers, converting the image to a two-dimensional FEM image, and determining at least one of a CTE, modulus and Poisson's ratio of the FEM image for all of the plurality of circuit layers corresponding to at least a portion of the organic substrate; and constructing a three-dimensional representation of at least a portion of the organic substrate including the plurality of circuit layers as a function of at least one of the CTE, modulus and Poisson's ratio of each of the plurality of circuit layers.
摘要:
A servo control system micro-electromechanical systems (MEMS)-based motion control system (and method therefor), includes a motion generator having an inherent stiffness component.
摘要:
A servo control system micro-electromechanical systems (MEMS)-based motion control system (and method therefor), includes a motion generator having an inherent stiffness component.
摘要:
A method of mounting an electronic component on a substrate includes forming at least one trench in a surface of the substrate. The trenches formed in the substrate reduce a stiffness of the substrate, which provides less resistance to shear. Accordingly, the trenches reduce the amount of strain on the joints, which mount the electronic component to the substrate, which enhances the life of the joints.
摘要:
A method and apparatus for adaptive resonance cancellation in a rotating storage system, includes designing a set of digitally selectable optimum resonance cancellation filters, generating a series of excitation signals for injection into the filters, generating a characteristic resonance frequency based on the excitation signals, and computing an address pointer corresponding to the resonance frequency, to select an optimum resonance cancellation filter.
摘要:
A method of characterizing an organic substrate including a plurality of circuit layers is provided includes the steps of: receiving an image of the organic substrate, the image including a geometric description of the circuit layers of the substrate; segmenting the substrate into multiple processing regions based, at least in part, on geometric coordinates of circuit structures defined in the image of the substrate; generating a circuit layer image corresponding to a selected one of the processing regions of the substrate; identifying one or more geometric features in the circuit layer image; estimating at least one thermomechanical property of the circuit layer image as a function of the identified geometric features; repeating the steps of receiving an image, generating a circuit layer image, identifying one or more geometric features in the circuit layer image, and estimating at least one thermomechanical property of the circuit layer image until all circuit layers in the substrate have been processed; and generating a 3-D representation of the selected one of the processing regions of the substrate including the plurality of circuit layer images as a function of the at least one thermomechanical property of each of the plurality of circuit layer images.
摘要:
A method of mounting an electronic component on a substrate includes forming at least one trench in a surface of the substrate. The trenches formed in the substrate reduce a stiffness of the substrate, which provides less resistance to shear. Accordingly, the trenches reduce the amount of strain on the joints, which mount the electronic component to the substrate, which enhances the life of the joints.
摘要:
A microelectronic device is made of a semiconductor substrate, a heat generating component in a layer thereof, and a body within the remaining semiconductor substrate. The body is made of materials which have a high thermal inertia and/or thermal conductivity. When high thermal conductivity materials are used, the body acts to transfer the heat away from the substrate to a heat sink.