Abstract:
A method for manufacturing and for testing an integrated circuit, including the steps of forming, on the upper portion of the integrated circuit (1), a passivation layer (19) comprising openings at the level of metal tracks (17) of the last interconnect stack of the integrated circuit; forming, in the openings, first pads (11) connected to second pads (13) formed on the passivation layer by conductive track sections, the first pads being intended for the connection of the integrated circuit; testing the integrated circuit by bringing test tips in contact with the second pads; and eliminating at least a portion of at least one of the conductive track sections.
Abstract:
An RF amplifier comprising first and second branches (205, 206) coupled in parallel between first and second supply voltage terminals,and a differential pair including first and second transistors (207, 208) each having first and second main current terminals, the second main current terminal of the first transistor being coupled by a first capacitor (228, 226) to the first main current terminal of the second transistor, and the second main current terminal of the second transistor being coupled by a second capacitor (226, 228) to the first main current terminal of the first transistor, wherein the first branch includes a first resistor (213, 302) coupled between the first main current terminal of the first transistor and the second capacitor, and the second branch comprises a second resistor (221, 304) coupled between the first main current terminal of the second transistor and the first capacitor.
Abstract:
The invention relates to a method for an improved checking of repeatability and reproducibility of a measuring chain, in particular for the quality control by means of the semiconductor device testing, wherein testing steps are provided for multiple and different devices to be subjected to measurement through a measuring system comprising at least one concatenation of measuring units between a testing apparatus (ATE) and each device to be subjected to measurement. Advantageously, the method comprises the following steps: checking repeatability and reproducibility of each type of unit that forms part of the measuring chain of the concatenation; then making a correlation between the various measuring chains as a whole to check repeatability and reproducibility, using a corresponding device subjected to measurement.
Abstract:
A method for transmitting messages from first units of an integrated circuit to at least one second unit of the integrated circuit. The first units generate first digital messages and transform them into second digital messages obtained by application of an orthogonal or quasi-orthogonal transformation to the first messages. The second messages of the first units are added up and transmitted to the second unit.
Abstract:
Electronic modules (8) are transported with respect to equipment for manipulating and testing electronic modules. The transport is formed from a thin support (1) having openings (3) for receiving electronic modules. A locating mechanism associated with the thin support serves to locate the support relative to transport and testing equipment. A mechanism (4) is further provided for holding the received electronic modules within the openings during transport and testing.
Abstract:
A surface-mounted shielded multicomponent assembly, comprising a wafer (1) on which several electronic components (2, 3, 4) are assembled; an insulating layer (30) conformally deposited on the structure with a thickness smaller than the height of the electronic components, comprising at least one opening (31) emerging on a contact (32) of said wafer; a conductive shielding layer (35) covering the insulating layer and said at least one opening; and a resin layer (6) covering the conductive layer.
Abstract:
A semiconductor device includes at least one first component (5) (for example, a first integrated circuit), having a front face provided with electrical connection pads. The first component is embedded in a support layer (2) is a position such that the front face of the first component is not covered and lies parallel to a first face of the support layer. An intermediate layer (8) is formed on the front face of the first component and on the first face of the support layer. An electrical connection network (9) within the intermediate layer selectively connects to the electrical connection pads of the first component. The device further includes at least one second component (11) (for example, a second integrate circuit, having one face placed above the intermediate layer and provided with electrical connection pads selectively connected to the electrical connection network. Electrical connection vias (17) pass through the support layer and selectively connect the electrical connection network to an external electrical connection formed on a second face of the support layer.
Abstract:
A method for estimating parameters of a system for spreading the spectrum of a first periodic signal according to a modulation period. An embodiment comprises the steps of sampling the first signal by means of a second periodic signal, of determining based on the sampling result each occurrence where the first and second signals are synchronous, of incrementing a first counter at each sampling, the first counter being reset at each said occurrence, of storing at each said occurrence the last value of the first counter before resetting, of providing a third periodic signal at a first level when said last value is greater than a threshold and at a second level when said last value is smaller than the threshold, and of determining the modulation period based on the period of the third signal.