G01R31/2855

Testing electronic devices

A controller is switched from a first mode to a second mode, where the controller in the first mode is to manage a plurality of electronic devices collectively as a logical unit. The controller in the second mode is used to individually test the plurality of electronic devices, where the controller in the second mode allowing sending of a test command individually to a respective one of the plurality of electronic devices.

SYSTEM AND METHODS FOR ANALYZING AND ESTIMATING SUSCEPTIBILITY OF CIRCUITS TO RADIATION-INDUCED SINGLE-EVENT-EFFECTS
20180328983 · 2018-11-15 ·

Systems and methods for semiconductor design evaluation. IC layout information of a circuit design is received, and the circuit design is decomposed into smaller circuit pieces. Each circuit piece has IC layout information and a netlist. For each circuit piece, a set of strike models is selected based on the layout information and the net-list of the circuit piece and received radiation environment information. Each strike model has circuit components with voltage values corresponding to a respective particle strike. For each selected strike model of a circuit piece: a radiation susceptibility metric is determined by comparing functional results of simulation of the of the strike model with functional results of simulation of the circuit piece. For each circuit piece, a radiation susceptibility metric is determined based on the radiation susceptibility metrics generated for each selected strike model of the circuit piece.

Assessment of HCI in logic circuits based on AC stress in discrete FETs

CMOS switching devices are connected to testing equipment that applies AC to stress the CMOS switching devices. The testing equipment varies rise and fall times of drain and gate voltages, and varies offsets of the drain and gate voltages of the CMOS switching devices. The amount of hot carrier injection (HCI) within the CMOS switching devices is measured when the rise and fall times of the drain and gate voltages cross over, to establish AC HCI contribution to device degradation of the CMOS switching devices. Further, these methods can correlate the AC HCI contribution of the CMOS switching devices to CMOS logic devices based on ring oscillator (RO) degradation of ROs similarly tested or simulated, to produce AC HCI contribution for the CMOS logic devices.

Systems And Methods For Improved Delamination Characteristics In A Semiconductor Package

Systems and methods are provided for producing an integrated circuit package, e.g., an SOIC package, having reduced or eliminated lead delamination caused by epoxy outgassing resulting from the die attach process in which an integrated circuit die is attached to a lead frame by an epoxy. The epoxy outgassing may be reduced by heating the epoxy during or otherwise in association with the die attach process, e.g. using a heating device provided at the die attach unit. Heating the epoxy may achieve additional cross-linking in the epoxy reaction, which may thereby reduce outgassing from the epoxy, which may in turn reduce or eliminate subsequent lead delamination. A heating device located at or near the die attach site may be used to heat the epoxy to a temperature of 55 C.5 C. during or otherwise in association with the die attach process.

Apparatus for testing electronic devices

An apparatus is described for burn-in and/or functional testing of microelectronic circuits of unsingulated wafers. A large number of power, ground, and signal connections can be made to a large number of contacts on a wafer. The apparatus has a cartridge that allows for fanning-in of electric paths. A distribution board has a plurality of interfaces that are strategically positioned to provide a dense configuration. The interfaces are connected through flexible attachments to an array of first connector modules. Each one of the first connector modules can be independently connected to a respective one of a plurality of second connector modules, thereby reducing stresses on a frame of the apparatus. Further features include for example a piston that allows for tight control of forces exerted by terminals onto contacts of a wafer.

VOLTAGE REGULATOR
20180284821 · 2018-10-04 ·

To provide a voltage regulator capable of switching a voltage of an output terminal from an internal voltage to an external voltage while suppressing an increase in circuit scale. The voltage regulator includes a voltage output circuit configured to generate a constant internal voltage lower than an external voltage applied to an input terminal from the external voltage and supplying the constant internal voltage to an output terminal, a temperature sensing circuit configured to decrease an output voltage of an output node thereof according to a rise in temperature, an overheat detection circuit connected to the output node of the temperature sensing circuit and a test terminal, and a voltage detection circuit connected to the output node of the temperature sensing circuit and the test terminal.

System and methods for analyzing and estimating susceptibility of circuits to radiation-induced single-event-effects
10048313 · 2018-08-14 · ·

Systems and methods for semiconductor design evaluation. IC layout information of a circuit design is received, and the circuit design is decomposed into smaller circuit pieces. Each circuit piece has IC layout information and a netlist. For each circuit piece, a set of strike models is selected based on the layout information and the net-list of the circuit piece and received radiation environment information. Each strike model has circuit components with voltage values corresponding to a respective particle strike. For each selected strike model of a circuit piece: a radiation susceptibility metric is determined by comparing functional results of simulation of the of the strike model with functional results of simulation of the circuit piece. For each circuit piece, a radiation susceptibility metric is determined based on the radiation susceptibility metrics generated for each selected strike model of the circuit piece.

RELIABILITY MANAGEMENT SYSTEM AND OPERATION THEREOF
20180224499 · 2018-08-09 ·

A reliability management system and its operation method is presented. The reliability management system comprises instructions stored in a computer-readable non-transitory storage medium, with said instructions executable by one or more hardware processors communicating with the storage medium, the system comprises a reliability manager and a Reliability Test Requestor (RTR). The reliability manager receives a test equipment request from the RTR and sends corresponding test equipment information to the RTR. The RTR sends a test equipment request to the reliability manager based on product information of a test product it receives, and receives test data from a corresponding test equipment according to the test equipment information received from the reliability manager. The RTR also processes the test data to generate a test report, and determines whether the test product passed a reliability test based on the test report. This inventive concept realizes an automatic management on reliability tests.

MANUFACTURING METHOD AND PROGRAM OF SEMICONDUCTOR DEVICE
20180217203 · 2018-08-02 ·

A semiconductor device manufacturing method includes forming a plurality of semiconductor chips on a main surface of a semiconductor wafer, electrically testing each of the semiconductor chips, dicing the semiconductor wafer into individual semiconductor chips and assembling each of the semiconductor chips into a package to be a semiconductor device, subjecting the packages to a burn-in test, determining whether each of the semiconductor chips requires the burn-in test to be performed, and generating a determination model for determining whether the semiconductor chips require the burn-in test to be performed.

Integrated circuit device comprising environment-hardened die and less-environment-hardened die
10036774 · 2018-07-31 · ·

An integrated circuit device has at least one environment-hardened die and at least one less-environment-hardened die. Environment-hardened circuitry on the environment-hardened die is more resistant to the degradation when exposed to a predetermined environmental condition than the less-environment-hardened circuitry on the environment-hardened die. The dice are combined using a 3D or 2.5D integrated circuit technology. This is very useful for testing circuits at adverse environmental conditions (e.g. high temperature), or for providing circuits to operate at such conditions.