Abstract:
In accordance with one embodiment, a method for testing a plurality of electronic components is provided, including subdividing the plurality of electronic components into a plurality of first groups and subdividing the plurality of electronic components into a plurality of second groups. The method may further include measuring, for each first group, an electrical parameter of an interconnection of the components of the first group; measuring, for each second group, an electrical parameter of an interconnection of the components of the second group, and determining which electronic components of the plurality of electronic components have a predefined property, on the basis of the result of the measurement of the electrical parameter for the first groups and on the basis of the result of the measurement of the electrical parameter for the second groups.
Abstract:
A method of forming a temporary test structure for device fabrication is provided. The method is particularly useful for electrically testing conductive interconnects during controlled collapse chip connections (C4) fabrication and/or through-silicon vias (TSVs) during interposer fabrication. The method includes providing a substrate containing a plurality of electrically conductive interconnects extending vertically to top surface of the substrate. A temporary test structure is formed to connect the plurality of interconnects and for electrical testing. The suitable material for the temporary test structure is TiW for a single layer structure, or Cu or Cu alloy over Ti or TiW for a bilayer structure with thickness in a range of about 20 nm to 1200 nm. Excimer laser ablation can be used to form the temporary test structure. Electrical testing is performed on the substrate by probing at different test locations on the temporary test structure. All or part of the temporary test structure is removed so as not to affect product performance, and the substrate can be further processed with normal processes. The temporary test structure may contain electrical test pads which provide a way to make temporary connections to small interconnect landings or features at extreme tight pitch to fan them out to testable pads sizes and pitches.
Abstract:
A method for maintaining a contact of a connection jig for connecting between a target object to be subjected to an electrical test and a testing apparatus configured to conduct the electrical test on the target object includes: detecting a change in voltage upon supply of power for the electrical test to a test point on the target object through the contact; and issuing maintenance information indicating the contact is abnormal, upon detection of a portion where the voltage does not successively rise.
Abstract:
Among other things, one or more techniques or systems for evaluating a tiered semiconductor structure, such as a stacked CMOS structure, for misalignment are provided. In an embodiment, a connectivity test is performed on vias between a first layer and a second layer to determine a via diameter and a via offset that are used to evaluate misalignment. In an embodiment, a connectivity test for vias within a first layer is performed to determine an alignment rotation based upon which vias are connected through a conductive arc within a second layer or which vias are connected to a conductive pattern out of a set of conductive patterns. In this way, the via diameter, the via offset, or the alignment rotation are used to evaluate the tiered semiconductor structure, such as during a stacked CMOS process, for misalignment.
Abstract:
Systems and methods for connectors with insertion counters are provided. In one embodiment, a connector comprises: an interface configured to interface with a corresponding interface of a port to communicate signals between the port and a cable attached to the connector; at least one switch configured to change from a first state to a second state when the connector is inserted into the port; and a microcontroller configured to record insertion events, wherein the microcontroller increments an insertion count stored within the microcontroller when the at least one switch transitions from the first state to the second state.
Abstract:
A method of forming and testing an interposer includes forming vias in a semiconductor material of a wafer having a front side and a back side. The method further includes disposing an electrically conductive layer on the front side of the wafer such that the layer is electrically connected to the vias. The method also includes forming electrically conductive pads on the front side of the wafer, wherein each electrically conductive pad is electrically connected to the electrically conductive layer. The method further includes forming electrically conductive bumps on the back side of the wafer, wherein each electrically conductive bump is electrically connected to at least one via. The method also includes testing electrical connectivity from a first bump to a second bump of the electrically conductive bumps.
Abstract:
A receiver includes an internal antenna installed on a substrate and capable of receiving a wireless signal, and an external antenna connected to a connector, which is arranged on the substrate, and capable of receiving the wireless signal. A demodulator is arranged on the substrate and demodulates the wireless signals received through the internal antenna and the external antenna. An applying circuit is arranged on the substrate and applies a voltage to the external antenna via the connector. A disconnection detector is arranged on the substrate and detects whether the external antenna is disconnected based on a voltage or current applied by the applying circuit. The internal antenna forms a part of the applying circuit.
Abstract:
Electronic test set embodiments and related methods are provided that can include a variety of safety components and/or processes which permit expandable or scalable automated testing of different types of equipment with or without installed sensitive, dangerous, vulnerable or expendable equipment. Embodiments can programmably or interface share measuring systems using expandable programmable interface systems that can scalably test a large number of components or electrical channels or bus lines. Embodiments can include multiple circuit board slot connectors adapted to receive programmable relay circuit cards that can selectively couple individual pins on ETS interface structures (e.g., cable connectors) to selected test equipment. Programmable relay circuit cards can be added to the ETS based on how many channels or bus connections are needed to interface with a system under test.
Abstract:
A coaxial connector including a connector main body is formed of an upper housing and a lower housing. An outer conductor includes a circular cylinder portion surrounding the periphery of a hole of the connector main body and configured to be inserted into an outer conductor of a mating coaxial connector. A main body portion is provided on the connector main body, and a fixation portion that is extended from the main body portion so as to sandwich the connector main body along with the main body portion. A fixed terminal is anchored to the connector main body. A movable terminal includes a fixation portion anchored to the connector main body, and a plate spring that extends from the fixation portion toward the fixed terminal and overlaps with the fixation portion at tip ends of the plate spring.
Abstract:
Circuit boards for an electronic device are described. In one implementation, the circuit board includes at least two holes at two locations on the circuit board. Each of the at least two holes has a conductive contact coupled to a voltage source through a resistor. The circuit board includes a microcontroller programmed to measure voltages at conductive contacts of the at least two holes, and determine a position of the circuit board, when positioned on a conductive chassis of the electronic device, based on the measured voltages. The position of the circuit board may be one of a first end and a second end, and in between the first end and the second end, of the conductive chassis.