Abstract: A parallel concurrent test (PCT) system is provided for performing the parallel concurrent testing of semiconductor devices. The PCT system includes a pick and place (PnP) handler for engaging and transporting the semiconductor devices along a testing plane, the PnP handler including at least one manipulator. The PCT system also includes a device under test interface board (DIB), the DIB including a broadside test socket for broadside (BS) testing of the semiconductor devices, the broadside testing using at least half of a total number of a semiconductor device pins, and a plurality of design-for-test (DFT) test sockets for DFT testing, the DFT testing using less than half of the total number of the semiconductor device pins, and a tester in electrical contact with the DIB for testing the semiconductor devices in accordance with a stepping pattern test protocol.
Abstract: A method is provided for testing a semiconductor wafer, including individual semiconductor devices located on the semiconductor wafer, using temporary counterpart sacrificial bond pads. The method includes arranging individual semiconductor devices on the semiconductor wafer in a configuration having horizontal rows of the individual semiconductor devices separated by functional horizontal scribe lanes, and having vertical columns of individual semiconductor devices separated by functional vertical scribe lanes. The method includes creating the temporary counterpart sacrificial bond pads, located in the functional horizontal scribe lanes and/or vertical scribe lanes, that are electrically connected to corresponding normal individual bond pads located on individual semiconductor devices.
Abstract: A method and system are provided for optimizing operational throughput for a semiconductor device handler having multiple stages. The method includes receiving semiconductor devices for testing at an input carrier buffer, and operating the handler in the testing of semiconductor devices. The method also includes recording operational throughput characteristics for each operational stage of the handler, and analyzing recorded operational throughput characteristics for each operational stage of the handler. Additionally, the method includes determining which operational stage of the handler has the most limiting constraint causing a lowest operational drumbeat, and adjusting operational parameters of the operational stage of the handler that has the lowest operational drumbeat to increase the operational drumbeat.
Abstract: A parallel concurrent test (PCT) system is provided for performing the parallel concurrent testing of semiconductor devices. The PCT system includes a pick and place (PnP) handler for engaging and transporting the semiconductor devices along a testing plane, the PnP handler including at least one manipulator. The PCT system also includes a device under test interface board (DIB), the DIB including a broadside test socket for broadside (BS) testing of the semiconductor devices, the broadside testing using at least half of a total number of a semiconductor device pins, and a plurality of design-for-test (DFT) test sockets for DFT testing, the DFT testing using less than half of the total number of the semiconductor device pins, and a tester in electrical contact with the DIB for testing the semiconductor devices in accordance with a stepping pattern test protocol.
Abstract: A system and method utilize a stand-alone controller for a multiplexed handler test cell in automated and robotic semiconductor test equipment for indexless tandem semiconductor testing. The stand-alone controller is configured such that functions relating to both the handler drivers and the data post-processor of the multiplexed handler tested cell are included within the stand-alone controller. The system and method also include provisions for using a virtual multiplexed handler test cell in a preliminary stage prior to actual implementation of the actual multiplexed handler test cell. This configuration permits the stand-alone controller to control the functions of the multiplexed handlers and to coordinate their activity with the tester.
Abstract: A system for testing with an automated test equipment (ATE) includes a tester having at least one test resource, a tandem handler, and a mux relay that switchably connects the test resource, via parallel connections, to either one of dual sockets at each instant of testing. The handler has first and second manipulator arms. Each arm operates as to a particular one of the respective sockets, to retrieve a next device to be tested and position the device in the socket (while testing is performed on a device in the other socket), to disposition the device from the socket once testing is completed as to the device in the socket, and thereafter repeat until all staged devices for testing have been tested (or an interruption of testing otherwise occurs). The mux relay switches between sockets in response to the tandem handler acting as a master and the tester as slave.