G11C29/56016

Test apparatus and test method to a memory device

A test system is disclosed. The test system includes a tester, a first voltage stabilization circuit, and a device under test (DUT). The tester generates a first operational voltage and a control signal. The first voltage stabilization circuit transmits a second operational voltage, associated with the first operational voltage, to a socket board. The DUT operates with the second operational voltage received through the socket board. The first voltage stabilization circuit is further configured to control, according to the control signal, the second operational voltage to have a first voltage level when the DUT is operating.

CARRIER BASED HIGH VOLUME SYSTEM LEVEL TESTING OF DEVICES WITH POP STRUCTURES

A testing apparatus comprises a tester comprising a plurality of racks, wherein each rack comprises a plurality of slots, wherein each slot comprises: (a) an interface board affixed in a slot of a rack, wherein the interface board comprises test circuitry and a plurality of sockets, each socket operable to receive a device under test (DUT); and (b) a carrier comprising an array of DUTs, wherein the carrier is operable to displace into the slot of the rack; and (c) an array of POP memory devices, wherein each POP memory device is disposed adjacent to a respective DUT in the array of DUTs. Further, the testing apparatus comprises a pick-and-place mechanism for loading the array of DUTs into the carrier and an elevator for transporting the carrier to the slot of the rack.

Redundancy analysis method and redundancy analysis apparatus

A redundancy analysis method of replacing a faulty part of a memory with at least one spare according to the present embodiment includes: acquiring fault information of the memory; and redundancy-allocating the fault with combinations of the spares to correspond to combination codes corresponding to the combinations of the spares, in which, the redundancy-allocating with the combination of the spare areas includes performing parallel processing on each combination of the spares.

METHODS FOR RESTRICTING READ ACCESS TO SUPPLY CHIPS
20230069877 · 2023-03-09 ·

An example method for restricting read access to content in the component circuitry and securing data in the supply item is disclosed. The method identifies the status of a read command, and depending upon whether the status disabled or enabled, either blocks the accessing of encrypted data stored in the supply chip, or allows the accessing of the encrypted data stored in the supply chip.

AUTOMATED TEST EQUIPMENT FOR TESTING SEMICONDUCTOR DEVICES

An automated test equipment (ATE) for testing semiconductor devices, the test equipment comprises a test handler, a spare part, or a contactor socket, and a semiconductor devices tester, The spare part comprises an electronic component for storing and or processing data regarding the spare part or a portion thereof, The test equipment comprises an operator terminal comprising a display or GUI and a data exchange interface which is connected or connectable to the electronic component within the spare part, for at least displaying data stored therein. The ATE further comprises a data buffer unit for buffering the data, a maintenance planning and control unit for planning and controlling maintenance actions of the test equipment, and a dedicated database residing in a control computer.

METHOD AND APPARATUS FOR REPAIRING FAIL LOCATION
20220334913 · 2022-10-20 ·

Embodiments provide a method and an apparatus for repairing a fail location. When repairing a fail location of a wafer, a fail bit in a wafer to be processed may be first determined, and a target potential fail bit associated with the fail bit may be determined based on a potential mining rule included in a mining rule library.

Apparatus for testing semiconductor device and method of testing thereof
11626184 · 2023-04-11 · ·

An apparatus for performing thermal testing of a memory device and a method of thermally testing the memory device. The apparatus includes a tester; an interface board disposed over the tester and configured to receive the semiconductor device and connect the semiconductor device to the tester; a shield disposed over the interface board and including a recess; a gas-supplying unit including a conduit extending through the shield and accessible to the recess; a temperature-sensing device disposed within the recess; and a controller configured to control and communicate with the tester, the gas-supplying unit and the temperature-sensing device.

Multiple name space test systems and methods
11650893 · 2023-05-16 · ·

Presented embodiments facilitate efficient and effective flexible implementation of different types of testing procedures in a test system. In one embodiment, a multiple-name-space testing system comprises a load board, testing electronics, and a namespace testing tracker. The load board is configured to couple with a plurality of devices under test (DUTs). The testing electronics are configured to test the plurality of DUTs, wherein the testing electronics are coupled to the load board. The controller is configured to direct testing of multiple-name-spaces across the plurality of DUTs at least in part in parallel. The controller can be coupled to the testing electronics. The namespace testing tracker is configured to track testing of the plurality of DUTs, including the testing of the multiple-name-spaces across the plurality of DUTs at least in part in parallel. In one embodiment, the DUTs are NVMe SSD devices.

Localized onboard socket heating elements for burn-in test boards

A burn-in board for testing the operational integrity of memory devices includes local heating elements for each memory device under test. Each socket on the burn-in board may include a pair of opposed latch heads which move between open positions allowing a memory device to be mounted in the socket, and closed positions where the latch heads rest against the memory device to secure the device in the socket. Local heating elements may be integrated into the latch heads to ensure even heating of each memory device in the burn-in board.

Defect localization in embedded memory

A system and method for defect localization in embedded memory are provided. Embodiments include a system including automated testing equipment (ATE) interfaced with a wafer probe including a diagnostic laser for stimulating a DUT with the diagnostic laser at a ROI. The ATE is configured to simultaneously perform a test run at a test location of the DUT with a test pattern during stimulation of the DUT. Failing compare vectors of a reference failure log of a defective device are stored. A first profile module is configured to generate a first 3D profile from each pixel of a reference image of the defective device. A second profile module is configured to generate a second 3D profile from each pixel of the ROI of the DUT. A cross-correlation module is configured to execute a pixel-by-pixel cross-correlation from the first and second 3D profiles and generate an intensity map corresponding to a level of correlation between the DUT and defective device.