摘要:
Multiple embodiments are disclosed for enhancing security and preventing hacking of a flash memory device. The embodiments prevent malicious actors from hacking a flash memory chip to obtain data that is stored within the chip. The embodiments include the use of fault detection circuits, address scrambling, dummy arrays, password protection, improved manufacturing techniques, and other mechanisms.
摘要:
A semiconductor die is provided with an internally programmable router to assign signal paths to select connection points. A switching matrix incorporating at least one antifuse is utilized to selectively route signal paths on the semiconductor die. The chips can then be used individually, for example to reconfigure chip pin assignments to operate in a plurality of different socket layouts, or where features or controls of a chip are selectively enabled or disabled. A further alternative involves programming a first chip, then stacking piggyback, or one on top of the other, the first chip onto a second chip. The contact pins are electrically coupled together, thus avoiding the need for external frames and pin rerouting schemes to form stacked chips. In the stacked chip configuration, control pins are rerouted to align with unused pins on the chip stacked against.
摘要:
A semiconductor die is provided with an internally programmable router to assign signal paths to select connection points. A switching matrix incorporating at least one antifuse is utilized to selectively route signal paths on the semiconductor die. The chips can then be used individually, for example to reconfigure chip pin assignments to operate in a plurality of different socket layouts, or where features or controls of a chip are selectively enabled or disabled. A further alternative involves programming a first chip, then stacking piggyback, or one on top of the other, the first chip onto a second chip. The contact pins are electrically coupled together, thus avoiding the need for external frames and pin rerouting schemes to form stacked chips. In the stacked chip configuration, control pins are rerouted to align with unused pins on the chip stacked against.
摘要:
A device includes a semiconductor substrate, a first penetrating electrode (TSV_0) penetrating through the semiconductor substrate, a first test pad (PAD_0), and a first tri-state buffer (TD_0) coupled between the first penetrating electrode and the first test pad. The first tri-state buffer receives a buffer control signal at a control terminal thereof. The device further includes a buffer control circuit (BC) supplying the buffer control signal to the first tri-state buffer.
摘要:
A method is disclosed, the method comprising initiating a test on a computer readable memory comprising a first input and a first output, the computer readable memory providing output data associated with the test; selecting to receive the output data from one of a first register and a second register the first register comprising a second input and a second output, the second output coupled to the first input of the computer readable memory, and the second register comprising a third input and a third output, the third input coupled to the first output of the computer readable memory; receiving data during a write operation at a first input of a first multiplexer, the first multiplexer comprising a fourth output coupled to the second input of the first register; and receiving data during a test mode write operation at a second input of the first multiplexer, wherein a third input of the first multiplexer is coupled to the first output of the computer readable memory.
摘要:
The present disclosure provides semiconductor devices and methods, systems, and apparatus for testing and operating the same. A semiconductor memory device includes data storage elements and a repair circuit. The data storage elements include primary data storage elements and one or more redundant data storage elements, the primary data storage elements having respective addresses for memory access operations. The repair circuit is programmable by another semiconductor device separate from the memory device to recognize a malfunctioning address of the primary data storage elements and the programmed repair circuit is configured to reroute memory access from a primary data storage element having the recognized malfunctioning address to a corresponding redundant data storage element.
摘要:
A semiconductor die is provided with an internally programmable router to assign signal paths to select connection points. A switching matrix incorporating at least one antifuse is utilized to selectively route signal paths on the semiconductor die. The chips can then be used individually, for example to reconfigure chip pin assignments to operate in a plurality of different socket layouts, or where features or controls of a chip are selectively enabled or disabled. A further alternative involves programming a first chip, then stacking piggyback, or one on top of the other, the first chip onto a second chip. The contact pins are electrically coupled together, thus avoiding the need for external frames and pin rerouting schemes to form stacked chips. In the stacked chip configuration, control pins are rerouted to align with unused pins on the chip stacked against.
摘要:
A method for testing an integrated circuit, comprising: capturing multiple test values in scan chains of a circuit-under-test, the test values being associated with a circuit response to a test pattern; clocking the test values out of the scan chains and into a compactor; producing sets of two or more output values in the compactor, each set comprising all values produced in the compactor at least partially determined by a respective test value; and outputting at least one of the sets from the compactor over at least two clock cycles and before all of the test values captured in the scan chain and associated with the circuit response to the test pattern have been clocked into the compactor.