摘要:
A semiconductor device includes a plurality of core chips and an interface chip that controls the core chips. Each of the core chips and the interface chip includes plural through silicon vias that penetrate a semiconductor substrate and plural pads respectively connected to the through silicon vias. The through silicon vias include a through silicon via of a power source system to which a power source potential or a ground potential is supplied, and a through silicon via of a signal system to which various signals are supplied. Among the pads, at least an size of a pad connected to the through silicon via of the power source system is larger than a size of a pad connected to the through silicon via of the signal system. Therefore, a larger parasitic capacitance can be secured.
摘要:
A semiconductor device includes a plurality of core chips and an interface chip that controls the core chips. Each of the core chips and the interface chip includes plural through silicon vias that penetrate a semiconductor substrate and plural pads respectively connected to the through silicon vias. The through silicon vias include a through silicon via of a power source system to which a power source potential or a ground potential is supplied, and a through silicon via of a signal system to which various signals are supplied. Among the pads, at least an size of a pad connected to the through silicon via of the power source system is larger than a size of a pad connected to the through silicon via of the signal system. Therefore, a larger parasitic capacitance can be secured.
摘要:
To include one or a plurality of internal signal lines that electrically connects an interface chip to a core chip. The interface chip includes a first circuit that outputs a current to an internal wiring and the core chip includes a second circuit that outputs a current to the first internal signal line. The interface chip includes a determination circuit that has a first input terminal connected to the internal wiring through which the current outputted by the first circuit flows and a second input terminal connected to an end of the first internal signal line in the interface chip, and outputs a voltage according to a potential difference between a voltage of the first input terminal and a voltage of the second input terminal.
摘要:
To include one or a plurality of internal signal lines that electrically connects an interface chip to a core chip. The interface chip includes a first circuit that outputs a current to an internal wiring and the core chip includes a second circuit that outputs a current to the first internal signal line. The interface chip includes a determination circuit that has a first input terminal connected to the internal wiring through which the current outputted by the first circuit flows and a second input terminal connected to an end of the first internal signal line in the interface chip, and outputs a voltage according to a potential difference between a voltage of the first input terminal and a voltage of the second input terminal.
摘要:
A semiconductor memory device has a plurality of core chips and an interface chip, whose specification can be easily changed, while suppressing the degradation of its reliability. The device has an interposer chip. First internal electrodes connected to core chips are formed on the first surface of the interposer chip. Second internal electrodes connected to an interface chip and third internal electrodes connected to external electrodes are formed on the second surface of the interposer chip. The interface chip can be mounted on the second surface of the interposer chip whenever desired. Therefore, the memory device can have any specification desirable to a customer, only if an appropriate interface chip is mounted on the interposer chip, as is demanded by the customer. Thus, the core chips do not need to be stocked in great quantities in the form of bare chips.
摘要:
As a defective contact recovery elements, a stacked semiconductor device include a parallel arrangement system in which signal paths are multiplexed, and a defective contact recovery circuit operable to switch a signal path into an auxiliary signal path. The parallel arrangement system is used in a case where the number of signals is small and a very high speed operation is required because of a serial data transfer. The defective contact recovery circuit is used in a case where the number of signals is large because of a parallel data transfer.
摘要:
In a three-dimensional stacked memory having through electrodes, no optimal layer arrangement, bank arrangement, control methods have been established, and thus optimal methods are desired to be established. A stacked memory includes memory core layers, an interposer, and an IF chip. By stacking memory core layers having the same arrangement, it is possible to cope with both of no-oparity operation and parity operation. Further, bank designation irrespective of the number of stacks of the memory core layers can be achieved by assignment of a row address and a bank address. Further, the IF chip has refresh counters for performing a refresh control of the stacked memory. This arrangement provides a stacked memory including stacked memory core layers having through electrodes.
摘要:
A memory module is provided with a resistor serving as an impedance adjuster which is connected directly or indirectly to an output terminal of an output transistor of a C/A register. The resistor adjusts the output impedance of the C/A register viewed from an input terminal of a C/A bus in such a manner that the output impedance becomes substantially constant within an operating voltage range of an internal signal output from the C/A register. The memory module is further provided with a capacitor serving as a rise time/fall time adjuster which adjusts rise time and fall time of the internal signal to specific values such that satisfactory waveforms are obtained.
摘要:
A semiconductor device comprising a plurality of semiconductor chips and a plurality of through-line groups is disclosed. Each of the through-line groups consists of a unique number of through-lines. The numbers associated with the through-line groups are mutually coprime to each other. When one of the through-lines is selected for the each through-line group, one of the semiconductor chip is designated by a combination of the selected through-lines of the plurality of the through-line groups.
摘要:
A stacked semiconductor device includes: an internal circuit; a through electrode provided to penetrate through a semiconductor substrate; a test wiring to which a predetermined potential different from a substrate potential is supplied at a time of a test; a first switch arranged between the through electrode and the internal circuit; a second switch arranged between the through electrode and the test wiring; and a control circuit that exclusively turns on the first and the second switches. Thereby, it becomes possible to perform an insulation test in a state that the through electrode and the internal circuit are cut off. Thus, even when a slight short-circuit that does not lead to a current defect occurs, the short circuit can be detected.