摘要:
A digital logic storage structure includes cross coupled first and second complementary metal oxide semiconductor (CMOS) inverters formed on a semiconductor substrate, the CMOS inverters including a first storage node and a second storage node that is the logical complement of the first storage node; both of the first and second storage nodes each selectively coupled to a deep trench capacitor through a switching transistor, with the switching transistors controlled by a common capacitance switch line coupled to gate conductors thereof; wherein, in a first mode of operation, the switching transistors are rendered nonconductive so as to isolate the deep trench capacitors from the inverter storage nodes and, in a second mode of operation, the switching transistors are rendered conductive so as to couple the deep trench capacitors to their respective storage nodes, thereby providing increased resistance of the storage nodes to single event upsets (SEUs).
摘要:
A digital logic storage structure includes cross coupled first and second complementary metal oxide semiconductor (CMOS) inverters formed on a semiconductor substrate, the CMOS inverters including a first storage node and a second storage node that is the logical complement of the first storage node; both of the first and second storage nodes each selectively coupled to a deep trench capacitor through a switching transistor, with the switching transistors controlled by a common capacitance switch line coupled to gate conductors thereof; wherein, in a first mode of operation, the switching transistors are rendered nonconductive so as to isolate the deep trench capacitors from the inverter storage nodes and, in a second mode of operation, the switching transistors are rendered conductive so as to couple the deep trench capacitors to their respective storage nodes, thereby providing increased resistance of the storage nodes to single event upsets (SEUs).
摘要:
A digital logic storage structure includes cross coupled first and second complementary metal oxide semiconductor (CMOS) inverters formed on a semiconductor substrate, the CMOS inverters including a first storage node and a second storage node that is the logical complement of the first storage node; both of the first and second storage nodes each selectively coupled to a deep trench capacitor through a switching transistor, with the switching transistors controlled by a common capacitance switch line coupled to gate conductors thereof; wherein, in a first mode of operation, the switching transistors are rendered nonconductive so as to isolate the deep trench capacitors from the inverter storage nodes and, in a second mode of operation, the switching transistors are rendered conductive so as to couple the deep trench capacitors to their respective storage nodes, thereby providing increased resistance of the storage nodes to single event upsets (SEUs).
摘要:
A digital logic storage structure includes cross coupled first and second complementary metal oxide semiconductor (CMOS) inverters formed on a semiconductor substrate, the CMOS inverters including a first storage node and a second storage node that is the logical complement of the first storage node; both of the first and second storage nodes each selectively coupled to a deep trench capacitor through a switching transistor, with the switching transistors controlled by a common capacitance switch line coupled to gate conductors thereof; wherein, in a first mode of operation, the switching transistors are rendered nonconductive so as to isolate the deep trench capacitors from the inverter storage nodes and, in a second mode of operation, the switching transistors are rendered conductive so as to couple the deep trench capacitors to their respective storage nodes, thereby providing increased resistance of the storage nodes to single event upsets (SEUs).
摘要:
Novel semiconductor structures and methods are disclosed for forming a buried recombination layer underneath the bulk portion of a hybrid orientation technology by implanting at least one recombination center generating element to reduce single event upset rates in CMOS devices thereabove. The crystalline defects in the buried recombination layer caused by the recombination center generating elements are not healed even after a high temperature anneal and serve as recombination centers where holes and electrons generated by ionizing radiation are collected by. Multiple buried recombination layers may be formed. Optionally, one such layer may be biased with a positive voltage to prevent latchup by collecting electrons.
摘要:
Novel semiconductor structures and methods are disclosed for forming a buried recombination layer underneath the bulk portion of a hybrid orientation technology by implanting at least one recombination center generating element to reduce single event upset rates in CMOS devices thereabove. The crystalline defects in the buried recombination layer caused by the recombination center generating elements are not healed even after a high temperature anneal and serve as recombination centers where holes and electrons generated by ionizing radiation are collected by. Multiple buried recombination layers may be formed. Optionally, one such layer may be biased with a positive voltage to prevent latchup by collecting electrons.
摘要:
Systems and methods to ensure correct operation of a semiconductor chip in the presence of ionizing radiation is disclosed. The system includes a semiconductor chip, a first radiation detection array incorporated in the semiconductor chip, and at least one additional radiation detection array incorporated in the semiconductor chip. a processor determines a region of the semiconductor chip affected by an incident radiation particle by analyzing a trajectory of the radiation particle determined from locations of sensors hit by the radiation particle in the first radiation detection array and the at least one additional radiation detection array. The processor determines whether corrective action is needed based on the region of the semiconductor chip affected by the incident radiation particle.
摘要:
A method of determining one or more transistors within a particular circuit to be respectively replaced with a hardened transistor includes: identifying, as not requiring hardening, one or more transistors; identifying, as candidates for hardening, each transistor in the circuit not previously identified as not requiring hardening; and employing the hardened transistor in place of a transistor identified as a candidate for hardening. The circuit is a latch and the transistor is an SOI CMOS FET. The transistor is also an SOI transistor. The series transistor includes first and second series-connected transistors having a shared source/drain region whereby a drain of the first series-connected transistor is merged with a source of the second series-connected transistor.
摘要:
A method of determining one or more transistors within a particular circuit to be respectively replaced with a hardened transistor includes: identifying, as not requiring hardening, one or more transistors; identifying, as candidates for hardening, each transistor in the circuit not previously identified as not requiring hardening; and employing the hardened transistor in place of a transistor identified as a candidate for hardening. The circuit is a latch and the transistor is an SOI CMOS FET. The transistor is also an SOI transistor. The series transistor includes first and second series-connected transistors having a shared source/drain region whereby a drain of the first series-connected transistor is merged with a source of the second series-connected transistor.
摘要:
Each one of a pair of CMOS transistors is formed in its own island and a gate terminal for each transistor is formed by a single, in-line conductor connecting both gate terminals together. This type of “in-line” connection achieves nearly a five-time improvement in the reduction of the ability of ionizing radiation particles to strike both transistors at the same time as compared to prior art “side-by-side” transistor stacking through use of a relatively smaller solid angle spanning the two transistors. This results in “hardening” of the transistors and improving their resistance to single event upsets and, thus, improving the soft error rate (SER) of the transistors.