Charge-coupled devices having efficient charge transfer rates
View Patent ↗A camera includes a charge-coupled device having a substrate or well of a first conductivity type; a buried channel of a second conductivity type; a dielectric disposed on the substrate; six gates disposed on the dielectric that are space oriented sequentially 1 through 6 in which six gates, in a first mode, receives signals in which alternating gates receive substantially complimentary clock cycles, and in a second mode the gates receive signals in which gates 1 and 4 receive complimentary clock cycles and gates 2 and 5 are approximately held at a first constant voltage and gates 3 and 6 are approximately held at a second constant voltage.
1. A charge-coupled device comprising:
(a) a substrate or well of a first conductivity type;
(b) a buried channel of a second conductivity type;
(c) a dielectric disposed on the substrate; and
(d) six gates disposed on the dielectric that are spatially oriented sequentially 1 through 6 in which six gates, in a first mode, receives signals in which alternating gates receive substantially complimentary clock cycles, and in a second mode the gates receive signals in which gates 1 and 4 receive complimentary clock cycles and gates 2 and 5 are approximately held at a first constant voltage and gates 3 and 6 are approximately held at a second constant voltage.
2. A charge-coupled device comprising:
(a) a substrate or well of a first conductivity type;
(b) a buried channel of a second conductivity type;
(c) a dielectric disposed on the substrate; and
(d) twelve gates disposed on the dielectric that are space oriented sequentially 1 through 12 in which twelve gates, in a first mode, receive signals in which alternating gates receive substantially complimentary clock cycles; and in a second mode the gates receive signals in which gates 1 , 5 and 9 are clocked substantially complimentary to gates 3 , 7 and 11 and gates 2 , 4 , 6 , 8 , 10 and 12 are approximately held at a first constant voltage; and in a third mode gates 1 and 7 are clocked substantially complimentary to gates 4 and 10 and gates 2 , 5 , 8 and 11 are approximately held at a second constant voltage and gates 3 , 6 , 9 and 12 are approximately held at a third constant voltage.
3. The charge-coupled device as in claim 2 wherein the first and second voltages are substantially equal.
4. The charge-coupled device as in claim 2 wherein the first and third voltages are substantially equal.
5. A camera comprising:
a charge-coupled device comprising:
(a) a substrate or well of a first conductivity type;
(b) a buried channel of a second conductivity type;
(c) a dielectric disposed on the substrate; and
(d) six gates disposed on the dielectric that are space oriented sequentially 1 through 6 in which six gates, in a first mode, receives signals in which alternating gates receive substantially complimentary clock cycles, and in a second mode the gates receive signals in which gates 1 and 4 receive complimentary clock cycles and gates 2 and 5 are approximately held at a first constant voltage and gates 3 and 6 are approximately held at a second constant voltage.
6. A camera comprising:
a charge-coupled device comprising:
(a) a substrate or well of a first conductivity type;
(b) a buried channel of a second conductivity type;
(c) a dielectric disposed on the substrate; and
(d) twelve gates disposed on the dielectric that are space oriented sequentially 1 through 12 in which twelve gates, in a first mode, receive signals in which alternating gates receive substantially complimentary clock cycles; and in a second mode the gates receive signals in which gates 1 , 5 and 9 are clocked substantially complimentary to gates 3 , 7 and 11 and gates 2 , 4 , 6 , 8 , 10 and 12 are approximately held at a first constant voltage; and in a third mode, gates 1 and 7 are clocked substantially complimentary to gates 4 and 10 and gates 2 , 5 , 8 and 11 are approximately held at a second constant voltage and gates 3 , 6 , 9 and 12 are approximately held at a third constant voltage.
7. The camera as in claim 6 wherein the first and second voltages are substantially equal.