Test circuit of semiconductor apparatus
View Patent ↗A test circuit of a semiconductor apparatus includes a plurality of memory blocks, and a comparison block configured to compare data of two memory blocks, wherein the two of the plurality of memory blocks do not share word lines.
1. A test circuit of a semiconductor apparatus, comprising:
a plurality of memory blocks; and
a comparison block configured to compare data of two alternating memory blocks of the plurality of memory blocks,
wherein directly adjacent memory blocks of the plurality of memory blocks are directly connected by word lines, and
wherein the two of the plurality of memory blocks compared by the comparison block are not directly connected by a word line.
2. The test circuit according to claim 1 , wherein the plurality of memory blocks are configured to share, by the unit of a pair of memory blocks, one of even-numbered word lines and odd-numbered word lines.
3. The test circuit according to claim 1 , wherein the comparison block is configured to perform a parallel test in where pluralities of data of the two memory blocks are compared with each other, wherein the two memory blocks do not share word lines.
4. The test circuit according to claim 1 , wherein the word lines comprise sub word lines.
5. A test circuit of a semiconductor apparatus, comprising:
a plurality of memory blocks;
a first comparison block configured to select a first pair of alternate memory blocks in series of the plurality of memory blocks, and to compare data of the selected first pair of alternate memory blocks; and
a second comparison block configured to select a second pair of alternate memory blocks in the series of the plurality of memory blocks, and to compare data of the selected second pair of alternate memory blocks, wherein the memory blocks in the first pair of memory blocks are different from the memory blocks in the second pair of memory blocks,
wherein directly adjacent memory blocks of the plurality of memory blocks are directly connected by word lines, and
wherein the two of the plurality of memory blocks compared by the comparison block are not directly connected by a word line.
6. The test circuit according to claim 5 , wherein the first pair of alternate memory blocks selected by the first comparison block and second pair of alternate memory blocks selected by the second comparison block are configured to not share word lines.
7. The test circuit according to claim 6 , wherein the word lines comprise sub word lines.
8. The test circuit according to claim 5 , wherein the first pair of alternate memory blocks selected by the first comparison block and the second pair of alternate memory blocks selected by the second comparison block are configured to not share sense amplifiers.
9. The test circuit according to claim 5 , wherein the first comparison block is configured to perform a parallel test where pluralities of data of the first pair of alternate memory blocks selected by the first comparison block are compared with each other.
10. The test circuit according to claim 5 , wherein the second comparison block is configured to perform a parallel test where pluralities of data of the second pair of alternate memory blocks selected by the second comparison block are compared with each other.
11. A system comprising:
a memory controller; and
a semiconductor memory device including a test circuit, the test circuit comprising:
a plurality of memory blocks; and
a comparison block configured to compare data of two alternating memory blocks of the plurality of memory blocks,
wherein directly adjacent memory blocks of the plurality of memory blocks are directly connected by word lines, and
wherein the two of the plurality of memory blocks compared by the comparison block are not directly connected by a word line.
12. The system according to claim 11 , wherein the plurality of memory blocks are configured to share, by the unit of a pair of memory blocks, one of even-numbered word lines and odd-numbered word lines.
13. The system according to claim 11 , wherein the comparison block is configured to perform a parallel test in where pluralities of data of the two memory blocks are compared with each other, wherein the two memory blocks do not share word lines.
14. The system according to claim 11 , wherein the word lines comprise sub word lines.