Oscillator layout
An oscillator layout includes: a first row layout region constituted by sequentially arranging a second B layout region, second A layout region, third B layout region and third A layout region in parallel; and a second row layout region constituted by sequentially arranging a first A layout region, first B layout region, fourth A layout region and fourth B layout region in parallel. Inputs and outputs of the first A layout region, second A layout region, third A layout region and fourth A layout region constitute a first ring topology, inputs and outputs of the first B layout region and third B layout region constitute a second ring topology, inputs and outputs of the second B layout region and fourth B layout region constitute a third ring topology, the second ring topology and third ring topology are both electrically connected to the first ring topology.
1. An oscillator layout, comprising:
A layout regions, which comprises a first A layout region, a second A layout region, a third A layout region, and a fourth A layout region; B layout regions, which comprises a first B layout region, a second B layout region, a third B layout region, and a fourth B layout region, both the A layout regions and the B layout regions being layouts for inverters;
a first row layout region, constituted by sequentially arranging the second B layout region, the second A layout region, the third B layout region, and the third A layout region in parallel; and
a second row layout region, constituted by sequentially arranging the first A layout region, the first B layout region, the fourth A layout region, and the fourth B layout region in parallel, wherein
inputs and outputs of the first A layout region, the second A layout region, the third A layout region, and the fourth A layout region constitute a first ring topology, inputs and outputs of the first B layout region and the third B layout region constitute a second ring topology, inputs and outputs of the second B layout region and the fourth B layout region constitute a third ring topology, and the second ring topology and the third ring topology are both electrically connected to the first ring topology.
2. The oscillator layout of claim 1 , wherein an area of each A layout region is greater than that of each B layout region.
3. The oscillator layout of claim 1 , wherein a height of each A layout region is equal to that of each B layout region, and a length of each A layout region is greater than that of each B layout region.
4. The oscillator layout of claim 3 , wherein an electric connection from the output of the second A layout region to the input of the third A layout region has a length 23 , an electric connection from the output of the fourth A layout region to the input of the first A layout region has a length 41 , and the length 23 is equal to the length 41 .
5. The oscillator layout of claim 3 , wherein an electric connection from the output of the first A layout region to the input of the second A layout region has a height 12 , an electric connection from the output of the third A layout region to the input of the fourth A layout region has a height 34 , and the height 12 is equal to the height 34 .
6. The oscillator layout of claim 3 , wherein an electric connection from the output of the fourth A layout region to the input of the third B layout region has a height 43 , an electric connection from the output of the second A layout region to the input of the first B layout region has a height 21 , and the height 43 is equal to the height 21 .
7. The oscillator layout of claim 3 , wherein an electric connection from the output of the third A layout region to the input of the second B layout region has a length 132 , an electric connection from the output of the first A layout region to the input of the fourth B layout region has a length 214 , and the length 132 is equal to the length 214 .
8. The oscillator layout of claim 3 , wherein an electric connection from the output of the second B layout region to the input of the second A layout region has a length 122 , an electric connection from the output of the third B layout region to the input of the third A layout region has a length 133 , an electric connection from the output of the first B layout region to the input of the first A layout region has a length 211 , an electric connection from the output of the fourth B layout region to the input of the fourth A layout region has a length 244 , and the length 122 , the length 133 , the length 211 , and the length 244 are all equal.
9. The oscillator layout of claim 1 , further comprising:
a third row layout region, constituted by sequentially arranging the third B layout region, the third A layout region, the fourth B layout region, and the fourth A layout region in parallel; and
a fourth row layout region, constituted by sequentially arranging the second A layout region, the second B layout region, the first A layout region, and the first B layout region in parallel.
10. The oscillator layout of claim 9 , wherein a height of each A layout region is equal to that of each B layout region, and a length of each A layout region is greater than that of each B layout region.
11. The oscillator layout of claim 9 , wherein
an electric connection from the output of the second A layout region of the first row layout region to the input of the third A layout region of the first row layout region has a length 23 ;
an electric connection from the output of the fourth A layout region of the second row layout region to the input of the first A layout region of the second row layout region has a length 41 ;
an electric connection from the output of the third A layout region of the third row layout region to the input of the fourth A layout region of the third row layout region has a length 34 ; and
an electric connection from the output of the first A layout region of the fourth row layout region to the input of the second A layout region of the fourth row layout region has a length 12 , wherein
the length 23 , the length 41 , the length 34 , and the length 12 are all equal.
12. The oscillator layout of claim 9 , wherein
an electric connection from the output of the third A layout region of the first row layout region to the input of the fourth A layout region of the second row layout region has a height 34 ;
an electric connection from the output of the first A layout region of the second row layout region to the input of the second A layout region of the first row layout region has a height 12 ,
an electric connection from the output of the fourth A layout region of the third row layout region to the input of the first A layout region of the fourth row layout region has a height 41 ; and
an electric connection from the output of the second A layout region of the fourth row layout region to the input of the third A layout region of the third row layout region has a height 23 , wherein
the height 34 , the height 12 , the height 41 , and the height 23 are all equal.
13. The oscillator layout of claim 9 , wherein
an electric connection from the output of the second B layout region of the first row layout region to the input of the second A layout region of the first row layout region has a length 122 ;
an electric connection from the output of the third B layout region of the first row layout region to the input of the third A layout region of the first row layout region has a length 133 ;
an electric connection from the output of the first B layout region of the second row layout region to the input of the first A layout region of the second row layout region has a length 211 ;
an electric connection from the output of the fourth B layout region of the second row layout region to the input of the fourth A layout region of the second row layout region has a length 244 ;
an electric connection from the output of the third B layout region of the third row layout region to the input of the third A layout region of the third row layout region has a length 333 ;
an electric connection from the output of the fourth B layout region of the third row layout region to the input of the fourth A layout region of the third row layout region has a length 344 ;
an electric connection from the output of the second B layout region of the fourth row layout region to the input of the second A layout region of the fourth row layout region has a length 422 ; and
an electric connection from the output of the first B layout region of the fourth row layout region to the input of the first A layout region of the fourth row layout region has a length 411 , wherein
the length 122 , the length 133 , the length 211 , the length 244 , the length 333 , the length 344 , the length 422 , and the length 411 are all equal.
14. The oscillator layout of claim 9 , wherein
an electric connection from the output of the third A layout region of the first row layout region to the input of the second B layout region of the first row layout region has a length 132 ;
an electric connection from the output of the first A layout region of the second row layout region to the input of the fourth B layout region of the second row layout region has a length 214 ;
an electric connection from the output of the fourth A layout region of the third row layout region to the input of the third B layout region of the third row layout region has a length 343 ; and
an electric connection from the output of the second A layout region of the fourth row layout region to the input of the first B layout region of the fourth row layout region has a length 421 , wherein
the length 132 , the length 214 , the length 343 , and the length 421 are all equal.
15. The oscillator layout of claim 9 , wherein there are a lateral wiring on a same path and a longitudinal wiring on a same path from the output of each A layout region to the input of another A layout region.
16. The oscillator layout of claim 9 , wherein there are a lateral wiring on a same path and a longitudinal wiring on a same path from the output of each A layout region to the input of the corresponding B layout region layout region.