![](https://csdnimg.cn/release/download_crawler_static/7747917/bg6.jpg)
66
Spaces of the final pattern are
Spaces of the final pattern are Spaces of the final pattern are
Spaces of the final pattern are
constant.
constant.constant.
constant.
Patterns can be painted into two
Patterns can be painted into two Patterns can be painted into two
Patterns can be painted into two
groups,
groups, groups,
groups, primary
primaryprimary
primary and
and and
and secondary
secondarysecondary
secondary.
..
.
The primary and secondary
The primary and secondary The primary and secondary
The primary and secondary
patterns are separated by spacer.
patterns are separated by spacer.patterns are separated by spacer.
patterns are separated by spacer.
The different color patterns
The different color patternsThe different color patterns
The different color patterns
cannot “connect”
annot “connect”annot “connect”
annot “connect”.
・・・
・・・・・・
・・・
・・・
・・・・・・
・・・
・・・
・・・・・・
・・・
1 2 1 2 1
Mandrel
+Spacer
Final
Feasible SADP Layout
A B
2:Secondary Pattern1:Primary pattern
Coloring conflict
W
Before slimming
2W
4W
Select blue pattern
Mandrel + spacer
A B
W
3W