Actually, changing to 2MAP from 1MA

Actually, changing to 2MAP from 1MAP cannot help to avoid deformation of long lead half etch a lot, just help a little.
In order to reduce lead deformation risk, adding full metal to dam bar is most recommendable.
 
Below Max 0.5 and Max 0.1 capability answer is for your reference in case 2MAP and reduce deformation risk even a little.

結果 (中文) 2:

其实，改变从1具体到2MAP不能有助于避免很长的变形半蚀刻了很多，只是有点帮助。
为了减少铅变形的风险，增加全金属坝酒吧是最值得推荐的。下面最大值0.5和Max 0.1功能答案是对的情况下2MAP您参考，减少变形风险甚至有点。
 

結果 (中文) 3:

其实，改变从1map不能2地图有助于避免长期半变形腐蚀了很多，只是有点帮助。
为了减少变形的风险，加上全金属坝栏是最可取的。
 
在最大0.5最大0.1能力回答是您在案例2地图参考甚至一点点减少变形的风险。