The removal of saw damage and surface texturing is being done simultaneously in one short chemical step . 2 . the mechanically grooved buried contact cells the structure of cells is designed according to the grooved buried contact cells of bp company （ 3 ） la d反应在机械损伤处发生优先腐蚀，导致较小的凹陷，这些凹陷逐渐增大，最后变成坑，通过化学腐蚀可以同时完成绒面的织构和去除机械损伤，简化了太阳电地的生产工艺。
