Hon Hai Precision Industry Co., Ltd.

Hong-fu Jin Precision Industry (shenzhen) Co., Ltd.

Chi-Lu Chih

Qing Wen Liu

Jun-Qi Li

Guo-Han Yue

Mu-Chi Hsu

An exemplary brittle non-metallic workpiece () is made by the laser beam (), a cutting surface () of the brittle non-metallic workpiece has no micro cracks. A method for making the brittle non-metallic workpiece includes: focusing a laser beam on the brittle non-metallic substrate to form an elliptic beam spot; driving the laser beam to move along a predetermined curved cutting path, making a center of a major axis of the elliptic beam spot intersecting along the predetermined curved cutting path and the major axis being tangent to the predetermined curved cutting path at the intersecting point; a coolant stream following the elliptic beam spot to move, thus producing a crack in the brittle non-metallic substrate corresponding to the predetermined curved cutting path; separating the brittle non-metallic substrate along the crack. A laser cutting device () for making the same is also provided.

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Taipei Hsien, Taiwan

Chi-Lu Chih