Patent ID: 9440312
Filing Date: 2016-09-13
CPC Classification: B23K,H01L,H01S,H05K,Y10T

Claim Text:
1. A method for manufacturing laser diode units, comprising: providing a base including a ceramic carrier and a metal layer on the ceramic carrier; generating a plurality of laser light pulses while controlling a laser beam parameter which is selected from the group consisting of a pulse repetition rate, pulse duration, beam output power, linear speed and number of passes and a combination thereof; training laser light pulses at a predetermined pattern on a metal layer surface, thereby ablating the metal layer so as to form a plurality of ablated regions each having a desired depth while causing accumulation of burrs on the metal layer surface next to respective ablated regions; dicing the ceramic carrier with a cutting saw, thereby producing a plurality of submounts; and soldering an inner surface of a high power laser diode to each submount, wherein the laser beam parameter is controlled so that the burrs do not extend beyond an outer surface of the soldered laser diode.