Fig. 1. Schematic diagram of package model structure

Fig. 2. Schematic diagram of the microchannel heat sink structures. (a) Grooved microchannels; (b) cylindrical microchannels

Fig. 3. Two models of microchannel temperature contour hot cloud plot. (a) Grooved microchannels; (b) cylindrical microchannels

Fig. 4. Structure of the oblique wing microchannel. (a) Schematic diagram of the cut; (b) schematic of the internal planing

Fig. 5. Cloud maps of fluid flow velocity before and after optimization. (a) Cylindrical microchannels; (b) oblique microchannels

Fig. 6. Thermal analysis of the encapsulation of inclined finned microchannels. (a) Contour temperature cloud map; (b) glossy surface temperature rise plot of each single tube

Fig. 7. Thermal contour maps of temperature contour. (a) 1.7 m/s water velocity; (b) 1.8 m/s water velocity; (c) 1.9 m/s water velocity; (d) 2.0 m/s water velocity

Fig. 8. Temperature rise distribution curves of each single tube with different water flow rates

Fig. 9. Output power of different single tubes

Fig. 10. P-I characteristic curves of multi-tube semiconductor laser before and after optimization