The output power of laser pointer is 100mW

This greatly increases the costs, not conducive to the healthy development of industry. The workshop makes the detailed production requirement of laser pointer .Since the discovery of the luminescence of porous silicon, international and domestic to its light-emitting mechanism and related physical phenomena were large and in-depth research. Has been made on silicon porous silicon using silicon bipolar transistor driven LED. However, the size of the holes in silicon in the porous silicon and microcrystalline difficult to control, the performance is not stable enough, and its production process is incompatible with traditional integrated circuit technology. 
In the field of electronic information materials, the center of gravity to the next phase of work will be concentrated in strong support of the IC supporting material, with the National Integrated Circuit implementation of major projects, give full play to Beijing in the areas of microelectronics IC-led multi-faceted advantage of technological resources to carry out interdisciplinary and multidisciplinary research combining public relations, large-scale key materials technology, and actively promote the development of the field of electronic information materials conducive to supporting the development of Beijing and domestic information industry. Beijing Science and Technology Commission will be the key to the development of materials of the LSI. The output power of laser pointer is 100mW.
Nonmetallic inclusions, thereby causing the electrochemical heterogeneity, reducing the melting layer of corrosion resistance due to the heterogeneity of the melt layer diluted causes chemical composition heterogeneity and metal organization. Melt layer internal stress will reduce the corrosion resistance, and that "stress corrosion". The thermal effect of the stainless steel surface of the sealing surface to varying degrees in the melt layer, leaving the residual stress, it generally requires processing to eliminate residual stress after processing. Processing of high temperature, long holding time would be better. However, this may cause the melting layer of chromium carbide precipitation, chromium depletion caused by intergranular corrosion. laser pointer is of the mini size.