用激光制造芯片，最新进展

Core Viewpoint - Researchers from Bilkent University in Turkey have developed a method using spatial light modulation to create needle-like laser beams, enabling better control over the energy distribution of the beams, which can lead to the fabrication of nanostructures and novel optical behaviors [2][3][10]. Group 1: Technology and Methodology - The new technique allows for the creation of nanostructures within silicon wafers, which was previously limited to the surface [8][18]. - By focusing laser beams tightly, researchers can create small voids in the silicon, which exhibit a "field enhancement" effect, altering the surrounding silicon structure [3][12]. - The method utilizes a special type of laser called a Bessel beam, which can maintain a narrow focus within silicon, overcoming scattering issues that hindered previous techniques [18][21]. Group 2: Applications and Future Prospects - This technology has the potential to manufacture multifunctional devices, with electronic components on the surface and photonic components embedded below [4][10]. - The research team is exploring the possibility of using this method to carve microfluidic channels beneath the chip surface, which could improve cooling and performance of electronic devices [4][11]. - The ability to create nanostructures could enhance solar cell energy collection capabilities and open new avenues in photonics and electronics [11][16]. Group 3: Challenges and Limitations - A current limitation of the method is the inability to precisely control the location of the voids created, which affects the uniformity of the nanostructures [12][22]. - Further research is needed to clarify the exact composition of the created structures, as the underlying silicon crystal structure may be altered [3][10].