SBIR Phase I: Semiconductor: Micro Solid Immersion Lens for Small Mobile Optical Disc Drive

这个小企业创新研究（SBIR）第一阶段项目将开发一种新型的可移动超高容量微光存储设备。该技术基于小尺寸光存储（SFFO），利用DVD基础设施中的32mm模制光盘技术实现0.5 GB/张。我们建议使用采用高折射率微固体浸没透镜（microSIL）的近场记录（NFR）增加11到22倍。信息存储密度严重依赖于可以用聚焦光斑可靠读取的最小标记（尺寸~?/n?sin?），其中n为折射率，？波长是和吗？描述聚焦光束的锥角。n=3.3 at ？=650 nm使线光斑尺寸缩小了3.3倍，面密度增加了3.32或~11X。增加罪恶?从0.60到0.85，对于22X总体或11GB/磁盘，又增加了两倍。电子束介质控制，MEMS半导体灰度微sil蚀刻工艺加上这种新颖的前表面微光学系统技术使该系统成为可能。我们建议将GaP microSIL集成到我们的动态自旋支架测试仪中，该测试仪包含所有必要的读写光学和电子器件，以开发足够的理解来制定具体的商业化计划。10+ GB容量的低成本可移动光学墨盒在便携式电子设备市场上的商业应用正以前所未有的速度增长，因为曾经为台式机和工作站保留的应用正在向便携式平台发展。这种数字融合正在推动移动市场的发展。它为娱乐、教育内容、电影、音乐、静态摄影和个人医疗记录的存储和传输提供了重要的新机会。如今，内容几乎完全通过大格式光盘（CD/DVD）提供，一种新的小尺寸光学标准定位于利用现有的基础设施和现有的消费者习惯。据估计，2006年单是静止照片和视频手机摄像头就有3亿部。

This Small Business Innovation Research (SBIR) Phase 1 project will develop a novel removable ultra high capacity micro optical storage device. The technology is based on a small form factor optical storage (SFFO) achieving 0.5 GB/disc using 32mm molded disc technology leveraged from DVD infrastructure. We propose a 11 to 22 times increase using Near Field Recording (NFR) employing a high index micro Solid Immersion Lens (microSIL). Information storage density is critically dependant on the smallest mark that can be reliably read with a focused spot (size~?/n?sin?) where n is the index of refraction, ? is the wavelength and ? describes the cone angle of the focused beam. A microSIL of GaP with n=3.3 at ?=650 nm shrinks the linear spot size by 3.3X yielding an areal density increase of 3.32 or ~11X. Increasing sin? from 0.60 to 0.85 gives another factor of two for 22X overall or 11GB/disc. Electron beam media mastering, MEMS semiconductor grayscale microSIL etching processes plus this novel front surface micro optical system technologies makes this system conceivable. We propose to integrate a GaP microSIL into our dynamic spin stand tester incorporating all the necessary read and write optics and electronics to develop sufficient understanding to make concrete commercialization plans.The commercial applications for a 10+ GB capacity low cost removable optical cartridge in the portable electronic device market are growing at an unprecedented pace as applications once reserved for desktops and workstations find their way onto portable platforms. This digital convergence is driving the mobile market arena. It provides majornew opportunities for storage and delivery of entertainment, educational content, movies, music, still photography and individual medical records. Today content is provided almost exclusively on large-format optical discs (CD/DVD), a new small form factor optical standard is positioned to capitalize on the existing infrastructure and existingconsumer habits. Still photo and video mobile phone cameras alone are estimated at 300 million units in 2006.