Abstract:
Semiconductor nano-sized particles possess unique optical properties, which make them ideal candidates for various applications in the UV photolithography. In this patent several such applications, including using semiconductor nano-sized particles or semiconductor nano-sized particle containing mateirals as highly refractive medium in immersion lithography, as anti-reflection coating in optics, as pellicle in lithography and as sensitizer in UV photoresists are described.
Abstract:
New routes involving multi-step reversible photo-chemical reactions using two-step techniques to provide non-linear resist for lithography are described in this disclosure. They may provide exposure quadratically dependant on the intensity of the light. Several specific examples, including but not limited to using nanocrystals, are also described. Combined with double patterning, these approaches may create sub-diffraction limit feature density.
Abstract:
Semiconductor nano-particles, due to their specific physical properties, can be used as optical modulator and reversible photo-bleachable materials for a wide spectrum, from far infrared to deep U.V. In this patent, nano-particles are provided with control circuitry to form a programmable mask. The optical characteristics of the nano-particles change to provide patterned light. Such patterned light can be used for example to expose a photoresist on a semiconductor wafer for photolithography. Other applications include, reversible contrast enhancement layer (R-CEL) in optical lithography, lithography mask inspection and writing and optical storage technologies.
Abstract:
Semiconductor nano-particles, due to their specific physical properties, can be used as optical modulator and reversible photo-bleachable materials for a wide spectrum, from far infrared to deep U.V. In this patent, nano-particles are provided with control circuitry to form a programmable mask. The optical characteristics of the nano-particles change to provide patterned light. Such patterned light can be used for example to expose a photoresist on a semiconductor wafer for photolithography. Other applications include, reversible contrast enhancement layer (R-CEL) in optical lithography, lithography mask inspection and writing and optical storage technologies.
Abstract:
Semiconductor nano-sized particles possess unique optical properties, which make them ideal candidates for various applications in the UV photolithography. In this patent several such applications, including using semiconductor nano-sized particles or semiconductor nano-sized particle containing mateirals as highly refractive medium in immersion lithography, as anti-reflection coating in optics, as pellicle in lithography and as sensitizer in UV photoresists are described.