Invention Application
- Patent Title: INJECTION MOLDED MICROOPTICS
- Patent Title (中): 注射成型微波
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Application No.: US15294283Application Date: 2016-10-14
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Publication No.: US20170033153A1Publication Date: 2017-02-02
- Inventor: Lawrence Jacobowitz , Stephen Buchwalter , Casimer DeCusatis , Peter A. Gruber , Da-Yuan Shih
- Applicant: International Business Machines Corporation
- Main IPC: H01L27/146
- IPC: H01L27/146 ; G02F1/137 ; G02B3/00 ; G02F1/29 ; H01L33/58 ; H01L31/0232

Abstract:
A wafer-scale apparatus and method is described for the automation of forming, aligning and attaching two-dimensional arrays of microoptic elements on semiconductor and other image display devices, backplanes, optoelectronic boards, and integrated optical systems. In an ordered fabrication sequence, a mold plate comprised of optically designed cavities is formed by reactive ion etching or alternative processes, optionally coated with a release material layer and filled with optically specified materials by an automated fluid-injection and defect-inspection subsystem. Optical alignment fiducials guide the disclosed transfer and attachment processes to achieve specified tolerances between the microoptic elements and corresponding optoelectronic devices and circuits. The present invention applies to spectral filters, waveguides, fiber-optic mode-transformers, diffraction gratings, refractive lenses, diffractive lens/Fresnel zone plates, reflectors, and to combinations of elements and devices, including microelectromechanical systems (MEMS) and liquid crystal device (LCD) matrices for adaptive, tunable elements. Preparation of interfacial layer properties and attachment process embodiments are taught.
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