VACUUM COMPATIBLE LED SUBSTRATE HEATER

• Main Authors: WYKA GARY E, WEAVER WILLIAM T, SCHALLER JASON M, BLAHNIK DAVID, VOPAT ROBERT BRENT
• Format: Patent
• Language: Chinese; English
• Published: 16.02.2018
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

A system for heating substrates within a chamber, which may be maintained at vacuum conditions, is disclosed. The LED substrate heater comprises a base having a recessed portion surrounded by sidewalls. A plurality of light emitting diodes (LEDs) are disposed within the recessed portion. The LEDs may be GaN or GaP LEDs, which emit light at a wavelength which is readily absorbed by silicon or a coating on the silicon, thus efficiently and quickly heating the substrate. A transparent window is disposed over the recessed portion, forming a sealed enclosure in which the LEDs are disposed. A sealing gasket may be disposed between the sidewalls and the window. 本发明公开了种在可保持于真空条件下的室内加热基板的系统。发光二极管基板加热器包括基座，所述基座具有被侧壁环绕的凹陷部。多个发光二极管安置于所述凹陷部内。所述发光二极管可为GaN发光二极管或GaP发光二极管，其发射易于被硅或所述硅上的涂层吸收的波长的光，从而高效且迅速地加热所述基板。透明窗口安置于所述凹陷部上方，从而形成用以在其中安置所述发光二极管的被密封的壳体。密封衬垫可安置于所述侧壁与所述窗口之间。