摘要:
A light emitting device (LED) assembly may include an electrically insulating substrate and a thermally conductive layer on a surface of the insulating substrate. A light emitting device may be on the thermally conductive layer so that the thermally conductive layer is between the light emitting device and the electrically insulating substrate. Moreover, the thermally conductive layer may extend beyond an edge of the light emitting device in at least one direction a distance greater than half of a width of the light emitting device.
摘要:
A semiconductor testing system that includes an plural imaging devices for capturing plural video sequences from a single optical path and concurrently displaying the video sequences for effectively positioning a probe for testing a semiconductor wafer.
摘要:
Systems and methods are described for imaging an eye portion or for treating glaucoma in an eye of a patient. In a first step an optical microscopic image of a portion of the eye is acquired. In the optical microscopic image a distinguishable anatomical structure is identified to predict a location of a volume portion to be imaged three-dimensionally. Three-dimensional imaging of the located volume portion is performed by acquiring an optical coherence tomography image of the located volume portion. The volume portion is treated by either directing a laser beam to the volume portion or inserting an implant based on the OCT-image.
摘要:
A system includes an imaging device suitable for effectively positioning a probe for testing a semiconductor wafer. The system includes an objective lens for sensing the device under test and an imaging device sensing a first video sequence including multiple frames of an overlapping region of the device under test. A video signal is provided to a display including multiple frames of the overlapping region of the device under test. An operator indicating a region of the video signal of devices under test and the system in response presenting an enlarged view of a plurality of different regions of the device under test in a plurality of windows free from user input, where the region and the plurality of different regions are simultaneously displayed on the display.
摘要:
A submount for mounting an LED chip includes a substrate, a die attach pad configured to receive an LED chip on an upper surface of the substrate, a first meniscus control feature on the substrate surrounding the die attach pad and defining a first encapsulant region of the upper surface of the substrate, and a second meniscus control feature on the substrate surrounding the first encapsulant region and defining a second encapsulant region of the upper surface of the substrate. The first and second meniscus control features may be substantially coplanar with the die attach pad. A packaged LED includes a submount as described above and further includes an LED chip on the die attach pad, a first encapsulant on the substrate within the first encapsulant region, and a second encapsulant on the substrate within the second encapsulant region and covering the first encapsulant.
摘要:
A submount for mounting an LED chip includes a substrate, a die attach pad configured to receive an LED chip on an upper surface of the substrate, a first meniscus control feature on the substrate surrounding the die attach pad and defining a first encapsulant region of the upper surface of the substrate, and a second meniscus control feature on the substrate surrounding the first encapsulant region and defining a second encapsulant region of the upper surface of the substrate. The first and second meniscus control features may be substantially coplanar with the die attach pad. A packaged LED includes a submount as described above and further includes an LED chip on the die attach pad, a first encapsulant on the substrate within the first encapsulant region, and a second encapsulant on the substrate within the second encapsulant region and covering the first encapsulant. Method embodiments are also disclosed.
摘要:
A method of controlling dispensing of a liquid can include detecting a predetermined shape of a surface of a liquid in a container by reflecting optical radiation from the surface to control a volume of the liquid dispensed into the container. Related apparatus and computer program products are also disclosed.
摘要:
Methods of packaging a semiconductor light emitting device in a reflector having a moat positioned between a lower and an upper sidewall thereof, the upper and lower sidewall defining a reflective cavity, include dispensing encapsulant material into the reflective cavity including the light emitting device therein to cover the light emitting device and to form a convex meniscus of encapsulant material in the reflective cavity extending from an edge of the moat without contacting the upper sidewall of the reflector. The encapsulant material in the reflective cavity is cured. Packaged semiconductor light emitting devices and reflectors for the same are also provided.