Abstract: An environmental-barrier layer can protect a die or an array of die. A substrate that includes various functional components can be coupled to a porous environmental-barrier layer to form an array of die prior to dividing the array into individual die. The porous environmental-barrier layer can be a layer that includes polymer or fluoropolymer. The porous environmental-barrier layer can also be a filter layer for allowing certain waves to pass through and blocking particles and other debris. The porous environmental-barrier layer can protect each die in the array and the functional components from damage by protecting the die and the functional components from mechanical, electrical, or environmental damage (e.g., contamination by fluid or dust) without impeding a function of the functional components.

Abstract: An environmental-barrier layer can protect a die or an array of die. A substrate that includes various functional components can be coupled to a porous environmental-barrier layer to form an array of die prior to dividing the array into individual die. The porous environmental-barrier layer can be a layer that includes polymer or fluoropolymer. The porous environmental-barrier layer can also be a filter layer for allowing certain waves to pass through and blocking particles and other debris. The porous environmental-barrier layer can protect each die in the array and the functional components from damage by protecting the die and the functional components from mechanical, electrical, or environmental damage (e.g., contamination by fluid or dust) without impeding a function of the functional components.

Abstract: A method of installing a vent to protect an open port of a micro-electrical mechanical system (MEMS) device, the vent being of the type comprising an environmental barrier membrane attached to a carrier and the vent further being attached to a liner, the method comprising the steps of: (a) feeding the vent to a die attach machine with die ejectors and at least one of a vacuum head and a gripper head; (b) detaching the vent from said liner using the die ejectors; (c) picking up the vent with at least one of the vacuum head and the gripper head of the die attach machine; (d) disposing the vent over the open port of the MEMS device; and (e) securing the vent over the open port of the MEMS device.

Abstract: A method of installing a vent to protect an open port of a micro-electrical mechanical system (MEMS) device, the vent being of the type comprising an environmental barrier membrane attached to a carrier and the vent further being attached to a liner, the method comprising the steps of: (a) feeding the vent to a die attach machine with die ejectors and at least one of a vacuum head and a gripper head; (b) detaching the vent from said liner using the die ejectors; (c) picking up the vent with at least one of the vacuum head and the gripper head of the die attach machine; (d) disposing the vent over the open port of the MEMS device; and (e) securing the vent over the open port of the MEMS device.

Abstract: A photoelectric sensing system for detecting the occurrence of interruptions of a light beam is arranged to compensate for non-interrupting short-term variations occurring during transmission of the light beam. A clock controlled memory element enables a light emitting generator to generate a serial train of light pulse signals. Each generated light pulse signal is sensed by a sensor arranged to control the memory element to modulate the emitted light pulse signal to compensate for short-term variations occurring in the light signal transmission path.