Abstract: A heat sink includes a heat sink base having a central area for contacting a heat-generating component and a perimeter area extending beyond the central area, wherein the perimeter area of the heat sink base includes air pathways through the heat sink base and the central area does not. The heat sink further includes heat sink fins extending from the heat sink base across the central area and the perimeter area. Airflow across the heat sink removes heat from the heat-generating component, such as a processor. The central area may be secured in contact with a surface of a processor operably secured to a circuit board. The heat sink is particularly beneficial in circuit board configurations having a component immediately upstream or downstream of the processor.

Abstract: A testing system includes a single air collection box and a laminar flow system for obtain an airflow measurement. The single airflow box has air inlet and outlet ports at opposite ends. The laminar flow element has a laminar flow element inlet in fluid communication with the air collection box and a laminar flow element outlet sealed with the air outlet port of the air collection box. A blower in fluid communication with the laminar flow element outlet draws airflow into the air collection box through a unit under test and out of the air collection box through the laminar flow element. A pressure transducer senses the differential air pressure across the laminar flow element and enables a determination of the airflow rate.

Abstract: A testing system includes a single air collection box and a laminar flow system for obtain an airflow measurement. The single airflow box has air inlet and outlet ports at opposite ends. The laminar flow element has a laminar flow element inlet in fluid communication with the air collection box and a laminar flow element outlet sealed with the air outlet port of the air collection box. A blower in fluid communication with the laminar flow element outlet draws airflow into the air collection box through a unit under test and out of the air collection box through the laminar flow element. A pressure transducer senses the differential air pressure across the laminar flow element and enables a determination of the airflow rate.