Abstract:
The present invention relates to a heating method and a printed circuit board comprising a heating element (90) which generates heat required to heat printed circuit board components. The printed circuit board comprises heat conductor (40) between the heating element (90) and the component to be heated, the heat conductor receiving heat generated by the heating element (90) and conducting the heat along the surface of the printed circuit board beneath the lower surface of the component to be heated. Furthermore, the printed circuit board comprises conductor parts (15, 70) which are narrower than the heat conductor (40), or which have a smaller cross-sectional surface area than does the heat conductor, and which restrict heat transfer away from the heat conductor (40) to a component other than the one to be heated when the heat conductor (40) functions as a ground plane or a signal path.
Abstract:
A circuit package, or other device, (10) is mounted on a printed circuit board, or other substrate, (14) with an electrically conductive sinuous resistor wire structure 30 therebetween to define a space filled with adhesive. When the adhesive is set the package is held in place. When removal is desired, current is passed through the sinuous wire structure to soften the adhesive to permit removal of the package without damage to the package or the board.
Abstract:
An apparatus including a base element (101) with wiring for one or more electronic components and a film of blocking material (211), a display element (102) comprising a transparent layer (205) and electrodes (206) configured to emit light through the transparent layer. The display element (102) faces the film of blocking material (211) of the base element (101) and the film of blocking material (211) of the base element (101) is configured to provide an encapsulation structure for the display element (102).
Abstract:
Aspects of the present invention include a system and method for improving the reliability performance of hard disk drives by routing the traces connected to the slider from the trailing edge to the leading edge and having a portion of the traces being under the magnetic slider. Aspects of the present invention can also include routing the traces in a manner that lessens the stress experienced during vibration or shock events.
Abstract:
An improved connector assembly (1) particularly useful for testing semiconductor devices of ball grid array ("BGA") structure (10) with a plurality of solder balls (11) formed on the surface thereof. The balls (11) are placed into contact with opposing conductive portions (3a) of the connector assembly. A heat generating member (7), such as a wire, is disposed proximate to the connector assembly conductive portions (3a) and may be selectively energized to generate heat to partially melt the solder balls (11). Reliable connections are effected in this manner.