Abstract: A method of making a PCB having an integral heat spreader and/or central ground plane includes forming one or more first openings in a first layer of a metal at selected locations and filling the. openings with an electrically insulating material. The first sheet is laminated between second and third layers of a metal interleaved with first and second layers of a dielectric material. At least one second opening is formed through the insulating material in one of the first openings, and at least one third opening is formed in the laminate at a position displaced from the first openings. The upper and lower layers of metal are electrically connected to each other through the at least one second and third openings to define “vias” through the laminate. The vias comprise “clearance vias” from which the first metal sheet is electrically isolated, and “thermal vias” to which the first metal sheet is electrically connected.

Abstract: A total TMJ replacement system comprises a temporal implant component and a mandibular implant component.The temporal component comprises a thin, rigid plate of Vitallium.RTM. which is contoured to generally conform to and overlay at least the articular eminence and mandibular fossa portions of the glenoid fossa, but not the petro-tympanic fissure. A layer of Silastic.RTM. is securely attached to the superior surface of the plate and is disposed to reside between the plate and the floor of the mandibular fossa to act as both a filler and a means for adjusting the vertical position of the plate relative to the floor of the natural fossa. The plate includes a lateral flange which is screwed to the zygion to hold the plate securely in place.