Abstract: An improved monolithic multilayer ceramic filter capacitor for use with implanted medical devices such as pacemakers and defibrillators. The capacitor includes a parallel stack of positive electrode plates that have sufficient current carrying capability to be directly connected in series with a lead wire from an implanted medical device. Therefore, the capacitor may be used for both filtering and pulsed energy transmission. High current capability is achieved through the use of interleaved electrode plates where the positive electrodes are connected in parallel, and where at least one of the positive electrodes is of sufficiently high conductor density to carry a majority of the current transmitted by the implantable medical device lead.

Abstract: A flying prober having at least one prober head for contacting test sites on a unit under test which is programed for measuring isolations and continuities of test sites through the prober head. The flying prober includes an automatic loading and locating mechanism for securing the unit under test on the prober relative to the prober head and includes an angled frame for supporting the prober heads and the loading and locating mechanism. The prober heads include a camera and a test probe wherein the camera views and verifies contact between the test probe and the test sites.

Abstract: A hollow plunger spring probe assembly for performing tests on an electrical device including a probe receptacle for receipt of the hollow plunger. The plunger includes a tip at one end of the plunger for contacting the electrical device and a spring positioned within the opening in the plunger between the tip and a receptacle post having a head portion extending into the plunger through a second end. The post is rigidly attached to the receptacle. The plunger includes an attachment mechanism for releasably attaching the plunger to the head portion of the post.