U.S. Philips Corporation

North American Philips Corporation

Otmar H Boser

Susan McGee

Richard C Sweet

Thomas Caulfield

Hemant S Betrabet

Robert H Kane

An improved dispersion strengthened lead-tin alloy solder is provided in which there is dispersed in the solder up to about 5 vol. percent of small particles, of a metal sulfide or a nickel-tin intermetallic.

Dispersion strengthened lead-tin alloy solder

A method for nondestructive testing of multilayer ceramic capacitors exhibiting piezoelectric effects only during poling by a bias voltage to determine the presence or absence of delaminations. The capacitor is inserted in an impedance bridge, a bias voltage of 1 to 2.5 times the rated voltage is applied and the impedance is measured as a function of frequency. A lower than expected impedance indicates a defective capacitor.

Nondestructive testing of multilayer ceramic capacitors

An improved hermetically sealed glass encapsulated monolithic ceramic capacitor in which a metallurgical bond between the capacitor termination and the end cap of its lead is effected by means of brazing.

Growing community of inventors

Scarsdale, NY, United States of America

Otmar H Boser