One of his first projects was the development of a low-temperature thermometer using gallium-doped germanium.

Several low-temperature thermometers and a thermocouple connected with a delicate galvanometer completed his preparations.

Minor uses of hexane include its use as a laboratory chemical and as a replacement for mercury in low-temperature thermometers.

He started working at Texas Instruments in 1961, where one of his early projects was the development of a low-temperature thermometer that was developed using a germanium semiconductor that had been doped with small quantities of gallium, which measured changes in temperature based on the change in the device's electrical resistance as energy was absorbed.