Patent ID: 9633871
Date: 2017-04-25
CPC Classifications: H01L

Claim:
1. An electronic apparatus comprising: a first substrate; a wiring on the first substrate, the wiring being formed from an electrically conductive material and comprising tungsten; a low-resistance wiring on the first substrate; a second substrate; and a glass frit material interposed between the first substrate and the second substrate, and between the wiring and the second substrate, so that a first portion of the wiring is located inside of a sealed region defined by the first substrate, the second substrate, and the glass frit material, and a second portion of the wiring is located outside of the sealed region, wherein a difference in linear thermal expansion coefficient between the electrically conductive material of the wiring and a material of the first substrate is 5 ppm/K or less over a temperature range of 0° C. to 500° C., wherein the low-resistance wiring comprises a first low-resistance wiring portion formed inside of the sealed region and a second low-resistance wiring portion formed outside of the sealed region, wherein the first portion of the wiring is electrically connected to the first low-resistance wiring portion at a first connecting portion formed inside of the sealed region, wherein the second portion of the wiring is electrically connected to the second low-resistance wiring portion at a second connecting portion formed outside of the sealed region, and wherein, for a given length, the first low-resistance wiring portion and the second low-resistance wiring portion both have an electrical resistance lower than the wiring.