QUAKER STATE Q METAL GUARD

Brand	Owner	Address	Description
QUAKER STATE Q METAL-GARD	Quaker State Oil Refining Corporation	Oil City PA	QUAKER STATE Q METAL GUARD;AUTOMOTIVE UNDERCOATING;THE DRAWING IS LINED FOR THE COLORS SILVER AND GREEN.;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

An image sensor with optical guard rings is provided. The optical guard rings are embedded in a stacked inter-metal dielectric layer between the sensor areas, that is, around each pixel. The refraction index (RI) of the optical guard rings is smaller than that of the stacked inter-metal dielectric layer. Therefore, the incident light with a large angle of incidence is blocked by the optical guard rings and cannot arrive at the adjacent pixels.