Patent ID: 11938090
Assignee: SCHOTT PHARMA AG & CO. KGAA
Field: Materials, metallurgy (Chemistry)
Classification: CPC A  B  C | IPC A  B  C

Claim 12:
13. A container, comprising:
a substrate comprising:
a first surface area, the substrate having a first roughness value for a surface roughness of the first surface area;
a second surface area, the substrate having a second roughness value for a surface roughness of the second surface area, wherein in a height profile of the substrate along a cutting line crossing at least in part the first surface area and the second surface area, a height of the substrate along a first section of the height profile corresponding to the first surface area is larger than the height of the substrate along a second section of the height profile corresponding to the second surface area, the cutting line defining a line along which the height of a cross-section of the substrate is measured to define the height profile, wherein in the height profile an absolute value of a height difference between a point of maximum height or an averaged height, respectively, of the second section and a point of minimal height or an averaged height, respectively, of the first section defines a depth value, wherein a ratio of the depth value and the second roughness value is between 2 and 35; and
a marking element extending across the first surface area and the second surface area and comprising a cavity graved into the substrate, the first surface area and the second surface area together constituting the marking element, wherein across or beneath the first surface area the substrate has a first ratio value for a ratio of concentrations of two materials present in the first surface area or in a distinct depth in the substrate beneath thereof and wherein across or beneath the second surface area the substrate has a second ratio value for a ratio of concentrations of two materials present in the second surface area or in a distinct depth in the substrate beneath thereof, wherein the two materials comprise Si and B, a concentration of B is greater in the second surface area than in the first surface area.