Disk having an electric connecting element and compensator plates

1. A pane with at least one connection element with compensator plates, comprising:

a substrate with an electrically conductive structure on at least one part of the substrate;

at least one compensator plate on at least one part of the conductive structure;

at least one electrical connection element on at least one part of the at least one compensator plate; and

a leadfree soldering compound, which connects the compensator plate via at least one contact surface to at least one part of the electrically conductive structure,

wherein the difference of the coefficients of thermal expansion of the substrate and the compensator plate is less than 5×10 −6 /° C.,

wherein the connection element contains copper, and

wherein the electrical connection element is electrically conductively connected via a first compensator plate and a second compensator plate to the electrically conductive structure.

2. The pane according to claim 1 , wherein the compensator plates and the contact surfaces have no corners.

3. The pane according to claim 1 wherein the compensator plates contain titanium, iron, nickel, cobalt, molybdenum, copper, zinc, tin, manganese, niobium, and/or chromium and/or alloys thereof, preferably iron alloys.

4. The pane according to claim 3 , wherein the compensator plates contain at least 66.5 wt.-% to 89.5 wt.-% iron, 10.5 wt.-% to 20 wt.-% chromium, 0 wt.-% to 1 wt.-% carbon, 0 wt.-% to 5 wt.-% nickel, 0 wt.-% to 2 wt.-% manganese, 0 wt.-% to 2.5 wt.-% molybdenum, 0 wt.-% to 2 wt.-% niobium, and 0 wt.-% to 1 wt.-% titanium.

5. The pane according to claim 4 , wherein the compensator plates contain at least 77 wt.-% to 84 wt.-% iron, 16 wt.-% to 18.5 wt.-% chromium, 0 wt.-% to 0.1 wt.-% carbon, 0 wt.-% to 1 wt.-% manganese, 0 wt.-% to 1 wt.-% niobium, 0 wt.-% to 1.5 wt.-% molybdenum, and 0 wt.-% to 1 wt.-% titanium.

6. The pane according to claim 1 , wherein the connection element contains 45.0 wt.-% to 99.9 wt.-% copper, 0 wt.-% to 45 wt.-% zinc, 0 wt.-% to 15 wt.-% tin, 0 wt.-% to 30 wt.-% nickel, and 0 wt.-% to 5 wt.-% silicon.

7. The pane according to claim 6 , wherein the connection element contains 58 wt.-% to 99.9 wt.-% copper, and 0 wt.-% to 37.0 wt.-% zinc, preferably 60 wt.-% to 80 wt.-% copper and 20 wt.-% to 40 wt.-% zinc.

8. The pane according to claim 1 , wherein the electrically conductive structure contains at least silver, preferably silver particles and glass frits, and has a layer thickness from 5 μm to 40 μm.

9. The pane according to claim 1 , wherein the substrate contains glass, preferably flat glass, float glass, quartz glass, borosilicate glass, and/or soda lime glass.

10. The pane according to claim 1 , wherein the leadfree soldering compound contains tin, bismuth, indium, zinc, copper, silver, and/or mixtures and/or alloys thereof.

11. The pane according to claim 10 , wherein the leadfree soldering compound contains 35 wt.-% to 69 wt.-% bismuth, 30 wt.-% to 50 wt.-% tin, 1 wt.-% to 10 wt.-% silver, and 0 wt.-% to 5 wt.-% copper.

12. A method for producing the pane according to claim 1 , wherein:

a connection element is electrically conductively attached on the top of one or a plurality of compensator plates,

a leadfree soldering compound is applied on at least one contact surface on the bottom of the compensator plates,

the compensator plates are arranged with the leadfree soldering compound on an electrically conductive structure on a substrate, and

the compensator plates are soldered to the electrically conductive structure.

13. A method of using a pane with electrically conductive structures, comprising:

providing the pane according to claim 1 ; and

installing the pane in motor vehicles, aircraft, ships, architectural glazing, or structural glazing.

14. The method of using the pane according to claim 13 , wherein the electrically conductive structures are heating conductors and/or antenna conductors.