Heater

2:

• The heater coupon according to claim 1, wherein the connector connects at one end to the heater coupon and at the other end to the PCB.

3:

• The heater coupon according to claim 1, wherein the connector provides a direct connection between the heater coupon and the PCB.

4:

• The heater coupon according to claim 1, wherein the connector comprises a first connecting arm for connecting with respect to the first surface of the ceramic block and a second connecting arm for connecting with respect to the second surface of the ceramic block.

5:

• The heater coupon according to claim 1, wherein the connector is located at an end of the ceramic block.

6:

• The heater coupon according to claim 1, wherein the ceramic block is formed from a plurality of layers of ceramic material.

7:

• The heater coupon according to claim 1, wherein the at least one heater trace is screen printed onto one of the layers of ceramic sheet that form the ceramic block.

8:

• The heater coupon according to claim 1, wherein the ceramic block is provided with a first recess for accommodating the first connecting arm and a second recess for accommodating the second connecting arm.

9:

• The heater coupon according to claim 8, wherein the first recess has a wall and a tab, the wall defining a depth of the recess within the ceramic block and delimiting an area of the tab and the tab providing a surface to which the first connecting arm can be attached.

10:

• The heater coupon according to claim 9, wherein the first recess extends from the first surface to the heater trace.

11:

• The heater coupon according to claim 9, wherein the second recess has a wall and a tab, the wall defining a depth of the recess within the ceramic block and delimiting an area of the tab and the tab providing a surface to which the second connecting arm can be attached.

12:

• The heater coupon according to claim 11, wherein the second recess extends from the second surface to the heater trace.

13:

• The heater coupon according to claim 10, wherein the first recess and the second recess are substantially the same depth and area.

14:

• The heater coupon according to claim 1, wherein at least two connectors are provided and the at least two connectors are electrically isolated from each other.

15:

• The heater coupon according to claim 1, wherein an integrated thermal sensor is formed within the ceramic block.

16:

• The heater coupon according to claim 15, wherein the integrated thermal sensor is connected to an external wire via a further said connector.

17:

• A heater coupon according to claim 11, wherein the second recess extends from the second surface to the integrated thermal sensor.

18:

• The heater coupon according to claim 15, wherein the ceramic block is provided with a third recess for accommodating the first connecting arm of the further said connector and a fourth recess for accommodating the second connecting arm of the further said connector.

19:

• The heater coupon according to claim 18, wherein the third recess has a wall and a tab, the wall defining a depth of the recess within the ceramic block and delimiting an area of the tab and the tab providing a surface to which the first connecting arm of the further said connector can be attached.

20:

• The heater coupon according to claim 19, wherein the fourth recess extends from the first surface to the heater trace layer.

21:

• The heater coupon according to claim 19 wherein the fourth recess has a wall and a tab, the wall defining a depth of the recess within the ceramic block and delimiting an area of the tab and the tab providing a surface to which the second connecting arm of the further said connector can be attached.

22:

• The heater coupon according to claim 21, wherein the fourth recess extends from the second surface and the integrated thermal sensor is exposed to the second connecting arm of the further said connector.