Flexible circuits, flexible circuit assemblies and assemblies for use with fluid ejection apparatuses
Assemblies for use with a fluid ejection apparatus, flexible circuit assemblies and flexible circuits. One such flexible circuit includes a flexible substrate and conductive lines adjacent the substrate. The conductive lines are capable of being operably connected with bonds of an ejector. Each of the lines has a resistance. At least one of the lines includes a length extension. A line having a length extension has substantially the same resistance as another one of the lines.
1. An assembly for use with a fluid ejection apparatus, comprising:
at least one fluid chamber;
an ejector having bond pads and being in fluid communication with the at least one fluid chamber; and
a flexible circuit comprising a flexible substrate and having conductive lines in connection with contact pads, the conductive lines also being in connection with the bond pads of the ejector, each of the lines having a resistance,
wherein at least one of the lines includes a length extension and wherein a line having a length extension has substantially the same resistance as another one of the lines.
2. The assembly of claim 1 , wherein the length extension comprises a substantially serpentine-like portion of the respective line.
3. The assembly of claim 1 , wherein the length extension comprises a substantially spiral-like portion of the respective line.
4. The assembly of claim 3 , wherein the substantially spiral-like portion of the respective line traverses at least partially around one of the contact pads.
5. The assembly of claim 4 , wherein the one of the contact pads that the substantially spiral-like portion of the respective line traverses at least partially around is connected to the respective line.
6. The assembly of claim 1 , wherein more than one of the lines has a length extension, wherein each of the lines has substantially the same resistance.
7. The assembly of claim 1 , wherein the ejector and the flexible circuit are adhered to a housing.
8. The assembly of claim 7 , wherein the at least one fluid chamber is disposed within the housing.
9. The assembly of claim 7 , wherein the at least one fluid chamber is remote from the housing.
10. The assembly of claim 7 , wherein the at least one fluid chamber is in a selectively removable relationship with the housing.
11. The assembly of claim 1 , wherein the lines comprise traces.
12. The assembly of claim 11 , further comprising a protective material applied to at least a free trace portion of the traces.
13. The assembly of claim 1 , wherein the ejector comprises a printhead chip.
14. The assembly of claim 13 , wherein the printhead chip comprises an actuator chip and a nozzle plate.
15. The assembly of claim 1 , wherein the length extension is proximate to one of the contact pads.
16. The assembly of claim 15 , wherein the one of the contact pads that is proximate to the length extension is connected to the line having the length extension.
17. The assembly of claim 1 , wherein the conductive lines are bonded to the bond pads of the ejector by one of single-point thermosonic bonding, thermocompression bonding, and wire bonding.
18. The assembly of claim 1 , wherein the flexible circuit comprises a tape automated bonding (TAB) circuit.
19. A flexible circuit assembly comprising:
an ejector having bond pads;
a flexible circuit comprising a flexible substrate and having conductive lines in connection with contact pads, the conductive lines also being in connection with the bond pads of the ejector, each of the lines having a resistance,
wherein at least one of the lines includes a length extension and wherein a line having a length extension has substantially the same resistance as another one of the lines.
20. A flexible circuit comprising:
a flexible substrate;
conductive lines adjacent the substrate and being capable of operably connecting with bond pads of an ejector, each of the lines having a resistance; and
contact pads in connection with the conductive lines,
wherein at least one of the lines includes a length extension and wherein a line having a length extension has substantially the same resistance as another one of the lines.