Claims
- 1. A component for a Printhead of a printer comprising:
- a flexible substrate having a plurality of spaced-apart resistors on a surface thereof, the resistors being supported on the surface by a plurality of discrete, thermal barriers, each of the thermal barriers being spaced-out from the adjacent thermal barriers and supporting a respective one of the resistors;
- such that:
- bending the substrate 180 degrees in an area without the thermal barriers will not substantially affect the electrical performance of the printhead; and
- the resistors are for generating heat to eject ink from the printhead.
- 2. The component of claim 1, wherein the thermal barrier comprises a layer of dielectric material.
- 3. A component for a printhead of a printer comprising:
- a flexible substrate having a plurality of spaced-apart resistors on a surface thereof, the resistors being supported on the surface by a plurality of discrete thermal barriers, each of the thermal barriers being spaced-out from the adjacent thermal barriers and supporting a respective one of the resistors; and
- each thermal barrier comprising a layer of dielectric material;
- wherein each thermal barrier further includes a heat-spread layer of material between the dielectric material and the substrate;
- such that:
- bending the substrate by 180 degrees in an area without the thermal barriers will not substantially affect the electrical performance of the printhead.
- 4. The component of claim 3, wherein the substrate comprises a polymer material and an adhesion layer is provided between the heat-spread layer and the substrate.
- 5. The component of claim 4, wherein the adhesion layer comprises chromium, the heat-spread layer comprises titanium, the dielectric material comprises silicon dioxide and the resistors comprise tantalum-aluminum.
CROSS REFERENCE TO RELATED APPLICATION
This is a continuation of application Ser. No. 07/965,639 filed on Oct. 23, 1992, now abandoned.
US Referenced Citations (7)
Foreign Referenced Citations (1)
Number |
Date |
Country |
0 367 303 A1 |
May 1990 |
EPX |
Continuations (1)
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Number |
Date |
Country |
Parent |
965639 |
Oct 1992 |
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