Setting up ultra-small or ultra-thin discrete components for easy assembly
Among other things a method including releasing a discrete component from an interim handle and depositing a discrete component on a handle substrate, attaching the handle substrate to the discrete component, and removing the handle substrate from the discrete component.
1. An apparatus comprising:
a discrete component having an ultra-thin, an ultra-small, or an ultra-thin and ultra-small configuration;
a handle substrate releasably attached to the discrete component, the handle and the discrete component having a configuration that is thicker and broader than the discrete component;
a release layer attached to the handle substrate such that the discrete component is releasably attached to the release layer,
wherein the release layer includes a first surface and a second surface, the first surface including one or more of a thermal-release surface and a UV release surface, the second surface including an adhesive; and
a tool configured to hold the handle substrate and cause the discrete component to contact an adhesive layer on a device substrate, wherein the tool is a discrete component bonding tool configured to apply a force and temperature profile to cure the adhesive layer on the device substrate.
2. The apparatus of claim 1 in which the release layer is a thermally sensitive material.
3. The apparatus of claim 1 in which the release layer is an ultraviolet light sensitive material.
4. The apparatus of claim 1 in which the release layer comprises a first layer and a second layer.
5. The apparatus of claim 4 in which the second layer is parallel to the first layer.
6. The apparatus of claim 4 in which the first layer is a pressure sensitive adhesive.
7. The apparatus of claim 4 in which the second layer is thermally sensitive.
8. The apparatus of claim 7 in which the thermal sensitivity of the second layer causes a decrease in an adhesive strength in response to heat exceeding a thermal parameter of the adhesive.
9. The apparatus of claim 7 in which the thermal sensitivity of the second layer causes an increase in an adhesive strength in response to heat exceeding a thermal parameter of the adhesive.
10. The apparatus of claim 4 in which the second layer is UV sensitive.
11. The apparatus of claim 10 in which the UV light sensitivity causes an increase in adhesive strength in response to an application of UV light.
12. The apparatus of claim 10 in which the UV light sensitivity causes a decrease in adhesive strength in response to the application of UV light.
13. The apparatus of claim 1 in which the release layer comprises a first layer attached to the handle and a second layer oriented for discrete component deposition.
14. The apparatus of claim 1 in which the handle substrate includes a thickness of between 49 and 801 microns.
15. The apparatus of claim 1 wherein the adhesive is a pressure-sensitive adhesive.
16. An apparatus comprising:
a discrete component having an ultra-thin, an ultra-small, or an ultra-thin and ultra-small configuration;
a handle substrate releasably attached to the discrete component, the handle and the discrete component having a configuration that is thicker and broader than the discrete component;
a release layer attached to the handle substrate such that the discrete component is releasably attached to the release laver,
wherein the release layer includes a first surface and a second surface, the first surface including one or more of a thermal-release surface and a UV release surface, the second surface including an adhesive; and
a tool configured to hold the handle substrate and cause the discrete component to contact an adhesive layer on a device substrate, wherein the tool is a UV-release discrete component bonding tool configured to emit UV light with sufficient intensity to de-bond the discrete component from the handle substrate.
17. An apparatus comprising:
a discrete component having an ultra-thin, an ultra-small, or an ultra-thin and ultra-small configuration;
a handle substrate releasably attached to the discrete component, the handle and the discrete component having a configuration that is thicker and broader than the discrete component; and
a release layer attached to the handle substrate such that the discrete component is releasably attached to the release layer,
wherein the release layer includes a first surface and a second surface, the first surface including one or more of a thermal-release surface and a UV release surface, the second surface including an adhesive,
in which the release layer comprises a first layer and a second layer,
in which the second layer is thermally sensitive,
in which the thermal sensitivity of the second layer causes a decrease in an adhesive strength in response to heat exceeding a thermal parameter of the adhesive.