Transfer apparatus and method of manufacturing display apparatus using the same

• US 10,224,316 B2
• Filed: 01/03/2017
• Issued: 03/05/2019
• Est. Priority Date: 02/22/2016
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Oh, Hyunjoon
• Primary Examiner(s): Menz, Laura M
• Application Number:
  US15/396,864
• Publication Number:
  US 20170243772A1
• Time in Patent Office: 791 Days
• CPC Class Codes: B32B 2457/20 Displays, e.g. liquid crystal displays, plasma displays
• CPC Class Codes: B32B 37/025 Transfer laminating
• CPC Class Codes: H01L 21/6835 using temporarily an auxiliary support
• CPC Class Codes: H01L 2221/68354 used to support diced chips prior to mounting
• CPC Class Codes: H01L 2221/68368 used in a transfer process involving at least two transfer steps, i.e. including an intermediate handle substrate
• CPC Class Codes: H01L 2221/68381 Details of chemical or physical process used for separating the auxiliary support from a device or wafer
• CPC Class Codes: H01L 25/167 comprising optoelectronic devices, e.g. LED, photodiodes
• CPC Class Codes: H01L 25/50 Multistep manufacturing processes of assemblies consisting of devices, each device being of a type provided for in group H01L27/00 or H01L29/00 H01L21/50 takes precedence
• CPC Class Codes: H01L 27/1218 with a particular composition or structure of the substrate
• CPC Class Codes: H01L 27/1248 with a particular composition or shape of the interlayer dielectric specially adapted to the circuit arrangement
• CPC Class Codes: H01L 2933/0033 relating to semiconductor body packages
• CPC Class Codes: H01L 2933/0066 relating to arrangements for conducting electric current to or from the semiconductor body
• CPC Class Codes: H01L 33/62 Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls

Abstract

A transfer apparatus includes: a body portion; and an adhesive portion connected to the body portion, with which a point light source of a display apparatus is attachable to and detachable from the transfer apparatus by contact therewith. The adhesive portion is defined by a plurality of surfaces in different planes from each other.

Claims

1. A transfer apparatus comprising:

a body portion; and

an adhesive portion connected to the body portion, with which a point light source of a display apparatus is attachable to and detachable from the transfer apparatus by contact therewith,

wherein the adhesive portion is defined by a plurality of surfaces in different planes from each other.

2. The transfer apparatus of claim 1, wherein the body portion comprises an elastomer.

3. The transfer apparatus of claim 1, wherein the adhesive portion defines a first surface of the body portion.

4. The transfer apparatus of claim 3, wherein the body portion defines a second surface thereof which faces the first surface.

5. The transfer apparatus of claim 1, wherein a thickness of the body portion is non-uniform to define the plurality of the surfaces of the adhesive portion in different planes from each other.

6. The transfer apparatus of claim 1, wherein the plurality of surfaces of the adhesive portion in different planes from each other is defined by a plurality of sub-adhesive portions at different heights with respect to a common surface of the body portion.

7. The transfer apparatus of claim 6, wherein

the point light source is provided in plurality, each of which is attachable to and detachable from the transfer apparatus by contact with the adhesive portion, and

among the plurality of point light sources, at least one point light source is attachable to and detachable from the transfer apparatus with each of the plurality of sub-adhesive portions at the different heights with respect to the common surface of the body portion.

8. The transfer apparatus of claim 6, wherein the different heights of the plurality of sub-adhesive portions discontinuously change with respect to the common surface of the body portion.

9. The transfer apparatus of claim 6, wherein the different heights of the plurality of sub-adhesive portions are adjustable with respect to the common surface of the body portion.

10. The transfer apparatus of claim 6, wherein

the different heights of the plurality of sub-adhesive portions defines an original state of the transfer apparatus, and

in a deformed state of the transfer apparatus by an external pressure applied to the original state of the transfer apparatus, the plurality of sub-adhesive portions are disposed at a same height as each other with respect to the common surface of the body portion.

11. The transfer apparatus of claim 6, further comprising a plurality of sub-connectors respectively connecting the plurality of sub-adhesive portions to the body portion.

12. The transfer apparatus of claim 11, wherein a length of each of the plurality of sub-connectors is adjustable.

13. The transfer apparatus of claim 1, wherein a portion of the adhesive portion that contacts the point light source has a convex shape before contact with the point light source.