Picktip having non-planar topography

Patent metadata

Field	Value
Publication number	US-9701872-B2
Application number	US-201414493980-A
Country	US
Kind code	B2
Filing date	Sep 23, 2014
Priority date	Sep 23, 2014
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

A picktip is provided and includes a picktip member configured to extend along a longitudinal axis defined in parallel with emissions from an ultraviolet (UV) light source. The picktip member partially includes UV transparent material through which the emissions are directed and has an end face from which the emissions are exited. The picktip member defines vacuum pathways terminating at the end face, and the end face has a non-planar topography.

First claim

What is claimed is:

1. A picktip, comprising:
a picktip member configured to extend along a longitudinal axis defined in parallel with emissions from an ultraviolet (UV) light source;
the picktip member partially comprising UV transparent material through which the emissions are directed and having an end face from which the emissions are exited;
the picktip member defining vacuum pathways terminating at the end face; and
the end face having a non-planar topography.

2. The picktip according to claim 1 , wherein the picktip member comprises:
a main portion defining a main vacuum pathway and sub-pathways communicative with the main vacuum pathway; and
a tapered tip portion defining extensions of the sub-pathways toward the end face.

3. The picktip according to claim 2 , wherein the extensions of the sub-pathways are defined at opposite sides of the tapered tip portion.

4. The picktip according to claim 2 , wherein cross-sections of the extensions of the sub-pathways are T-shaped.

5. The picktip according to claim 1 , wherein:
the picktip member comprises a body through which the vacuum pathways extend,
the end face is defined at a most-distant end of the body of the picktip member along the longitudinal axis, and
the body being formed such that the non-planar topography comprises recessions defined to recede inwardly from a plane of terminals of the vacuum pathways at the end face.

6. The picktip according to claim 5 , wherein the non-planar topography comprises a chamfered side region.

7. The picktip according to claim 5 , wherein the non-planar topography is non-axisymmetric.

8. A picktip apparatus, comprising:
a picktip partially comprising ultraviolet (UV) transparent material, the picktip having a first end face, a second end face opposite the first end face from which UV light passing through the UV transparent material is exited and defining vacuum pathways terminating at the second end face;
an optical element configured to emit the UV light; and
a window element disposable along an optical path of the UV light; and
a spine configured to secure the picktip, the optical element and the window element such that a vacuum region communicative with the vacuum pathways is defined between the picktip and the window element;
the vacuum region comprising a first portion disposed along a plane of the first end face and a second portion oriented transversely with respect to the first portion.

9. The picktip apparatus according to claim 8 , wherein the second end face has a non-planar topography.

10. The picktip apparatus according to claim 8 , wherein the non-planar topography comprises recessions defined to recede from a plane of terminals of the vacuum pathways.

11. The picktip apparatus according to claim 8 , wherein the non-planar topography comprises a chamfered side region.

12. The picktip apparatus according to claim 8 , wherein the non-planar topography is non-axisymmetric.

13. The picktip apparatus according to claim 8 , wherein the window element comprises a lens.

14. The picktip apparatus according to claim 8 , further comprising a reflective element coupled to the spine to redirect the UV light.

15. The picktip apparatus according to claim 8 , further comprising:
a light source disposed externally from the spine; and
an optical cable by which the light source is optically coupled to the optical element.

16. The picktip apparatus according to claim 8 , further comprising:
a light source disposed externally from the spine; and
a secondary spine supportive of the light source, the secondary spine being movable independent of the spine.

Assignees

• IBM

Inventors

• Barwicz Tymon
• Fortier Paul F
• Harel Stephane
• Laflamme Simon
• Thivierge Roch

Classifications

• B29C66/81267

  Transparent to electromagnetic radiation, e.g. to visible light · CPC title

• B29C65/1406

  Ultraviolet [UV] radiation · CPC title

• C09J5/00 Primary

  Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers · CPC title

• F16B11/006

  by gluing (gluing of plastics material B29C65/48) · CPC title

• B29C65/7847

  using vacuum to hold at least one of the parts to be joined (vacuum work holders in general B25B11/005) · CPC title