Method and apparatus for multi-planar edge-extended wafer translator

• US 8,704,544 B2
• Filed: 03/10/2011
• Issued: 04/22/2014
• Est. Priority Date: 06/09/2006
• Status: Active Grant

• Current Assignee: Translarity, Inc.
• Original Assignee: Advanced Inquiry Systems, Inc.
• Inventors: Johnson, Morgan T.
• Primary Examiner(s): PATEL, PARESH H
• Application Number:
  US13/068,152
• Publication Number:
  US 20120139575A1
• Time in Patent Office: 1,139 Days
• Field of Search: None
• US Class Current: 324/754.03
• CPC Class Codes: G01R 31/2851 Testing of integrated circuits [IC] G01R31/317 takes precedence; testing individual devices G01R31/26; testing printed circuits G01R31/2801
• CPC Class Codes: G01R 31/2853 Electrical testing of internal connections or -isolation, e.g. latch-up or chip-to-lead connections G01R31/31717 takes precedence; test of chip-to-PCB or lead-to-PCB connections G01R31/66
• CPC Class Codes: G01R 31/2855 Environmental, reliability or burn-in testing
• CPC Class Codes: G01R 31/2884 using dedicated test connectors, test elements or test circuits on the IC under test G01R31/2855 takes precedence

Abstract

An apparatus, suitable for coupling a pads of integrated circuits on wafer to the pogo pins of a pogo tower in a test system without the need of a probe card, includes a body having a first surface and a second surface, the body having a substantially circular central portion, and a plurality of bendable arms extending outwardly from the central portion, each bendable arm having a connector tab disposed at the distal end thereof; a first plurality of contact terminals disposed on the second surface of the central portion of the body, the first plurality of contact terminals arranged in pattern to match the layout of pads on a wafer to be contacted; at least one contact terminal disposed on the first surface of the plurality of connector tabs; and a plurality of electrically conductive pathways disposed in the body such that each of the first plurality of contact terminals is electrically connected to a corresponding one of the contact terminals on the first surface of the connector tabs.

Claims

1. An apparatus, comprising;

a generally circular body having a first surface facing a first direction and a second surface facing a second direction opposite from the first direction, the body having a substantially circular central portion, and a plurality of bendable arms attached to the central portion in a circular arrangement and extending radially outwardly from the central portion, each bendable arm having a connector tab disposed at a distal end thereof;

a plurality of first contact terminals carried by the central portion of the body and facing the second direction, the first plurality of contact terminals arranged in a pattern to match a layout of a first plurality of pads across a wafer to be contacted, and operable to simultaneously provide electrical connection to the corresponding first plurality of pads;

a plurality of second contact terminals facing the first direction,with individual second contact terminals carried by individual connector tabs;

a plurality of electrically conductive pathways carried by the body to electrically connect corresponding first and second contact terminals on the first surface of the connector tabs; and

wherein the substantially circular central portion of the body is removably attachable to the wafer;

wherein the substantially circular central portion of the body has an area that substantially matches the area of the wafer; and

wherein the plurality of bendable arms extending radially outwardly from the central portion provide electrical pathways that extend beyond- a circumferential edge of the wafer.

2. The apparatus of claim 1, wherein each connector tab has at least one perforation therein,

3. The apparatus of claim 1, wherein the body is a unitary structure

4. The apparatus of claim 1, wherein the connector tabs of the bendable arms are in a plane that is different from the plane in which the central portion is.

5. The apparatus of claim 4, further comprising:

a fixture adapted to receive and mechanically couple with a pogo tower;

wherein at least a portion of the fixture is mechanically coupled to the plurality of bendable arms.

6. The apparatus of claim 5, wherein the pogo tower includes a plurality of pogo pins;

and

wherein each contact terminal carried by the first surface of the connector tabs is in electrical contact with a corresponding pogo pin.

7. The apparatus of claim 1, wherein at least one perforation is provided in at least one of the connector tabs.

8. The apparatus of claim 1, wherein the plurality of bendable arms includes at least three bendable arms extending radially outwardly from the circular central portion.

11. The apparatus of claim 1

wherein different connector tabs are disposed at generally same distance from a center of the circulation central portion.

12. The apparatus of claim 1,

wherein the distal ends of the bendable arms are separated.

9. An apparatus, comprising:

a generally circular body having a first surface facing a first direction and a second surface facing a second direction opposite from the first direction, the body having a substantially circular central portion, and at least three independently bendable arms in a circular arrangement, the bendable arms extending radially from the central portion, each one of the bendable arms having a connector tab disposed toward a distal end thereof;

a plurality of first contact terminals carded by the second surface of the central portion of the body, the first plurality of contact terminals arranged in a pattern corresponding to a layout of a first plurality of pads across a wafer to be contacted, and operable to electrically contact the corresponding first plurality of pads;

plurality of the second contact terminals carried by the first surface of the plurality of connector tabs;

a plurality of electrically conductive pathways electrically connecting the first and the second pluralities of contact terminals;

a fixture adapted to receive and mechanically couple with a pogo tower;

wherein at least a portion of the fixture is mechanically coupled to at least one of the bendable arms;

wherein the substantially circular central portion of the body is removably attachable to the wafer;

wherein the substantially circular central portion of the body has an area that substantially matches the area of the wafer; and

wherein the bendable arms extending radially from the central portion provide electrical pathways that extend beyond a circumferential edge of the wafer.

10. The apparatus of claim 9, wherein the connector tabs of the bendable arms are in a plane that is different from the plane in which the central portion is.