Abstract:
The probe card assembly (500) includes a probe card (502), and a space transformer (506) having resilient contact structures (524) mounted to and extending from terminals (522) on its surface. An interposer (504) is disposed between the space transformer and the probe card. The space transformer and interposer are stacked on the probe card and the resilient contact structures can be arranged to optimise probing of entire wafer.
Abstract:
The probe card assembly (500) includes a probe card (502), and a space transformer (506) having resilient contact structures (524) mounted to and extending from terminals (522) on its surface. An interposer (504) is disposed between the space transformer and the probe card. The space transformer and interposer are stacked on the probe card and the resilient contact structures can be arranged to optimise probing of entire wafer.
Abstract:
A base controller (210) disposed in a test cassette (110) receives test data for testing a plurality of electronic devices (236a,236b). The base controller wirelessly transmits the test data to a plurality of wireless test control chips (214a,214b,214c,214d,214e,214f,214g), which write the test data to each of the electronic devices. The wireless test control chips (214a,214b,214c,214d,214e,214f,214g), then read response data generated by the electronic devices (236a, 236b), and the wireless test control chips wirelessly transmit the response data to the base controller (210).
Abstract:
An apparatus and method providing improved interconnection elements and tip structures for effecting pressure connections between terminals of electronic components is described. The tip structure of the present invention has a sharpened blade oriented on the upper surface of the tip structure such that the length of the blade is substantially parallel to the direction of horizontal movement of the tip structure as the tip structure deflects across the terminal of an electronic component. In this manner, the sharpened substantially parallel oriented blade slices cleanly through any non-conductive layer(s) on the surface of the terminal and provides a reliable electrical connection between the interconnection element and the terminal of the electrical component.
Abstract:
The probe card assembly (500) includes a probe card (502), and a space transformer (506) having resilient contact structures (524) mounted to and extending from terminals (522) on its surface. An interposer (504) is disposed between the space transformer and the probe card. The space transformer and interposer are stacked on the probe card and the resilient contact structures can be arranged to optimise probing of entire wafer.
Abstract:
An interconnection contact structure assembly including an electronic component (102) having a surface and a conductive contact terminal (103) carried by the electronic component (102) and accessible at the surface. The contact structure (101) includes an internal flexible elongate member (106) having first (107) and second ends (108) and with the first end (107) forming a first intimate bond to the surface of the conductive contact terminal (103) without the use of a separate bonding material. An electrically conductive shell (116) is provided and is formed of at least one layer of a conductive material enveloping the elongate member (106) and forming a second intimate bond with at least a portion of the conductive contact terminal immediately adjacent the first intimate bond.
Abstract:
Interconnection elements (550) for electronic components (556), exhibiting desirable mechanical characteristics (such as resiliency), for making pressure contact(s) are formed by shaping a ribbon-like core element (552) of a soft material (such as gold or soft copper) to have a springable shape (including cantilever beam, S-shape, U-shape), and overcoating the shaped core element with a hard material (558) such as nickel and it alloys, to impart a desired spring (resilient) characteristic to the resulting composite interconnection element (550). A final overcoat of a material (220) having superior electrical qualities (e.g., electrical conductivity and/or solderability) may be applied to the composite interconnection element (200). The resulting interconnection elements (500, 550) may be mounted to a variety of electronic components.
Abstract:
Resilient contact structures (430) are mounted directly to bond pads (410) on semiconductor dies (402a, 402b), prior to the dies (402a, 402b) being singulated (separated) from a semiconductor wafer. This enables the semiconductor dies (402a, 402b) to be exercised (e.g., tested and/or burned-in) by connecting to the semiconductor dies (702, 704) with a circuit board (710) or the like having a plurality of terminals (712) disposed on a surface thereof. Subsequently, the semiconductor dies (402a, 402b) may be singulated from the semiconductor wafer, whereupon the same resilient contact structures (430) can be used to effect interconnections between the semiconductor dies and other electronic components (such as wiring substrates, semiconductor packages, etc.). Using the all-metallic composite interconnection elements (430) of the present invention as the resilient contact structures, burn-in (792) can be performed at temperatures of at least 150 °C, and can be completed in less than 60 minutes.
Abstract:
Probe array structures and methods of making probe array structures are disclosed. A plurality of electrically conductive elongate contact structures disposed on a first substrate can be provided. The contact structures can then be partially encased in a securing material such that ends of the contact structures extend from a surface of the securing material. The exposed portions of the contact structures can then be captured in a second substrate.
Abstract:
An exemplary die carrier is disclosed. In some embodiments, the die carrier can hold a plurality of singulated dies while the dies are tested. The dies can be arranged on the carrier in a pattern that facilities testing the dies. The carrier can be configured to allow interchangeable interfaces to different testers to be attached to and detached from the carrier. The carrier can also be configured as a shipping container for the dies.