Patent ID: 11921054
Assignee: GLOBALWAFERS CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 13:
14. A black box for imaging a semiconductor wafer, the black box comprising:
shroud panels defining an upper chamber and a lower chamber, a support plate separates the upper chamber from the lower chamber, a bottom shroud panel at least partially defines the lower chamber and defines a wafer opening, the support plate defines a camera opening;
a camera positioned in the upper chamber for imaging the semiconductor wafer; and
an illumination panel for directing diffuse light to the semiconductor wafer, wherein the diffuse light is transmitted to the semiconductor wafer through the wafer opening, and wherein a portion of the diffuse light is reflected off the semiconductor wafer through the wafer opening and the camera opening and the camera images the semiconductor wafer by detecting the reflected diffuse light.