Electronic circuit assembly having high contrast fiducial
AssigneeITT Manufacturing Enterprises, Inc.
InventorsStephen J. Wagner, Barbara B. Myrvaagnes
Life of this patent
Estimating the term…
Abstract
An electronic circuit assembly having a fiducial on a lower layer substrate. The fiducial is viewed through a through hole that is aligned with the fiducial and extends through an upper layer substrate that is adjacent the lower layer substrate. The fiducial and the through hole provide a high contrast between the fiducial and the surrounding substrate permitting viewing and recognition of substrate orientation by a computer vision system.
Claims17
An electronic circuit assembly comprising:
- a lower layer ceramic substrate having a pigmented fiducial;
- and
- an upper layer ceramic substrate adjacent said lower layer substrate, a through hole extending through said upper layer substrate and aligned with said fiducial on said lower layer substrate, said pigmented fiducial having a high contrast relative to said upper layer ceramic substrate to provide a high contrasting image between said fiducial and said upper layer substrate, wherein the size of said fiducial on said lower layer substrate is greater than the size of said through hole extending through said upper layer substrate.
An electronic circuit assembly comprising:
- a lower layer ceramic substrate having a pigmented fiducial;
- and
- an upper layer ceramic substrate adjacent said lower layer substrate, a through hole extending through said upper layer substrate and aligned with said fiducial on said lower layer substrate, said pigmented fiducial having a high contrast relative to said upper layer ceramic substrate to provide a high contrasting image between said fiducial and said upper layer substrate, wherein said fiducial is black.
An electronic circuit assembly comprising:
- a lower layer ceramic substrate having a pigmented fiducial;
- and
- an upper layer ceramic substrate adjacent said lower layer substrate, a through hole extending through said upper layer substrate and aligned with said fiducial on said lower layer substrate, said pigmented fiducial having a high contrast relative to said upper layer ceramic substrate to provide a high contrasting image between said fiducial and said upper layer substrate. wherein the lower ceramic substrate is carried on a chassis on which a chip is carried and wherein said through hole extending through said upper layer substrate and said fiducial on said lower layer substrate are outside of and spaced from the bounds of said chip.
An electronic circuit assembly comprising:
- a lower layer substrate having a black fiducial made of FERRO FX-87-011 resistor material;
- and
- an upper layer substrate adjacent said lower layer substrate and having circuit components thereon and a through hole extending through said upper layer substrate and aligned with said fiducial on said lower layer substrate, the size of said fiducial on said lower layer substrate is greater than the size of said through hole extending through said upper layer substrate.
An electronic circuit assembly comprising:
- a lower layer substrate having a black fiducial made of FERRO FX-87-011 resistor material;
- and
- an upper layer substrate adjacent said lower layer substrate and having circuit components thereon and a through hole extending through said upper layer substrate and aligned with said fiducial on said lower layer substrate, the size of said fiducial on said lower layer substrate being greater than the size of said through hole extending through said upper layer substrate, and said through hole extending through said upper layer substrate and said fiducial on said lower layer substrate are outside of and spaced from the bounds of the circuitry composed of said components on said upper layer substrate.
An electronic circuit assembly comprising:
- a chassis having a surface on which a chip is carried;
- and,
- a ceramic substrate carried on the chassis, said substrate being formed with an opening exposing said chip;
- said ceramic substrate having a pigmented fiducial providing a high contrast with said substrate such that said fiducial can be viewed from above the assembly.
Dependencies are inferred from the claim text.