US5027295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for inspecting packaged electronic device
Assignee: Omron Corp
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Filing: 1990-05-09
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Granted: 1991-06-25
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Expires: 2010-05-09
Abstract
Abstract A packaged substrate inspecting apparatus comprises an imaging device for picking up images of substrates. Land images are extracted from the image of a non-packaged substrate and that of a packaged substrate. On the basis of the shapes of the land extracted from the non-packaged substrate and those of the packaged substrate, positional relationship between a part mounted on the packaged substrate and the land is determined to be utilized for deciding whether the mounted state of the part on the substrate is to be satisfactory or not.
Inventors
- 👤 Teruhisa Yotsuya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:49
CPC Classifications
G; G06; G06T; G06T7/00; G06T7/0002; G01; G01N; G01N21/00; G01N21/84; G01N21/88; G01N21/95; G01N21/956; G01N21/95684; G06T7/70; G06T2207/00; G06T2207/30; G06T2207/30108; G06T2207/30148
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
74 words
A component-mounted printed circuit board inspecting apparatus, comprising: image taking means for taking color images of a printed circuit board; hue value conversion means for producing red hue values for individual pixels of the color images produced by said image taking means; and decision means for deciding if a pixel belongs to a copper foil portion of a conductor land by determining if the red hue value of said pixel exceeds a predetermined value.
Claim 2
Dependent Claim
74 words
A component-mounted printed circuit board inspecting apparatus, comprising: image taking means for taking color images of a printed circuit board; hue value conversion means for producing red hue values for individual pixels of the color images produced by said image taking means; and decision means for deciding if a pixel belongs to a copper foil portion of a conductor land by determining if the red hue value of said pixel exceeds a predetermined value.
Claim 3
Dependent Claim
41 words
A component-mounted printed circuit board inspecting apparatus according to claim 1, wherein said components comprise a plurality of different types of components, and wherein said predetermined range of permissible positional deviation is optimized for each of the different types of components.
Claim 4
Dependent Claim
126 words
A component-mounted printed circuit board inspecting apparatus, comprising: image taking means for producing color images of a bare printed circuit board and a component-mounted printed circuit board; land extracting means for extracting conductor lands on which components are to be mounted from said images produced by the image taking means and for obtaining geometrical data of the conductor lands; positional relation determining means for determining positional relationships between the lands of the component-mounted board and components mounted thereon on the basis of said geometrical data obtained by the land extracting means; and decision means for deciding if placement of at least one of the components is within a predetermined range of permissible positional deviation based on said positional relationships obtained by the positional relation determining means.
Claim 5
Dependent Claim
126 words
A component-mounted printed circuit board inspecting apparatus, comprising: image taking means for producing color images of a bare printed circuit board and a component-mounted printed circuit board; land extracting means for extracting conductor lands on which components are to be mounted from said images produced by the image taking means and for obtaining geometrical data of the conductor lands; positional relation determining means for determining positional relationships between the lands of the component-mounted board and components mounted thereon on the basis of said geometrical data obtained by the land extracting means; and decision means for deciding if placement of at least one of the components is within a predetermined range of permissible positional deviation based on said positional relationships obtained by the positional relation determining means.
Claim 6
Dependent Claim
31 words
A component-mounted printed circuit board inspecting apparatus according to claim 3, wherein said geometrical data obtained by said land extracting means is subjected to hue value conversion for the conductor lands.
Claim 7
Dependent Claim
41 words
A component-mounted printed circuit board inspecting apparatus according to claim 4, wherein said components comprise a plurality of different types of components, and wherein said predetermined range of permissible positional deviation is optimized for each of the different types of components.
Claim 8
Dependent Claim
110 words
A component-mounted printed circuit board inspecting apparatus, comprising: imaging means for taking first images of a printed circuit board; image extracting means for extracting second images within a plausible land existing area from said first images of a printed circuit board on the basis of previously inputted data concerning location and geometrical configuration of a component; land extracting means for extracting a land image from said second image; and decision means for deciding if placement of at least one of the components is within a predetermined range of permissible positional deviation based on said land image and said previously inputted data concerning the location and geometrical configuration of said component.
Claim 9
Dependent Claim
110 words
A component-mounted printed circuit board inspecting apparatus, comprising: imaging means for taking first images of a printed circuit board; image extracting means for extracting second images within a plausible land existing area from said first images of a printed circuit board on the basis of previously inputted data concerning location and geometrical configuration of a component; land extracting means for extracting a land image from said second image; and decision means for deciding if placement of at least one of the components is within a predetermined range of permissible positional deviation based on said land image and said previously inputted data concerning the location and geometrical configuration of said component.
Claim 10
Dependent Claim
30 words
A component-mounted printed circuit board inspecting apparatus according to claim 6, further including display means for displaying the result of a decision of proper of improper placement of a component.
Claim 11
Dependent Claim
22 words
A component-mounted printed circuit board inspecting apparatus according to claim 6, further including printer means for printing results of the decision means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-06-24 | 1994-12-24 | 1995-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-24 | 1998-12-24 | 1999-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-24 | 2002-12-24 | 2003-06-25 | $7700.00 | Window Closed / Lapsed |