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ACCIS Automated Conformal Coating Inspection System Presentation

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Information about ACCIS Automated Conformal Coating Inspection System Presentation
Technology

Published on February 23, 2009

Author: ConformalCoating

Source: slideshare.net

Description

A presentation on ACCIS an Automated Conformal Coating Inspection System developed by SCH Technologies.
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ACCIS Automated Conformal Coating Inspection

Who are SCH? Based in South Yorkshire, UK UK conformal coating service UK Humiseal materials Manufacturer of equipment

Who are SCH?

Based in South Yorkshire, UK

UK conformal coating service

UK Humiseal materials

Manufacturer of equipment

What is coating inspection? Inspection is used to determine correct application of conformal coating: Coating in the right areas Areas not to be coated / to be coating free Correctly applied coating i.e. defect free

Inspection is used to determine correct application of conformal coating:

Coating in the right areas

Areas not to be coated / to be coating free

Correctly applied coating i.e. defect free

Typical Coating Inspection

Conformal Coating Standards There are several standards: IPC-CC-830B manufacturers standard IPC-A-610 Inspection criteria IPC-HDBK-830 Handbook for conformal coating

There are several standards:

IPC-CC-830B manufacturers standard

IPC-A-610 Inspection criteria

IPC-HDBK-830 Handbook for conformal coating

Standard IPC-A-610 requirements... No loss of adhesion No voids or bubbles No de-wetting, mealing, peeling, wrinkles, cracks, ripples, fisheyes or orange peel No embedded / entrapped foreign material No discolouration or loss of transparency

No loss of adhesion

No voids or bubbles

No de-wetting, mealing, peeling, wrinkles, cracks, ripples, fisheyes or orange peel

No embedded / entrapped foreign material

No discolouration or loss of transparency

Inspection Standards Examples

Inspection Issues Manual process – prone to error by operator Different standards between operators Time consuming No traceable recording of inspection

Manual process – prone to error by operator

Different standards between operators

Time consuming

No traceable recording of inspection

Solution - Automated Inspection Automated process – repeatable results The same standard across all boards High speed multiple board inspection Traceable data of inspection stored

Automated process – repeatable results

The same standard across all boards

High speed multiple board inspection

Traceable data of inspection stored

ACCIS - Automated Conformal Coating Inspection System Batch and SMEMA inline inspection processing High speed multiple board inspection Traceable data from inspection stored

Batch and SMEMA inline inspection processing

High speed multiple board inspection

Traceable data from inspection stored

ACCIS - Automated Conformal Coating Inspection System Confirmation of correctly applied coating Detection where coating should not be Identifies defects such as cracks, de-lamination and de-wetting

Confirmation of correctly applied coating

Detection where coating should not be

Identifies defects such as cracks, de-lamination and de-wetting

ACCIS – Example Application by selective robot system High volume high speed application Critical keep out areas KEEP OUT ZONES

Application by selective robot system

High volume high speed application

Critical keep out areas

ACCIS – Example Stage 1: Image is captured under controlled UVA light set up

Stage 1:

Image is captured under controlled UVA light set up

ACCIS – Example Stage 2: Image is converted to greyscale using the software Software checks for keep out areas for correct processing

Stage 2:

Image is converted to greyscale using the software

Software checks for keep out areas for correct processing

ACCIS – Example Example of a badly coated PCB

Example of a badly coated PCB

ACCIS – Further Example

ACCIS – Further Example

ACCIS – Further Example

ACCIS – Standard System Uses TOM (Teachable Object Module) software for easily defined inspection Allows varied board types and sizes to be tested Easy to use GUI allows quick definition of where coating coverage should and should not be With the built in identification algorithms, different defect types can be identified

Uses TOM (Teachable Object Module) software for easily defined inspection

Allows varied board types and sizes to be tested

Easy to use GUI allows quick definition of where coating coverage should and should not be

With the built in identification algorithms, different defect types can be identified

ACCIS – Standard System System Capabilities Batch System Standard board size: 350 x 250mm SMEMA Inline System Standard board size: 350 x 250mm (Alternate set ups for larger fields available)

Any questions....?

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