00198487-02_Operation_Manual_E_by_DEK_EN.pdf - 第44页

Operation - Defect Handling 44 Incomplete – Not enough paste in front of squeegee Tooling too high or missing Paste cold or dry Stencil blocked or damaged Squeegees are damaged Bridging – Paste temperature is too hot Too…

Operation - Defect Handling

10 Operation - Defect Handling

Excess Print height –

Tooling missing

Paste temperature incorrect

Damaged squeegees

Damaged stencil

Stencil Surface not clean

Misalignment –

Tooling too high or missing

Wrong stencil (check revision)

Fiducial damage on stencil

Poor board quality / different batch of boards

Operation - Defect Handling

Incomplete –

Not enough paste in front of squeegee

Tooling too high or missing

Paste cold or dry

Stencil blocked or damaged

Squeegees are damaged

Bridging –

Paste temperature is too hot

Tooling too low or missing

Damaged Stencil

Operation - Defect Handling

Inspect condition of process hardware

Reference: Operator best working practices manual

Prior to using any process hardware it should be inspected to ensure it is fit for function. I.e. Clean and free from damage

and it is the correct specification as defined by the process design.

Failure to do this may result in machine error messages and print defects.

Process hardware:

Paste:

Stencil:

Squeegees:

Tooling:

USC Fabric:

Solvent: