The spectral sensitivity of PSR-4000MP is in the area of 365 nm. Exposure times will vary by bulb type and age of the bulb. Below are guidelines for exposing PSR-4000MP.
Exposure Unit: 5 kW or higher Stouffer Step 21: Clear 8 minimum (on metal / under phototool) Energy: 250 mJ / cm2 minimum (under phototool)
Revised 06-19-03
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Full PDF Text Transcription for PSR-4000MP (Reference)
Note: Below is a high-fidelity text extraction (approx. 800 characters) for
PSR-4000MP. For precise diagrams, and layout, please refer to the original PDF.
ark Green, Matte Finish Excellent Solder Ball Resistance Resistance to No-Clean Flux Residue Wide Processing Window Fine Dam Resolution Withstands ENIG & Immersion Tin Hard Surface Finish Low Odor Revised 06-19-03 www.DataSheet4U.com PROCESSING PARAMETERS FOR PSR-4000MP PSR-4000MP is a two-component, matte dark Green, alkaline developable LPI solder mask product for flood screen and spray application methods. This product has a very low odor, a wide process window and is capable of withstanding alternate metal finishes such as ENIG and immersion Tin. It has a matte Dark Green finish and provides excellent solder ball resis