massereich
English translation: high mass PCB
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| 17:08 Jul 30, 2004 |
| German to English translations [PRO] Tech/Engineering - Electronics / Elect Eng | |||||||
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|  Selected response from: Klaus Herrmann Germany Local time: 20:59 | ||||||
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| Summary of answers provided | ||||
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| 4 +1 | high mass PCB |
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| 4 | large earth planes / copper areas |
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| Discussion entries: 1 | |
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Answers
27 mins confidence: 
peer agreement (net): +1
peer agreement (net): +1high mass PCB Explanation: Densely populated doesn't necessarily mean high mass, and mass is what the Turbo button is used for (adding an extra heater, I suppose). SMT in FOCUS - The Web Portal For Surface Mount Technology ... PCB. If the population and mass of the PCB is light the dwell time can be shorter than for a heavy populated and high mass PCB. If ... www.smtinfocus.com/processguide_reflow.html There's another possible meaning - many many many ground tracks. I doubt that's meant because a Turbo button wouldn't serve any purpose in this case. |
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14 hrs confidence:
large earth planes / copper areas Explanation: "Earth Plane: Name given to large area of copper. Often used to provide electrical screening and control the characteristic impedance of signal tracks." (my addition: also used for power dissipation) When soldering to such large copper areas, the applied heat can be insufficient. Therefore a 'turbo' mode is useful (more heat). Reference: http://www.p-m-services.demon.co.uk/pcb_terms.htm |
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| The asker has declined this answer Comment: Thanks John for your technical insight. I hadn't considered that "Masse" might have something to do with earth. In the end I decided to go for the other answer as I can fit it into the context better (and for time reasons). Will research your link though and try to get my head round this. | ||
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