New Equipment | Industrial Automation
Sales Manager: Sandy Lin Email: unity@mvme.cn Skype: onlywnn_1 Mobile(Whatsapp): (+86)-18020776786 XIAMEN YUEHANG COMPUTER ENGINEERING CO.LTD. is a company that professionally engaged in large system DCS spare parts supply. We supply DCS, PLC, M
Electronics Forum | Mon Sep 21 08:14:14 EDT 1998 | Steve Gregory
| Hello: | I would like to know what causes tombstombing and how can it be prevented? | Thx. | Nichol Hi Nichol! A tombstone happens when solder doesn't wet equally on both terminations during reflow...now why that happens can be found by looking at
Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2018/07/pan_APEX06.pdf
). Figure 2 shows a sample lead-free reflow profile. Figure 2. A sample lead-free reflow profile Since it is a 32 factorial design with three replications, 27 boards were assembled using SnPb paste and 27 boards were assembled using SAC305 paste
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