#26 [Production] OMAP3 and PoP Memory soldering errors

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Houkime6 年之前创建 · 0 条评论
Houkime 评论于 6 年之前

Was encountered in GTA04A5 (online sch) production and probably affects neo900 as well

Processor - Omap3
Memory - MT29C8G96MAZBADJV-5

Was encountered in GTA04A5 ([online sch](https://www.electronicsdatasheets.com/manufacturers/golden-delicious-computers/parts/gta04a5)) production and probably affects neo900 as well Processor - Omap3 Memory - [MT29C8G96MAZBADJV-5](https://www.digikey.com/product-detail/en/micron-technology-inc/MT29C8G96MAZBADJV-5-WT/MT29C8G96MAZBADJV-5WT-ND/4315652) * Processor and memory won't solder properly and there're shorts under processor * Yield of working circuits around 33% * [Message about problem from GTA04A5 team](http://lists.goldelico.com/pipermail/gta04-owner/2017-February/007259.html) * [possible mechanism for memory](https://image.slidesharecdn.com/0324c436-3f58-425c-a17e-26af383680ca-161026182401/95/determination-of-solder-paste-inspection-tolerance-limits-for-fine-pitch-packages-66-638.jpg?cb=1477506275)
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