# Carrier, storage, and handling information Source: [https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html](https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html) ## Carrier Source: [https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html](https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html) ### Tape and reel information Source: [https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html](https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html) All QTI tape carrier systems conform to EIA-481 standards. A simplified sketch of the QCC743 tape carrier is shown in the following figure, including the proper part orientation, maximum number of devices per reel, and key dimensions. Figure : QCC743 QFN-40 carrier tape drawing with part orientation pin assignments Page-1 Sheet.6 Sheet.7 Sheet.8 Sheet.301 Pin A1 faces feed holes Pin A1 faces feed holes Sheet.306 Sheet.23 Sheet.25 Sheet.26 Sheet.27 Sheet.28 Sheet.29 Sheet.30 Sheet.33 Sheet.34 Taping direction Taping direction Sheet.1 Sheet.2 Tape width Tape width Sheet.36 Sheet.37 Sheet.38 Sheet.39 Sheet.40 Sheet.10 Sheet.11 Sheet.12 Sheet.16 Sheet.17 Sheet.42 Sheet.308 Sheet.309 Sheet.310 Sheet.311 Sheet.312 Sheet.313 Sheet.314 Sheet.319 Sheet.322 Sheet.45 Sheet.32 Sheet.44 Sheet.46 Sheet.47 Sheet.48 Sheet.31 Sheet.49 Sheet.3 Sheet.4 Pocket pitch Pocket pitch Sheet.5 Sheet.35 Sheet.305 Sheet.18 Tape width: Tape width: Sheet.19 Pocket pitch: Pocket pitch: Sheet.20 Units per reel: Units per reel: Sheet.21 Reel diameter: Reel diameter: Sheet.22 Hub diameter: Hub diameter: Sheet.24 Tape feed: Tape feed: Sheet.50 Single Single Sheet.51 4000 4000 Sheet.52 330 mm 330 mm Sheet.53 178 mm 178 mm Sheet.54 12 mm 12 mm Sheet.55 8 mm 8 mm Sheet.56 Sheet.57 Sheet.58 Sheet.59 A simplified sketch of the QCC744 tape carrier is shown in the following figure, including the proper part orientation, maximum number of devices per reel, and key dimensions. Figure : QCC744 QFN-56 carrier tape drawing with part orientation Page-1 Sheet.1 Sheet.2 Sheet.3 Sheet.4 Pin A1 faces feed holes Pin A1 faces feed holes Sheet.5 Sheet.6 Sheet.7 Sheet.8 Sheet.9 Sheet.10 Sheet.11 Sheet.12 Sheet.13 Sheet.14 Taping direction Taping direction Sheet.15 Sheet.16 Tape width Tape width Sheet.17 Sheet.18 Sheet.19 Sheet.20 Sheet.21 Sheet.22 Sheet.23 Sheet.24 Sheet.25 Sheet.26 Sheet.27 Sheet.28 Sheet.29 Sheet.30 Sheet.31 Sheet.32 Sheet.33 Sheet.34 Sheet.35 Sheet.36 Sheet.37 Sheet.38 Sheet.39 Sheet.40 Sheet.41 Sheet.42 Sheet.43 Sheet.44 Sheet.45 Sheet.46 Pocket pitch Pocket pitch Sheet.47 Sheet.48 Sheet.49 Sheet.50 Tape width: Tape width: Sheet.51 Pocket pitch: Pocket pitch: Sheet.52 Units per reel: Units per reel: Sheet.53 Reel diameter: Reel diameter: Sheet.54 Hub diameter: Hub diameter: Sheet.55 Tape feed: Tape feed: Sheet.56 Single Single Sheet.57 4000 2000 Sheet.58 330 mm 330 mm Sheet.59 178 mm 178 mm Sheet.60 12 mm 16 mm Sheet.61 8 mm 12 mm Sheet.62 Sheet.63 Sheet.64 Sheet.65 Tape-handling recommendations are shown in the following figure. Figure : Tape handling ![](data:image/png;base64,UklGRtIUAABXRUJQVlA4TMUUAAAvZIM5ANWK4rZtHGn/sZPr9RkRE+A103vcDgl0VvnjTqNahXvH4/5/bNtSplJDqJCQIVToIRASElZISFghIeELCWsIhIQMgRlc6ezV2H9352x6rCPLsqx/brory9X+ZaFlLVk7+d+juG3biDnb/afNcxD6Twu2nbCR9Fi6Z9zpNTwBEgJkz68UadvbuvqXoeUYnmV4GV6Cl3ChYaBgoOGBhoKBhoJhGv/69dsnE+QziZKZ3nV778W5Ren9Nhjbtod1XtsstX62WIPBYPDFYbE/bTgcfhgMBr9aZt+xEyu63PY3jH446zBYLAaLxWCxeH9msRgM5ixnne1ss/5DkCS5bTNwZJxT1QHggS8wwHSsef/x/uP9x/uP95/lNjC4Mk7hHz0SvcFIh7nRzc11MviOTi9+60KgDgUO1XNnDP6z0QurDkoi2/guqkOBXGpZEHQwceHd1ILJEtWJb2kMezK64AYAQFkvygklRirjx5PiQbjMjmwWYqz3nScHAYBzozSZw16RHSpC0mo5aXCnnqXEdQBIYVl74iwR1UnmKfCxYehg4qJzgsFbSWwFa/pbXDsEEt/e4xAAfN7QhBJ+58bPUKwSI+4ExoL6XszMEASiw86zY9xZsqOBczorokOFVe1v2c65UuV6ntHgl9GS1vVMDQDKen22XqYFVSrNUQdPGGvPtmVSqKCE9NvQS4kKkvxj57soS0DGPcd69zQba2l/6GCrW0iZJzk1xioukWQlWqP2H0AkrSqjWO+WlMi1mQWDV+aJ7jpEWi3Vbv5BvjmLKi6oInsZzrJiGzbUVJv21AQIggbGqflw3j9D53d9KwA4rYGMezZDScbbhLRZyv3zA2Q8YxPXpjGRYywt29/sSJxxZj9ih1nnBqjc7Z/1oszHd6jDjreMhfV14hboc4NoB8Q44Xy59918JjdIoNgcKgDD4cnotBOzLrSxaUigiu6DHEl1KudamgW7GbeTbHWG2VJuCUjsawB15kiP4wcIl1qIO+0LGAsNI5YYqv00Wg3N+n87GvtTvmnoc8H5YNKqfEPirD4VyOcMZn0/txBIAzBiZQCDMtJh7osHJ5Ynw4/Eup6JokQF92lhhwSU32jUnf80FApjoUSBxNJu2PQXO/aBtb/lF5C36DjW9QdX+Jzoh53G6vFkXE4mP/lsn/J+f5mE58/aInFvxNLBkNRjjvRIvS2YQLbqwWIW2jYfP0WquKCOZ62b29DBE94P+iPO1pKkc1923R09EnW/fUSlGAtusxM3a8j0A70tv8WFrDfzwvo46jWAWbCq2HqaEsdipHMaqTM2p7VgkxZrN25QSWu1nVj4DCcDas9/PEOMZDQ296txODi1yqZ8eU9ntZzFmiAVjd3TSFWVNWwiWHuGAk0htLfFLoH9zi2Pn1hlsetjAMp6yZOS9Tm6NCZcpGXzQuv6XAt2xBQEU3es99gJIdVSOrIyT4b1Mi2s4xCVejesv6ioLsT9d26l9pNGwlooiTRZOJ0ZGFV31udWvnCGZMWQqPb9TR0qcp8btNgCWd/DgsyUoeEq+u2wiCjzFJBXcX0cVZArzXHKwHpRJr52sohm0fYFM5zoVpPidKx5/1melJ/hMEL4mZz/zX94//H+4/3H+4/3H+8/3n+W8+Af6f8Uhr/jV+ctHeB3TlsImTihjL7KOKWG/qHNCe3L26iBn0jPuO9/z1/TvYp5YAyctyfcn3pKr+FT3M48kDj6uK3rd8urf8Ffn/kPPM/+dKZPfIrX/MLxJMP5tMiveD3hrpb51f8JbBH8s/wzk50mY/yTGPCAmmdY8jZ6+tpD8PzCz5q30Y5WIAv/LU+vTVu7ht2/ul/RP9MRz5P7swt/wZ+C2w2Sa3gVbWY8ugfV59f39Gjenz9ew6fArxOaJ7en2Pcyfw0On6Kc7d4q/Jc8u3Lmv+H1+j6LZz+yinsOL35wD6kiCb4+P7/Q74vgmdNT6rvULMjrQBI8vbYg8zU8jWfb73T/oz3DficN7wMF9Ow6Jook+Ib/MXlpFFtTTispp19RH8lCDV7UCbvdTZg6X7NuUrcKFzdr4ItrLz5LVTld6rjbW/r+50zz8UvO+BKoExZhCFt/xS/4hnsIm+qEtQ1hv/isWqXiObyPQqDXbjJSThgpofED2J9hpqF0U+3D1YRdNn3pJEDvoxAVwJYmCM3EPyWKxre0Hgl0wg8sBeMJu+g2UqNtCLMIgcuwBx7IvVI20uElqMa3NEwU0USBPaRgPmE8zSRMkO1q2ZHvYRGcn3GykbZkq4JlPLVZUIubLeuRzTSC+4Ywq3BzHDbBXdnq2UO/KJnPbBUsQy1rK25i7JTAupW5MHwPFFABvIkVVpgzFV0WVDtuYqwxYV9G3wMDL303KSudeqyv5CCX4ENfQBD23z99GixrK2/SW4pnhP33/6MOwuzLVIbvcXHWchNsd6wsqCmfLL0S/clHVypOcQmuh6I7ISxtCVunhHGYC11iWY9MZ4qu5FmJ67yP+cr154QHYQOWMDuz54GRI/hNykpVwDXeDeV0bM9RQDGjFQ5SsKqBEdZS4HoXMMvahpusk8+y4EqrSxGwJey6OyBhVv7U8yiBI6iiw5W22qfItZwjHVvuyrGpDyu6HaTAar/kuSNM0TjAHEkwiwMs635ROvtsQ0njoHzjiLCQEYQwS7PnkYkyoBbCJOA6V4dycfckGA1ghqYToGq/XdvuAUXYertQLLesMXHEDSW7z0LZH7nSrTxCW7kT95E9j8mhwGmhHvlaatP4JtW5kvkuQeXGvKMkI7RvPlIBtKwN9jpiEigRhknK/iiCC5VW6y115l04/I6+ZR7ItGmVYlf0zcsawVN+KMhWeN0PqqiBsEholGWtx+vYI9WmOAB0OWIuAaqs1luIRnyP4XcsEOabYLStxZlQj8VZBGbuXQTzLGwIUxxFVHZ41WSFZa0ik3VR7JrW9GtSWPS2EImpDb8DLxaof6xXugfmSrHpm2NQl5zomG/oUe0Dc9BJWCO00rLGzWiDt2DcqLylzh2EKdFTueLwO5oAwImMkye+FbBmVDUH1XRUbVJbAO0w9CAIU50chSZhWVtykw1hC2DkUkkCGcKWtQZaGsPrwMm0gLTQpFvzgk9tEmavHYaeGYTZYFnL9UKcqi2iVGXJMZ4TZq+B1r7hdzTB/m7Kzr6ymdarT/sB0StlOww9EMIIgjDbLOseKe39kqoOIvU29Y1Twmw20LyOUpkykEsQ6da/pT40o0/nyC4Lm0KYoJ1Z1rYcsiuUtR++SNfZEGa1geZz9MiPPgZkwoX9JhQAbzTI9D9JnLE39QAkEGEQK5fh2LK25CbbrP24DVI7I8xKZOILh8/RE7GsF1lq3I0B8kSbuiN7WeESjJQQhDAYN/qifrTobclNdln7mDRSHeqEWWDEbP6f/ka/A/PmCBPQMJ0JlUoXGsysO6BFLsFEsR8Qpn1PU6FluGUt7RJRE84NFLRhUTtYrbf1Jts5kLdRpoA53B3wdGKhpv0MYwkVjTtjr9hpDSKsUbbHssbDdfhc9e93zLwnLHZr2/ZjR4uvseLBFUB/ekgq7RHIY7Uo7QPnGKyF5GyykLQfMMmcZS1r4w9HC5r2g9mZ837R227t4V9ga3e6mJWOOck7weQZWlCH5vGitT/yaD65kxMaRpjBlrXa+nQRKG06gybM7iveBG7CccdaiTeJ4sFJY1CfGWuOYLboQlPizwCNSUCELTjCTLas1dan7yjbHsD04aIoTZj5/LWjK54DbqOuX7UevP4HbWJbr3aqvwAtIT4TFrADoldauz2XhmshyeGDUY4wqDbfKi07LGu5usUEsVtO8YjTjjBrenS7U6o1MPP+iktgpKIUHEdmvzbh1eXVFugsKUaoQHTSQ4BxLkHQWVJY+ghrlRLKWdaWRKpqAtlpt0MIa5sOHWsNvEuh1kczf1zxDR6qstZ68IyJg/4M35GUdyT0k2+QJic+epJxLkFgD8qcQxNh69FDzLWsYTYL11tq9mo7Yb21fNafmWqtKd3tuEv7BZivA005HyaoEcJUaRQz4LGYI91QzFxNMsC7RXELGyUdLsE+H0f1dpa1HTdRIgx4GXtFMo+w/rDMZq3hrD+nddqhXQbdVyim1dBAQ082xdCBPWv9cSU/ilescQkqrAseEIZAhO1PvOHkZMlNYAjjhDBXZjGJMMzxYNKzV5TFp28nt72ic7enpiWrybEPsKWqksL2ik0uQRU2jwkrkIQlurpVal/WLzT2hHWIK+Hu45ww7dqjXuk+m/L4EyWYdQVye3iPHMtAdXupryg4WJ9AO7Y5JIoIQ5gAgrAR174/BctuorDCgd/o6sXr+yvmrNbjqfbwMRIbOUGBmqH3t277+d8vhTbR7lmZaip2BXhfggpE2H8rEhaPCDPastZwcjMHrul/UZ2wrbPenEXvtL/ib5TAtVv9EIV+X8y1pvN01cAcYmp4Hm/XWMB3wyJL2KxVcEyYFZY1tGmBORIL6mURYS1wfVzxOTLpuGpgoGhsSwK5NeMffiIfVE07YcdOBFssay07GUvL9hA2Nwaa14GRQzH1JgZ2u6n5qLuND2azyLLe72R0FGE98NWH31ECRzT0Ji57urglEa4tsazPrGAzCTMn6qffsciMk3emG5M2uQR7pWyoEKzwwXZnETYfUT89BEuZNzhwkoJL0NjZq3st64PzcK4iDCtfOHwEyx8SYMLeVYsDvGeq3Q7L2tBxz1mEtU3cU7+jmGiks7FJxiXoSsJCG34nLDG14XkUMpF5Yx+haoNP7KLb0Xxlit1hhEWuODyPQkY+3/e2RpjvCMKWyzQUBo5jeAuQ+WP4On6uyx7DUzH7Hih4jmW/YmWpN/pY48mFi/PwKl4p9fM3d795fpzf0N6R7cv5wDyb1PuEhyfTnw1p2N3heP34yS73of5c+pAZDbv8+O5s4JfkK9fEJ9iH4Bv26/NHGa5GmV8oaUNE+MBhd0qpQdPfDgoLf+4yQwd3KY8K3q1DM5k3gc8GeAV1FHYT7vkGZ9ImkeVtYU3DzRO6XX+fC4erUX68DPjHJ/QcBZu4RmnWwQPqreBaqsyhxl1hY4ap4Jp1F0Hg2kTkWHCsjEcFYyUOEejNvtYMWyZTDXBMlvsiFhwUNmaEK2yoc8Mk15nRbDnXuiFlIzJoJq9tYU26RgG4mGt+7/5Zn8ucQB/DVFM7bEV3BHgG9V1PX3SvJUEEiJ/0qOBhYftKAvUK5ovousvxi/ddVb1Jz8D1OHBGyZMiAJP01p37cceoAQGipZwVFlsK6vRLyhnB5dwXhJz3IpOSszo1x0Ep0Ix/okrZeCv8A8FAIPsqkkDSIaoYtzvIPVcGQ1SNMxmk3oqvqa3S9xn4kiqs4FYNHSzJJDVFJvnKMq0vqv3XooCiTGG72gypp8ohyTBQo+JZM2k535rkDBD0J3A9hPTrQXW+gHMZw0PIUKuTk6QtJCVguJasBFkFUSBtXM6k0iJo6qhg5inLZFUBhiCrJ5BV2mSWF9ldlZi8lnQFlTqGQFrOKemSs+LISCE1ibJIVaGyD13mzOrfgc7RhiJdoiNAKsp4oAZAVVGUg/JTzRupVJCKvCSaSpZnJVWlXBR0lwqTD8lIQ0dhYzJMzmO0i2OBalCN0/Bheh1b4rq4L4Ko0AQUWnVXyI27jrZWuGvIGJKGbjpugdJohfJVbzpyFzQN3XTEqpJ1yVlHYUeSPw/fWWpdCj2I/jWL6qFIhECNCh04KNTqigpNI6vEpJJnIalY07LVUH3Hm3SpBFQoA76wmVS0u0I1Fk09ckZ5CMySc6+0dJhTI5NMd48eXOJfvztzUOvivi55WU6lwjbpMIShDAXUoaOw0tOwnpSCOKSpEM8QVQqb5KNHtQHffUqkBS9nvJXk3GjokbOWyEXxQkhrYXKBQVkOR5ufXf3TDQSZUEdg3CsqPBgSuitgVn3nxhgkPYm7+COwdmVWfkdGOfXVo2oMMEljPVeaHVzOPZKanDEYJGflOHbcQS1yqgMC/XMWZ+P1I73UyxYZqAr1KucbM6J6uDMMVzvf+hDUg1tFQcbTPRYX1azsM4r99EF2MwiUK5jCGqeszLc/KTMZlsSTT9VjCXW+UUJkIyOonHHDJMWuLueuQ85BRs7qFeQivZoolRvIRi78/ruFzv4toFFJUKEqMSnsV2EqbR9lVUAKK9g/LyHwZo8FhBBzoLh/qgVtdo1kgAqWSHVb1lgF2z0WDYCUWzDmroJ6Clvrlsn9Wp2qB/CAFUiRhUOR1ZpARIbxoIJa5QzBZJSxPspdOSSpAieIT6/5vTv8bg1BCgfp1807LNjdiOvgeQkISdj+qRagFcR8UEFQI/6ggkVHYRcsk/cWN2wFD5nUILIbtrBFg5wThYwnG8EUNrTVALGx5DXcnyB+8pxJuTLVuLUJRlTSuTyVb/KjDP+lyM+c858NxCZovADMPOcD6CdPrjQZ3wHcd07PLoQwvIQ1O2wpuT27wNPJ9rlxLqLE+BHtT2xle+8KP3Gy0Wmci6jyRzT95jduYaHLHrnuzgZqCchwO7yt/cZLhP3G1Xz9Rg2uPXINs17vVatJrTY9NicTlolrdzFfvSq93HOM0vGvXI2vz9cY7wTgZC4ORqksWE4WdGJOCHzg6x0S9dDhisi5wMmUcDgYTcC1AB/4+o7j/QF3KyLnIhNf3cWCxsjQ76SwucnHDziZkoMJK9vZlINxE8d3oD50tiJyH2QHJBdCdkjyIl7F65BtbQ6E3IDkYGDaDEleBObZzIWzFZETIaWGHIwl4OrLaV2ZBs9fna2IHAmJAcnB6BfTgjXzXH7183f5he8FtO28xJU4HZBcjJuA3jvptUt5uhzl8y0VFz5sldnQGpJojjzYwUTamA0V0L42v4RY0IxsCm8wsX0dYMMXXSCV6T+5S1/9Q/hrN/HV3UsYRqbkZEGjnrfQ/ACiBQ7NwYTdxLEPF2NtBtIPNzBuBnTH4mBAci4O9iB/qMG96+Bc7AYkB2O3B/m9h3eHIhrmHpXbboJyMV/bPcjvPThbEbkYoY3hZlAe470HVysiJ49KjV09mvaE4yOO0GLP2tysiPL4p7H0b/7D+4/3H+8/Sz2IAA==) ### Matrix tray information Source: [https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html](https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html) All QTI matrix tray carriers conform to JEDEC standards. The device pin 1 is oriented to the chamfered corner of the matrix tray. See the following figure for matrix-tray key attributes and dimensions. Each tray of the QCC743 contains up to 490 devices. Production orders of the QCC743 that are shipped in matrix tray carriers will be in 10 + 1 tray stacks of 4900 units. The stacking configuration and quantity for sample orders will vary. Figure : QCC743 QFN-40 matrix-tray key attributes and dimensions Page-1 Sheet.1 M3 M3 Sheet.2 M M Sheet.3 M1 M1 Sheet.4 M2 M2 Sheet.5 Sheet.6 Sheet.7 Sheet.8 Sheet.9 Sheet.10 Sheet.11 Sheet.12 Sheet.13 Sheet.14 Sheet.15 Sheet.16 Sheet.17 Sheet.18 Sheet.19 Sheet.20 Sheet.21 Sheet.22 Sheet.23 Sheet.24 Sheet.25 Sheet.26 Sheet.27 Sheet.28 Sheet.29 Sheet.30 Sheet.31 Sheet.32 Sheet.33 Sheet.34 On-page reference On-page reference.13 On-page reference.14 On-page reference.15 Process Process.17 Process.18 Process.19 Sheet.43 Sheet.44 Sheet.45 Sheet.46 Sheet.47 Sheet.48 Sheet.49 Sheet.50 Sheet.51 Sheet.52 Sheet.53 Each tray of the QCC744 contains up to 260 devices. Production orders of the QCC744 that are shipped in matrix tray carriers will be in 10 + 1 tray stacks of 2600 units. The stacking configuration and quantity for sample orders will vary. Figure : QCC744 QFN-56 matrix-tray key attributes and dimensions Page-1 Sheet.1 M3 M3 Sheet.2 M M Sheet.3 M1 M1 Sheet.4 M2 M2 Sheet.5 Sheet.6 Sheet.7 Sheet.8 Sheet.9 Sheet.10 Sheet.11 Sheet.12 Sheet.13 Sheet.14 Sheet.15 Sheet.16 Sheet.17 Sheet.18 Sheet.19 Sheet.20 Sheet.21 Sheet.22 Sheet.23 Sheet.24 Sheet.25 Sheet.26 Sheet.27 Sheet.28 Sheet.29 Sheet.30 Sheet.31 Sheet.32 Sheet.33 Sheet.34 On-page reference On-page reference.13 On-page reference.14 On-page reference.15 Process Process.17 Process.18 Process.19 Sheet.43 Sheet.44 Sheet.45 Sheet.46 Sheet.47 Sheet.48 Sheet.49 Sheet.50 Sheet.51 Sheet.52 Sheet.53 ## Storage Source: [https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html](https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html) ### Bagged storage conditions Source: [https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html](https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html) QCC743/QCC744 devices delivered in tape and reel carriers must be stored in sealed, moisture barrier, antistatic bags. See the IC Products Packing Method document (80-VK055-1) for the expected shelf life. ### Out-of-bag duration Source: [https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html](https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html) The out-of-bag duration is the time a device can be on the factory floor before being installed onto a PCB. It is defined by the device MSL rating, as described in [Thermal characteristics](https://docs.qualcomm.com/doc/80-WL743-1/topic/mechanical-information.html#thermal-characteristics). ## Handling Source: [https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html](https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html) Tape handling was described in [Tape and reel information](https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html#tape-and-reel-information). Other (IC-specific) handling guidelines are presented in the following subsections. ### Baking Source: [https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html](https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html) It is not necessary to bake the QCC743/QCC744 if the conditions specified in [Bagged storage conditions](https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html#bagged-storage-conditions) and [Out-of-bag duration](https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html#out-of-bag-duration) have not been exceeded. It is necessary to bake the QCC743/QCC744 if any condition specified in [Bagged storage conditions](https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html#bagged-storage-conditions) or [Out-of-bag duration](https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html#out-of-bag-duration) has been exceeded. The baking conditions are specified on the moisture-sensitive caution label attached to each bag; see the IC Products Packing Method (80-VK055-1) document for details. Caution: If baking is required, the devices must be transferred into trays that can be baked to at least 125°C. Devices should not be baked in tape and reel carriers at any temperature. ### Electrostatic discharge Source: [https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html](https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html) Electrostatic discharge (ESD) occurs naturally in laboratory and factory environments. An established high-voltage potential is always at risk of discharging to a lower potential. If this discharge path is through a semiconductor device, destructive damage may result. ESD countermeasures and handling methods must be developed and used to control the factory environment at each manufacturing site. QTI products must be handled according to the ESD Association standard: ANSI/ESD S20.20-1999, Protection of Electrical and Electronic Parts, Assemblies, and Equipment. See [Reliability qualifications summary](https://docs.qualcomm.com/doc/80-WL743-1/topic/part-reliability.html#reliability-qualifications-summary) for the QCC743/QCC744 ESD ratings. ## Bar code label and packing for shipment Source: [https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html](https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html) See the IC Products Packing Method (80-VK055-1) document for all packing-related information, including bar code label details. ## Reflow profile Source: [https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html](https://docs.qualcomm.com/doc/80-WL743-1/topic/carrier-storage-and-handling-information.html) For details, refer to IPC/JEDEC J-STD-020E. Figure : Classification Profile (not to scale) Page-1 Sheet.2 Sheet.3 Sheet.4 Sheet.5 Sheet.6 Sheet.7 Sheet.8 Sheet.9 Sheet.10 Sheet.11 Sheet.12 Sheet.13 Sheet.14 Sheet.15 Sheet.16 Sheet.17 Sheet.18 Sheet.19 Sheet.20 Sheet.21 Sheet.22 Sheet.23 Sheet.24 Sheet.25 Sheet.26 Sheet.27 Sheet.28 Sheet.29 Sheet.30 Sheet.31 Sheet.33 Sheet.35 Sheet.36 Sheet.40 Sheet.41 Sheet.42 Sheet.43 Sheet.44 Sheet.45 Sheet.46 Sheet.47 Sheet.48 Sheet.49 Sheet.50 Tp Tp Sheet.52 TL TL Sheet.53 25 25 Sheet.54 Time 25°C to Peak Time 25°C to Peak Sheet.55 Time Time Sheet.56 Temperature Temperature Sheet.58 Tsmax Tsmax Sheet.59 Tsmin Tsmin Sheet.60 Preheat Area Preheat Area Sheet.61 Max Ramp Up Rate = 3°C/s Max Ramp Down Rate = 6°C/s Max Ramp Up Rate = 3°C/sMax Ramp Down Rate = 6°C/s Sheet.64 tL tL Sheet.65 tP tP Sheet.66 Tc -5°C Tc -5°C Sheet.69 Rounded Rectangle Simple Arrow Simple Arrow.73 Sheet.74 Supplier tp Supplier tp Sheet.76 User tp User tp Sheet.77 Supplier tp ≥ tc Supplier tp ≥ tc Sheet.79 Sheet.80 Sheet.81 User tp ≤ tc User tp ≤ tc Rounded Rectangle.82 Sheet.83 Sheet.84 Sheet.85 tS tS Sheet.86 Tc -5°C Tc -5°C | Profile feature | Sn-Pb eutectic assembly | Pb-Free assembly | | --- | --- | --- | | Preheat/Soak Temperature Min (Tsmin) Temperature Max
(Tsmax)



Time (tS) from (Tsmin to Tsmax) | 100°C



150°C



60-120 seconds | 150°C



200°C



60-120 seconds | | Ramp-up rate (TL to Tp) | 3°C/second max. | 3°C/second max. | | Liquidous temperature (TL) Time (tL) maintained
above TL | 183°C



60-150 seconds | 217°C



60-150 seconds | | Peak package body temperature (Tp) | 240°C+0/-5 °C | 250°C+0/-5 °C | | Time (tp)\* within 5 °C of the specified classification
temperature (Tc) | 10-30 seconds | 20-40 seconds | | Ramp-down rate (Tp to TL) | 6°C/second max | 6°C/second max | | Time 25 °C to peak temperature | 6 minutes max | 8 minutes max | | Tolerance for peak profile temperature
(Tp) is defined as a supplier minimum and a user
maximum. | Tolerance for peak profile temperature
(Tp) is defined as a supplier minimum and a user
maximum. | Tolerance for peak profile temperature
(Tp) is defined as a supplier minimum and a user
maximum. | Last Published: Apr 22, 2026 [Previous Topic Mechanical information](https://docs.qualcomm.com/bundle/publicresource/80-WL743-1/topics/mechanical-information.md) [Next Topic PCB mounting guidelines](https://docs.qualcomm.com/bundle/publicresource/80-WL743-1/topics/pcb-mounting-guidelines.md)