1. 0.5mm farar QFP tsayin kushin ya yi tsayi da yawa, yana haifar da gajeren kewayawa.
2. PLCC soket pads sun yi gajere, yana haifar da siyarwar ƙarya.
3. Tsawon kushin IC ya yi tsayi da yawa kuma adadin manna na solder yana da girma wanda ke haifar da gajeriyar kewayawa a reflow.
4. Gilashin guntu mai siffar fuka-fuki sun yi tsayi da yawa don yin tasiri ga cikowar diddige da kuma jika mara kyau.
5. A kushin tsawon guntu aka gyara ne ma takaice, sakamakon shifting, bude kewaye, ba za a iya soldered da sauran soldering matsaloli.
6. Tsawon kushin na nau'in nau'in guntu yana da tsayi da yawa, wanda ya haifar da abin tunawa a tsaye, bude da'irar, kayan aikin solder ƙasa da tin da sauran matsalolin soldering.
7. Faɗin kushin yana da faɗi da yawa wanda ke haifar da ƙaura, mai siyar da komai da ƙarancin tin akan kushin da sauran lahani.
8. Faɗin kushin yana da faɗi da yawa, girman fakitin kayan aiki da rashin daidaituwa.
9. Faɗin kushin yana da kunkuntar, yana shafar girman narkakkar solder tare da ƙarshen siyar da kayan aikin ƙarfe da jigon ƙarfe da aka bazu a haɗin haɗin PCB, yana shafar siffar haɗin gwiwa na solder, yana rage amincin haɗin gwiwa.
10. Kushin kai tsaye an haɗa shi da babban yanki na foil na jan karfe, yana haifar da abin tunawa a tsaye, solder na karya da sauran lahani.
11. Kushin farar ne ma babba ko ma kananan, bangaren solder karshen ba zai iya zoba tare da kushin zoba, zai samar da wani abin tunawa, kaura, ƙarya solder da sauran lahani.
12. Filin kushin yana da girma da yawa wanda ke haifar da rashin iya samar da haɗin gwiwa na solder.
Lokacin aikawa: Dec-16-2021