PCB masana'antu lantarki PCB high TG170 12 yadudduka ENIG
Ƙayyadaddun samfur:
| Tushen Material: | Saukewa: FR4TG170 |
| Kauri PCB: | 1.6 +/- 10% mm |
| Ƙididdigar Layer: | 12l |
| Kaurin Copper: | 1 oz ga duk yadudduka |
| Maganin saman: | ENIG 2U" |
| Mashin solder: | Koren mai sheki |
| Silkscreen: | Fari |
| Tsari na musamman: | Daidaitawa |
Aikace-aikace
Babban Layer PCB (Babban Layer PCB) PCB ne (Printed Circuit Board, printed board) tare da fiye da yadudduka 8.Saboda fa'idodinsa na allon kewayawa da yawa, ana iya samun mafi girman girman kewayawa a cikin ƙaramin sawun ƙafa, yana ba da damar ƙira mafi rikitarwa, don haka ya dace sosai don sarrafa siginar dijital mai sauri, mitar rediyo na microwave, modem, babban ƙarshen. uwar garken , ajiyar bayanai da sauran filayen.Ana yin allunan da'ira masu girma da yawa da allunan TG FR4 masu girma ko wasu kayan aiki masu inganci, waɗanda za su iya kula da kwanciyar hankali a cikin yanayin zafi mai zafi, zafi mai ƙarfi, da yanayin mitoci.
Game da ƙimar TG na kayan FR4
FR-4 substrate shine tsarin resin epoxy, don haka na dogon lokaci, ƙimar Tg ita ce mafi yawan ma'anar da ake amfani da ita don rarraba darajar FR-4, kuma yana ɗaya daga cikin mahimman alamun aiki a cikin ƙayyadaddun IPC-4101, Tg. darajar tsarin guduro, yana nufin abu daga yanayin ƙaƙƙarfan ƙaƙƙarfan ko "gilashi" zuwa yanayin canzawa cikin sauƙi ko taushin yanayin yanayin zafi.Wannan canjin thermodynamic koyaushe yana juyawa matuƙar guduro bai ruɓe ba.Wannan yana nufin cewa lokacin da abu ya kasance mai zafi daga yanayin ɗaki zuwa zafin jiki sama da ƙimar Tg, sannan kuma ya sanyaya ƙasa da ƙimar Tg, zai iya komawa yanayin da ya gabata tare da kaddarorin iri ɗaya.
Koyaya, lokacin da aka ƙona kayan zuwa zafin jiki da yawa fiye da ƙimar Tg ɗin sa, ana iya haifar da canje-canjen yanayi mara jujjuyawa.Tasirin wannan zafin jiki yana da alaƙa da nau'in nau'in abu, kuma tare da bazuwar thermal na resin.Gabaɗaya magana, mafi girma Tg na substrate, mafi girman amincin kayan.Idan tsarin walda ba tare da gubar ba, yakamata a yi la'akari da yanayin bazuwar thermal (Td) na ƙasa.Sauran mahimman alamomin aikin sun haɗa da ƙimar haɓaka haɓakar thermal (CTE), shayar da ruwa, kaddarorin mannewa na kayan, da gwajin lokacin da aka saba amfani da su kamar gwajin T260 da T288.
Babban bambanci tsakanin kayan FR-4 shine ƙimar Tg.Dangane da zafin Tg, FR-4 PCB gabaɗaya an raba su zuwa ƙananan Tg, matsakaici Tg da manyan faranti na Tg.A cikin masana'antu, FR-4 tare da Tg kusa da 135 ℃ yawanci ana rarraba su azaman ƙananan Tg PCB;FR-4 a kusan 150 ℃ aka canza zuwa matsakaici Tg PCB.FR-4 tare da Tg kusa da 170 ℃ an rarraba shi azaman babban Tg PCB.Idan akwai lokuta masu yawa, ko PCB yadudduka (fiye da yadudduka 14), ko zafin walda mai girma (≥230 ℃), ko yawan zafin jiki mai aiki (fiye da 100 ℃), ko matsanancin damuwa na walda (kamar sayar da igiyar ruwa), ya kamata a zaɓi babban Tg PCB.
FAQs
Wannan haɗin gwiwa mai ƙarfi kuma yana sa HASL kyakkyawan ƙare don aikace-aikacen dogaro mai ƙarfi.Koyaya, HASL yana barin ƙasa mara daidaituwa duk da tsarin daidaitawa.ENIG, a gefe guda, yana ba da shimfidar shimfidar wuri mai faɗi wanda ya sa ENIG ya fi dacewa don kyakkyawan filin wasa da manyan abubuwan ƙididdigewa musamman na'urorin grid array (BGA).
Abubuwan gama gari tare da babban TG da muka yi amfani da su shine S1000-2 da KB6167F, da SPEC.mai bi,
