Metal tushe farantin tagulla da FR-4 su ne biyu da aka saba amfani da bugu Circuit Board (PCB) substrates a cikin Electronics masana'antu. Sun bambanta a cikin abun da ke ciki, halayen aiki da filayen aikace-aikace. A yau, Fastline zai samar muku da kwatancen bincike na waɗannan kayan biyu daga hangen ƙwararru:

Metal tushe farantin jan karfe: Yana da ƙarfe na tushen PCB abu, yawanci amfani da aluminum ko jan karfe a matsayin substrate. Babban fasalinsa shine kyakkyawan yanayin zafi da iyawar zafi, don haka ya shahara sosai a aikace-aikacen da ke buƙatar haɓakar zafin jiki mai ƙarfi, kamar hasken LED da masu canza wuta. Ƙarfe na iya gudanar da zafi yadda ya kamata daga wuraren zafi na PCB zuwa dukkan allon, ta yadda za a rage yawan zafi da inganta aikin na'urar gaba ɗaya.

FR-4: FR-4 shine kayan laminate tare da gilashin fiber zane a matsayin kayan ƙarfafawa da resin epoxy a matsayin mai ɗaure. A halin yanzu shine mafi yawan amfani da PCB substrate, saboda kyakkyawan ƙarfin injinsa, kayan kariya na lantarki da kaddarorin kashe wuta kuma ana amfani dashi sosai a cikin samfuran lantarki iri-iri. FR-4 yana da ƙimar jinkirin harshen wuta na UL94 V-0, wanda ke nufin yana ƙonewa a cikin harshen wuta na ɗan gajeren lokaci kuma ya dace da amfani da na'urorin lantarki tare da buƙatun aminci.

babban bambanci:

Substrate abu: Karfe-sanfe panels amfani da karfe (kamar aluminum ko jan karfe) a matsayin substrate, yayin da FR-4 yana amfani da fiberglass zane da epoxy resin.

Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarfe ya fi girma fiye da na FR-4, wanda ya dace da aikace-aikacen da ke buƙatar zubar da zafi mai kyau.

Nauyi da kauri: Tagulla masu sanye da ƙarfe na ƙarfe yawanci sun fi FR-4 nauyi kuma suna iya zama sirara.

Ikon aiwatarwa: FR-4 yana da sauƙin aiwatarwa, ya dace da ƙirar PCB mai ɗimbin yawa; Ƙarfe mai suturar jan ƙarfe yana da wuya a aiwatar da shi, amma ya dace da zane-zane guda ɗaya ko sauƙi mai sauƙi.

Farashin: Farashin takardar tagulla na karfe yana yawanci sama da FR-4 saboda ƙimar ƙarfe mafi girma.

Aikace-aikace: Ƙarfe mai rufin tagulla ana amfani da su ne a cikin na'urorin lantarki waɗanda ke buƙatar kyakkyawan zafi, kamar wutar lantarki da hasken LED. FR-4 ya fi dacewa, dacewa da mafi yawan daidaitattun na'urorin lantarki da ƙirar PCB masu yawa.

Gabaɗaya, zaɓin sabulun ƙarfe ko FR-4 ya dogara ne akan buƙatun sarrafa thermal na samfur, ƙira, kasafin kuɗi da buƙatun aminci.