4 Layer FPC tare da FR4 stiffener a cikin tsarin 4G module

Gabatarwa

PCB mai sassaucin ra'ayi wani nau'i ne na PCB na musamman wanda zaku iya lanƙwasa zuwa siffar da ake so.Yawancin lokaci ana amfani da su don ayyuka masu yawa da yawan zafin jiki.

Saboda kyakkyawan juriya na zafi, ƙirar mai sassauƙa ita ce manufa don kayan haɓaka kayan haɓaka.Fim ɗin polyester na gaskiya da aka yi amfani da shi wajen gina ƙirar sassauƙa yana aiki azaman kayan da ake amfani da shi.

Kuna iya daidaita kauri na jan karfe daga 0.0001 "zuwa 0.010", yayin da dielectric abu na iya zama tsakanin 0.0005" da 0.010" lokacin farin ciki.Ƙananan haɗin haɗin gwiwa a cikin ƙira mai sassauƙa.

Saboda haka, akwai ƙarancin haɗin da aka siyar.Bugu da ƙari, waɗannan da'irori suna ɗaukar kashi 10% na sararin allo mai tsauri

saboda sassaucin lankwasa.

Kayan abu

Ana amfani da kayan sassauƙa da motsi don kera PCB masu sassauƙa.Sassaucinsa yana ba shi damar juyawa ko motsa shi ba tare da lahani maras musanya ba ga abubuwan da ke tattare da shi ko haɗin kai.

Kowane bangare na PCB mai sassauƙa dole ne yayi aiki tare don yin tasiri.Kuna buƙatar kayan daban-daban don haɗa allon sassauƙa.

Rufe Layer Substrate

Mai ɗaukar hoto da matsakaicin insulating sun ƙayyade aikin substrate da fim.Bugu da ƙari, substrate dole ne ya iya tanƙwara da curl.

Polyimide da zanen gadon polyester galibi ana amfani da su a cikin da'irori masu sassauƙa.Waɗannan kaɗan ne daga cikin yawancin fina-finan polymer da za ku iya samu, amma akwai wasu da yawa da za ku zaɓa daga.

Yana da mafi kyawun zaɓi saboda ƙananan farashi da ingantaccen substrate.

PI polyimide shine kayan da masana'antun ke amfani da su.Irin wannan guduro na thermostatic na iya tsayayya da matsanancin zafi.Don haka narkewa ba matsala.Bayan thermal polymerization, har yanzu yana riƙe da elasticity da sassauci.Bugu da ƙari, yana da kyawawan kayan lantarki.

Kayan Gudanarwa

Dole ne ku zaɓi ɓangaren madugu wanda ke ba da iko da kyau sosai.Kusan duk hanyoyin tabbatar da fashewa suna amfani da jan karfe a matsayin madugu na farko.

Bayan kasancewarsa jagora mai kyau sosai, jan ƙarfe yana da sauƙin samu.Idan aka kwatanta da farashin sauran kayan gudanarwa, jan karfe ciniki ne.Gudanarwa bai isa ya watsar da zafi yadda ya kamata ba;dole ne kuma ya zama mai kula da thermal mai kyau.Ana iya yin madauri masu sassauƙa ta amfani da kayan da ke rage zafin da suke haifarwa.

Adhesives

Akwai manne tsakanin takardar polyimide da jan ƙarfe akan kowace allon kewayawa mai sassauƙa.Epoxy da acrylic sune manyan manne guda biyu da zaku iya amfani dasu.

Ana buƙatar manne mai ƙarfi don ɗaukar yanayin zafi da jan ƙarfe ke samarwa.