Birta saldhigeedu yahay saxan naxaas ah iyo FR-4 waa laba qaybood oo inta badan loo isticmaalo saadka wareegga wareegga (PCB) ee warshadaha elektiroonigga ah. Waxay ku kala duwan yihiin qaabka walxaha, sifooyinka waxqabadka iyo goobaha codsiga. Maanta, Fastline waxay ku siin doontaa falanqayn is barbar dhig ah oo ku saabsan labadan shay oo ka eegaya dhinaca xirfada:
Saxan bir ah oo naxaas ah oo saldhigeedu yahay: Waa walxo PCB ku salaysan oo bir ah, oo badiyaa u isticmaala aluminium ama naxaasta substrate ahaan. Muuqaalkeeda ugu muhiimsan waa kuleylka kuleylka wanaagsan iyo awoodda kuleylka kuleylka, sidaas darteed waxay aad caan ugu tahay codsiyada u baahan kuleylka sare, sida iftiinka LED iyo beddelayaasha awoodda. Substrate-ka birta ah wuxuu si wax ku ool ah u socodsiin karaa kulaylka meelaha kulul ee PCB-ga ilaa looxa oo dhan, taasoo hoos u dhigaysa kulaylka kor u qaadista iyo hagaajinta guud ahaan waxqabadka aaladda.
FR-4: FR-4 waa walax laminate ah oo leh maro fiber galaas ah oo ah walxo xoojin ah iyo resin epoxy sida binder. Hadda waa substrate-ka PCB-ga ugu badan ee la isticmaalo, sababtoo ah xooggeeda farsamo ee wanaagsan, guryaha dahaarka korantada iyo guryaha ololka waxaana si weyn loogu isticmaalaa alaabooyin kala duwan oo elektaroonik ah. FR-4 waxay leedahay qiimaynta dib u dhigista ololka ee UL94 V-0, taas oo macnaheedu yahay in uu olol ku gubo wakhti aad u yar oo ku habboon in loo isticmaalo aaladaha elegtarooniga ah ee leh shuruudaha badbaadada sare.
farqiga muhiimka ah:
Walxaha Substrate-ka ah: Biraha-maxaasta ah ee dahaarka leh waxay isticmaalaan birta (sida aluminium ama naxaas) sida substrate-ka, halka FR-4 ay isticmaasho maro fiberglass ah iyo resin epoxy.
Dhaqdhaqaaqa kulaylka: Heerarka kulaylka ee xaashida daboolan ayaa aad uga sarreeya kan FR-4, kaas oo ku habboon codsiyada u baahan kuleylka wanaagsan.
Miisaanka iyo dhumucda: Go'yaal naxaas ah oo bir ah ayaa caadi ahaan ka culus FR-4 waxaana laga yaabaa inay khafiif noqdaan.
Awoodda habka: FR-4 waa sahlan tahay in la farsameeyo, oo ku habboon naqshadaynta PCB-da lakabyo badan; Saxan naxaas ah oo bir ah ayaa adag in la farsameeyo, laakiin waxay ku habboon tahay hal lakab ama naqshad dhowr lakab oo fudud.
Qiimaha: Qiimaha xaashida naxaasta ee birta ah ayaa badanaa ka sarreeya FR-4 sababtoo ah qiimaha birta oo sarreeya.
Codsiyada: Taarikada naxaasta ee birta ah ayaa inta badan loo adeegsadaa aaladaha elegtarooniga ah ee u baahan kulaylka wanaagsan, sida korantada korontada iyo nalalka LED. FR-4 waa wax badan oo la taaban karo, oo ku habboon inta badan aaladaha elektiroonigga ah ee caadiga ah iyo naqshadaha PCB-da lakabyada badan.
Guud ahaan, doorashada biraha gogosha ama FR-4 waxay inta badan ku xiran tahay baahida maareynta kulaylka ee alaabta, kakanaanta naqshadeynta, miisaaniyadda kharashka iyo shuruudaha badbaadada.