Substrate-ka aluminiumku waa laminate naxaas ah oo bir ku salaysan oo leh shaqo kuleyl wanaagsan. Waa shay saxan u eg oo ka samaysan maro elektaroonik ah oo fiber galaas ah ama qalab kale oo xoojin ah oo lagu shubay xabagta, xabagta kelida ah, iwm. saxan maar ah oo ku salaysan . Kangxin Circuit waxay soo bandhigaysaa waxqabadka substrate aluminium iyo daaweynta dusha sare ee alaabta.

Waxqabadka substrate aluminium

1.Waxqabadka kuleylka kuleylka heer sare ah

Taarikada aluminium-ku-salaysan ee naxaasta-ku-salaysan waxay leeyihiin waxqabad kuleyl aad u fiican, taas oo ah qaabka ugu caansan ee saxan noocan oo kale ah. PCB-ga ka samaysan ma aha oo kaliya inuu si wax ku ool ah uga hortago heerkulka shaqada ee qaybaha iyo substrates-ka lagu raran yahay inay kor u kacaan, laakiin sidoo kale si dhakhso ah kulaylka ay dhaliyaan qaybaha korantada, qaybaha awoodda sare, furayaasha waaweyn ee wareegga korontada iyo qaybaha kale. Waxa kale oo loo qaybiyaa cufnaanta yar, miisaanka khafiifka ah (2.7g/cm3), anti-oxidation, iyo qiimaha jaban, sidaa darteed waxa ay noqotay tan ugu waxtarka badan uguna badan ee xaashida isku-dhafka ah ee ku jirta laminates-ka birta ku salaysan. Iska caabbinta kulaylka saturated ee substrate aluminium dahaaran waa 1.10 ℃ / W iyo caabbinta kulaylku waa 2.8 ℃ / W, taas oo si weyn u hagaajinaysa fusing hadda ee silig naxaas ah.

2.Hagaajinta hufnaanta iyo tayada mashiinada

Aluminium-ku-salaysan naxaas-ku-salaysan waxay leeyihiin xoog farsamo oo sarreeya iyo adkaantooda, taas oo aad uga wanaagsan lakabyada naxaasta ku salaysan ee adag iyo dhoobada dhoobada ah. Waxay xaqiiqsan kartaa soo saarista looxyada daabacan ee ballaaran ee biraha birta ah, waxayna si gaar ah ugu habboon tahay in lagu dhejiyo qaybaha culus ee substrates sida. Intaa waxa dheer, substrate-ka aluminiumku waxa kale oo uu leeyahay fidsanaan wanaagsan, waxaana lagu soo ururin karaa oo lagu farsamayn karaa substrate-ka iyadoo la tumayo, la jeexjeexayo, iwm. Laminate naxaas ku salaysan ma .

3.Deganaansho cabbir sare

Laminatesyada kala duwan ee naxaasta ah, waxaa jira dhibaato ah ballaarinta kulaylka (xasiloonida cabbirka), gaar ahaan balaadhinta kulaylka ee jihada dhumucda (Z-axis) ee guddiga, taas oo saameynaysa tayada godadka birta ah iyo fiilooyinka. Sababta ugu weyn ayaa ah in isku-dhafka fidinta tooska ah ee taarikada ay kala duwan yihiin, sida naxaasta, iyo isku-xirnaanta ballaarinta tooska ah ee lakabka maro fiber epoxy galaas waa 3. Balaadhinta tooska ah ee labada waa mid aad u kala duwan, taas oo ay fududahay in la keeno kala duwanaanshaha balaadhinta kulaylka ee substrate-ka, taasoo keenaysa wareegga naxaasta iyo godka birta ah inay jabaan ama dhaawacmaan. Isku xirka fidinta tooska ah ee substrate aluminium ayaa u dhexeeya, aad ayuu uga yar yahay substrate-ka guud ee resin, wuxuuna ku dhow yahay isku xidhka fidinta tooska ah ee naxaasta, kaas oo ku habboon hubinta tayada iyo kalsoonida wareegga daabacan.

Daaweynta dusha sare ee alaabta aluminiumka

1. Burburinta

Dusha sare ee saxanka ku salaysan aluminium waxaa lagu dahaadhay lakabka saliidda inta lagu jiro farsamaynta iyo gaadiidka, waana in la nadiifiyaa ka hor isticmaalka. Mabda'a ayaa ah in loo isticmaalo gaaska (gaaska duulista guud) sida dareere ahaan, kaas oo la milmi karo, ka dibna la isticmaalo wax nadiifinta biyaha-milmi leh si looga saaro wasakhda saliidda. Ku raaci dusha biyo socda si aad nadiif uga dhigto oo aanay lahayn dhibco biyo ah.

2. Hoos u dhaca

Substrate aluminium ka dib daawaynta kor ku xusan ayaa wali dufan aan la saarin dusha ku leh. Si aad si buuxda uga saarto, ku qooy alkali sodium hydroxide xooggan 50 ° C ilaa 5 daqiiqo, ka dibna ku raaci biyo nadiif ah.

3. Etching alkaline. Dusha sare ee saxanka aluminiumka sida maaddada aasaasiga ah waa inay lahaato qallafsanaan gaar ah. Maaddaama substrate-ka aluminiumka iyo lakabka filimka aluminium oksaydh ee dusha sare ay yihiin labadaba qalabka amphoteric, dusha sare ee alaabta aluminiumka ah ayaa lagu qallajin karaa iyadoo la isticmaalayo nidaamka xalalka alkaline ee acidic, alkaline ama isku dhafan. Intaa waxaa dheer, walxaha kale iyo waxyaabaha lagu daro waxay u baahan yihiin in lagu daro xalka qalafsan si loo gaaro ujeedooyinka soo socda.

4. Kiimikada dhalaalaysa (maroojin). Sababtoo ah maaddada aluminiumku waxay ka kooban tahay biraha kale ee wasakhaysan, way fududahay in la sameeyo isku-dhafka aan dabiiciga ahayn ee u hoggaansamaya dusha sare ee substrate inta lagu jiro habka qallafsanaanta, sidaas darteed isku-dhafka aan dabiiciga ahayn ee laga sameeyay dusha sare waa in la falanqeeyaa. Sida laga soo xigtay natiijooyinka falanqaynta, diyaari xal ku habboon dhuuban, oo ku rid substrate aluminium qallafsan ee xalka dhuujinta si loo hubiyo wakhti go'an, si dusha sare ee saxanka aluminiumku nadiif yahay oo dhalaalaya.