1. Waa maxay sababta loo isticmaalo looxyada wareegga dhoobada

PCB caadiga ah waxaa sida caadiga ah laga sameeyey bireed naxaas ah iyo substrate bonding, iyo walxaha substrate waa inta badan fiber galaas (FR-4), xabagta phenolic (FR-3) iyo qalab kale, koollada sida caadiga ah waa phenolic, epoxy, iwm. In nidaamka Ka-hortagga PCB ay sabab u tahay diiqada kulaylka, arrimo kiimikaad, habka wax-soo-saarka aan habboonayn iyo sababo kale, ama habka naqshadaynta iyadoo ay ugu wacan tahay labada dhinac ee asymmetry copper, way fududahay in lagu hoggaamiyo heerar kala duwan oo ah guddiga PCB

PCB Maroojin

Iyo mid kale oo PCB ah - substrate dhoobada, sababtoo ah waxqabadka kuleylka kulaylka, awoodda qaadista hadda, dahaarka, fidinta kuleylka kuleylka, iwm, ayaa aad uga fiican marka loo eego guddiga PCB fiber galaas caadiga ah, sidaas darteed waxaa si ballaaran loo isticmaalaa qalabka korontada ee awoodda sare leh. , Aerospace, Milateri Electronics iyo alaabooyin kale.

Substrates dhoobada

Iyada oo PCB caadiga ah la isticmaalayo bireed naxaas koollo ah iyo xidhitaanka substrate, PCB dhoobada waxay ku jirtaa jawi heerkul sarreeya, iyada oo loo marayo habka isku xidhka foornada naxaasta iyo substrate dhoobada oo la isku daray, xoog adag oo adag, bireed naxaas ah ma dhici doono, isku halaynta sare, waxqabadka xasilloon ee sare heerkulka, deegaanka qoyaan badan

2. Waxyaabaha ugu muhiimsan ee substrate dhoobada

Alumina (Al2O3)

Alumina waa sheyga ugu badan ee loo isticmaalo substrate-ka dhoobada dhoobada, sababtoo ah farsamada, kulaylka iyo guryaha korontada marka la barbar dhigo dhoobada kale ee oksaydhka, xoogga sare iyo xasiloonida kiimikada, iyo ilaha qani ee alaabta ceeriin, oo ku habboon noocyo kala duwan oo tiknoolaji ah iyo qaabab kala duwan. .Marka loo eego boqolkiiba alumina (Al2O3) waxaa loo qaybin karaa 75 porcelain, 96 porcelain, 99.5 porcelain.Qalabka korantada ee aluminiumku ma saameeyaan waxyaabaha kala duwan ee aluminiumka, laakiin sifooyinkeeda makaanikada iyo kuleylka kuleylka ayaa si weyn u beddela.Substrate-ka nadiifka ah ee hooseeya wuxuu leeyahay dhalo badan iyo qallafsanaan dusha sare leh.Marka ay sare u kacdo nadiifinta substrate-ka, ayaa ka sii fudud, is haysta, khasaare dhexdhexaad ah, laakiin qiimuhu sidoo kale wuu sarreeyaa.

Beryllium oxide (BeO)

Waxay leedahay kulaylka kuleylka ka sarreeya aluminium birta ah, waxaana loo isticmaalaa xaaladaha heerkulka kuleylka sare loo baahan yahay.Si degdeg ah ayey hoos ugu dhacdaa ka dib marka heerkulku dhaafo 300 ℃, laakiin horumarkeeda waxa xaddidaya sunteeda.

Aluminium nitride (AlN) 

Aluminium nitride ceramics waa ceramics leh budada nitride aluminium sida wajiga ugu weyn ee crystalline.Marka la barbar dhigo substrate dhoobada alumina, caabbinta dahaarka, dahaarka u adkeysanaya danab sare, joogto ah dielectric hoose.Dhaqdhaqaaqeeda kuleylku waa 7 ~ 10 jeer ka Al2O3, iyo isugeynteeda balaadhinta kulaylka (CTE) waxay ku dhowdahay qalabka silikoon, taas oo aad muhiim ugu ah chips semiconductor awood sare leh.Habka wax soo saarka, kulaylka kulaylka ee AlN waxaa si weyn u saameeya nuxurka wasakhda oksijiinta hadhaaga ah, iyo kuleylka kulaylka ayaa si weyn loo kordhin karaa iyada oo la yareynayo nuxurka oksijiinta.Waqtigan xaadirka ah, kuleylka kuleylka ee habka

Iyada oo ku saleysan sababaha kor ku xusan, waxaa la ogaan karaa in ceramics alumina ay ku jiraan booska ugu horreeya ee dhinacyada microelectronics, korantada elektiroonigga ah, microelectronics isku dhafan iyo modules korantada sababtoo ah waxqabadkooda dhammaystiran ee sarreeya.

Marka la barbardhigo suuqa ee cabbirka isku midka ah (100mm × 100mm × 1mm), qalabka kala duwan ee qiimaha substrate dhoobada: 96% alumina 9.5 yuan, 99% alumina 18 yuan, aluminium nitride 150 yuan, beryllium oxide 650 yuan, waxaa la arki karaa in Farqiga qiimaha u dhexeeya substrates kala duwan sidoo kale waa xad weyn

3. Faa'iidooyinka iyo khasaaraha PCB dhoobada

Faa'iidooyinka

1. Awood qaadis weyn oo hadda ah, 100A hadda si joogto ah iyada oo loo marayo 1mm 0.3mm jir dhumucdiisuna tahay naxaas, kor u kaca heerkulka qiyaastii 17 ℃
2. Heerkulka sare u kaca waa kaliya 5 ℃ marka 100A hadda uu si joogto ah u dhex maro 2mm 0.3mm jir dhumucdiisuna tahay naxaasta.
3. Waxqabadka kulaylka ka sii wanaagsan, is-ballaadhinta kulaylka hooseeya, qaab xasiloon, ma fududa in la dagaallamo.
4. Dahaarka wanaagsan, caabbinta danab sare, si loo hubiyo badbaadada shakhsi ahaaneed iyo qalabka.

Khasaaro

Jilicsanaanta waa mid ka mid ah khasaarooyinka ugu weyn, taas oo keenta in la sameeyo looxyo yaryar oo keliya.

Qiimuhu waa qaali, shuruudaha alaabada elektiroonigga ah oo badan iyo sharciyo badan, guddiga wareegga dhoobada ama loo isticmaalo qaar ka mid ah alaabooyinka aadka u sarreeya, alaabooyinka hooseeya lama isticmaali doono gabi ahaanba.

4. Isticmaalka PCB dhoobada

a.Module elektaroonik ah oo awood sare leh, moduleka cadceedda, iwm

1. Korontada beddesha soo noqnoqoshada badan, gudbinta gobolka adag
2. Qalabka elektaroonigga ah ee baabuurta, hawada sare, qalabka elektarooniga ah
3. Alaabooyinka iftiinka LED ee awoodda sare leh
4. anteenada isgaarsiinta