Hordhac substrate PCB

Kala soocida substrates

Agabka looxa daabacan ee guud waxa loo qaybin karaa laba qaybood: maaddooyinka substrate adag iyo agabka hoose ee dabacsan.Nooc muhiim ah oo ka mid ah walxaha guud ee adag waa laminate naxaas ah.Waxay ka samaysan tahay Qalabka Reinforeing, oo lagu shubay xabagta xabagta, la qalajiyey, la jarjaray oo lagu dahaadhay meel bannaan, ka dibna lagu daboolay bireed naxaas ah, iyada oo la isticmaalayo xaashida birta sida caaryada, waxaana lagu farsameeyaa heerkul sare iyo cadaadis sare oo ku jira saxaafadda kulul.Waraaqaha badan ee la daaweeyay, waa naxaas ku dahaaran habka wax soo saarka ee alaabada dhammaatay (inta badan maro dhalada ah oo lagu qooyay resin, iyada oo loo marayo habaynta qalajinta).

Waxaa jira habab kala duwan oo loo kala sooci karo laminate clad copper.Guud ahaan, marka loo eego qalabka xoojinta kala duwan ee guddiga, waxaa loo qaybin karaa shan qaybood: saldhigga warqadda, saldhigga maro fiber galaas, saldhig ka kooban (CEM taxane), saldhig guddiga multilayer laminated iyo saldhig wax gaar ah (ceramics, biraha saldhig udubdhexaadka ah, iwm.).Haddi looxa loo isticmaalo xabagta xabagta kala duwan ee kala soocida, warqadda caadiga ah - ku salaysan CCI.Waxaa jira: xabagta phenolic (XPc, XxxPC, FR 1, FR 2, iwm), epoxy resin (FE 3), xabagta polyesterka iyo noocyo kale.CCL-ga caadiga ah waa epoxy resin (FR-4, FR-5), kaas oo ah nooca ugu badan ee la isticmaalo ee maro fiber galaas ah.Intaa waxaa dheer, waxaa jira resins kale oo gaar ah (maro fiber galaas, fiber polyamide, maro aan tolmo lahayn, iwm, sida alaabta lagu daray): bismaleimide modified trizine resin (BT), polyimide resin (PI), diphenyl ether resin (PPO), Imide maleic anhydride - resin styrene (MS), polycyanate ester resin, resin polyolefin, iwm.

Marka loo eego waxqabadka dib-u-dhigista ololka ee CCL, waxa loo qaybin karaa nooca dab-demiska (UL94-VO, UL94-V1) iyo nooca aan ololka lahayn (Ul94-HB).12-kii sano ee la soo dhaafay, iyada oo fiiro gaar ah la siiyay ilaalinta deegaanka, nooc cusub oo ah CCL-da-hortagga ololka oo aan lahayn bromine ayaa la kala saaray, taas oo loo yaqaan "cagaaran olol-dejinta CCL".Iyadoo horumarinta degdega ah ee tignoolajiyada alaabta elektiroonigga ah, cCL waxay leedahay shuruudaha waxqabadka sare.Sidaa darteed, laga bilaabo kala-soocidda waxqabadka CCL, oo ​​loo qaybiyey waxqabadka guud ee CCL, dielectric joogto ah CCL hooseeya, iska caabin kulayl sare CCL ( saxan guud L ee 150 ℃ kor ku xusan), hooseeyo ballaarinta kulaylka coefficient CCL (guud ahaan loo isticmaalo on substrate baakadaha) iyo noocyada kale .

Heerka fulinta substrate

Iyada oo horumarinta iyo horumarka joogtada ah ee tignoolajiyada elektiroonigga ah, shuruudaha cusub ayaa si joogto ah loogu dhejiyaa agabka substrate-ka guddiga daabacan, si kor loogu qaado horumarinta joogtada ah ee heerarka saxanka naxaasta ah.Waqtigan xaadirka ah, heerarka ugu muhiimsan ee alaabta substrate waa sida soo socota.
1) Heerarka Qaranka ee Substrates Waqtigan xaadirka ah, Heerarka qaranka ee substrates ee Shiinaha waxaa ka mid ah GB/T4721 — 4722 1992 iyo GB 4723 — 4725 — 1992 Heerka JI ee Jabbaan waxaana la soo saaray 1983kii.

Iyada oo horumarinta iyo horumarka joogtada ah ee tignoolajiyada elektiroonigga ah, shuruudaha cusub ayaa si joogto ah loogu dhejiyaa agabka substrate-ka guddiga daabacan, si kor loogu qaado horumarinta joogtada ah ee heerarka saxanka naxaasta ah.Waqtigan xaadirka ah, heerarka ugu muhiimsan ee alaabta substrate waa sida soo socota.
1) Heerarka Qaranka ee Substrates Waqtigan xaadirka ah, heerarka qaranka Shiinaha ee substrates waxaa ka mid ah GB/T4721 — 4722 1992 iyo GB 4723 — 4725 — 1992 Jaban JIs oo la soo saaray 1983kii.
2) Heerarka kale ee qaranka waxaa ka mid ah Jaban JIS standard, American ASTM, NEMA, MIL, IPc, ANSI iyo UL standard, British Bs standard, German DIN iyo standard VDE, French NFC iyo UTE standard, Canadian CSA standard, Australian AS standard, FOCT standard Midowgii Soofiyeeti hore, iyo heerka caalamiga ah ee IEC

Halbeegga guud ee magaca qaranka waxaa loo tixraacaa sida waaxda qaabaynta magaca caadiga ah
JIS- Jaban Heerarka Warshadaha - Ururka Gaarka ah ee Japan
ASTM- Bulshada Maraykanka ee Heerarka Agabka Shaybaadhka -Jaaliyada Maraykanka ee Foofyada Imtixaanka iyo Qalabka
NEMA- Ururka Qaranka ee Wax-soo-saarka Korantada Heerka -Nafiomll Waxsoosaarka Korontada
MH- Heerarka Milatari ee Mareykanka -Waaxda Difaaca Qeybaha Gaarka ah ee Milatariga iyo Heerarka
IPC- Isku-xidhka Isku-xidhka Wareegga Ameerika iyo Ururka Baakadaha Heerka -Toddobaka runta ah Isku-xidhka iyo Xidhitaanka Wareegyada EIectronics
ANSl- Machadka Halbeegga Qaranka ee Maraykanka