Iindaba
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Ngaba uyazi ukuba zeziphi izibonelelo zePCB enokubalwa?
[VW PCBworld] Abayili banokuyila iibhodi zesekethe eziprintiweyo ezinamanani angaqhelekanga (PCBs). Ukuba i-wiring ayifuni umaleko owongezelelweyo, kutheni uyisebenzise? Ngaba ukunciphisa iileya bekungayi kwenza ibhodi yesekethe ibe bhityileyo? Ukuba kukho ibhodi yesekethe enye, ngaba iindleko aziyi kuba ngaphantsi? Nangona kunjalo, kwezinye iimeko ...Funda ngokugqithisileyo -
Kutheni iinkampani zePCB zikhetha iJiangxi yokwandisa umthamo kunye nokudluliselwa?
[VW PCBworld] Iibhodi zesekethe eziprintiweyo zezona ndawo zibalulekileyo zonxibelelwano lwe-elektroniki kwiimveliso zombane, kwaye zaziwa “njengomama weemveliso zombane”. Umzantsi weebhodi zesekethe eziprintiweyo zisasazwa ngokubanzi, zigubungela izixhobo zonxibelelwano, iikhompyuter kunye neeperipherals, ...Funda ngokugqithisileyo -
Nguwuphi umahluko phakathi kokufakwa kwegolide kunye nokufakwa kwesilivere kwibhodi yePCB? Imiphumo yayimangalisa
Abadlali abaninzi be-DIY baya kufumanisa ukuba iimveliso zebhodi ezahlukeneyo kwimarike zisebenzisa iindidi ezidizzy zemibala yePCB. Eyona mibala ixhaphakileyo ye-PCB imnyama, eluhlaza, eluhlaza, etyheli, emfusa, ebomvu, nemdaka. Abanye abavelisi baphuhlise emhlophe, epinki kunye neminye imibala eyahlukileyo yePCB. Kwisithethe...Funda ngokugqithisileyo -
Kutheni le nto iPCB ngemingxunya kufuneka iplagwe? Ngaba kukho ulwazi olwaziyo?
Umngxuma ohambisa i-Via yaziwa ngokuba ngomngxuma. Ukuze kuhlangatyezwane neemfuno zabathengi, ibhodi yesekethe ngomngxuma kufuneka iplagwe. Emva kokuziqhelanisa okuninzi, inkqubo ye-aluminiyam yesiqhelo yokuplaga iyatshintshwa, kwaye imaski yebhodi yesekethe yomphezulu we-solder kunye nokuplaga kugqityezelwe nge-wh...Funda ngokugqithisileyo -
Ngo-2021, imeko ye-quo kunye namathuba e-PCB yeemoto
Ubungakanani beemarike zePCB zasekhaya, ukuhanjiswa kunye nokhuphiswano lomhlaba 1. Ngokwembono yemarike yasekhaya, ubungakanani bemarike yeePCB zeemoto yi-10 yeebhiliyoni zeeyuan, kwaye iindawo zesicelo ziibhodi ezingatshatanga nezimbini ezinenani elincinci leebhodi ze-HDI zeradar. . 2. Kule st...Funda ngokugqithisileyo -
Unepere yezandla ezikrelekrele “ezihonjisiweyo” kwiPCB yesiphekepheke
U-Wang oneminyaka engama-39 ubudala "welder" unezandla ezimhlophe ezikhethekileyo kwaye ezibuthathaka. Kwiminyaka eyi-15 edlulileyo, esi sibini sezandla ezinobuchule siye sathatha inxaxheba ekwenziweni kweeprojekthi ezingaphezu kwe-10 zomthwalo wendawo, kubandakanywa uchungechunge oludumileyo lweShenzhou, uchungechunge lweTiangong kunye ne-Chang'e ser ...Funda ngokugqithisileyo -
Ungawuqwalasela njani ungqamaniso lwe-impedance xa uyila i-schematics yoyilo lwePCB enesantya esiphezulu?
Xa uyila iisekethe zePCB ezinesantya esiphezulu, ukuthelekisa i-impedance yenye yezinto zoyilo. Ixabiso le-impedance linobudlelwane obupheleleyo kunye nendlela yocingo, njengokuhamba kwi-surface layer (microstrip) okanye umaleko wangaphakathi (i-stripline / double stripline), umgama ukusuka kuluhlu lwereferensi (i-powe...Funda ngokugqithisileyo -
I-laminate ye-Copper efakwe kwi-core substrate
Inkqubo yokuvelisa i-copper clad laminate (CCL) kukufakela izinto eziqiniswayo kunye ne-organic resin kwaye uyomise ukwenza i-prepreg. I blank eyenziwe prepregs eziliqela elaminethiweyo kunye, elinye okanye macala omabini egqunywe ngefoyile yobhedu, kunye nepleyiti-shape impahla eyenziwe ngokucinezela hot. F...Funda ngokugqithisileyo -
Ezinye iingxaki ezinzima ezinxulumene ne-PCB enesantya esiphezulu, ngaba uzisombulule amathandabuzo akho?
Ukusuka kwihlabathi le-PCB 1. Ukuqwalasela njani ukuthelekiseka kokuthintela xa uyila i-schematics yoyilo lwePCB enesantya esiphezulu? Xa uyila iisekethe zePCB ezinesantya esiphezulu, ukuthelekisa i-impedance yenye yezinto zoyilo. Ixabiso le-impedance linobudlelwane obupheleleyo kunye nendlela yocingo, njengokuhamba kwi-su...Funda ngokugqithisileyo -
Ngawaphi amathuba ophuhliso ushishino lwePCB onalo kwixesha elizayo?
Ukusuka kwi-PCB World-- 01 Ulwalathiso lwamandla emveliso luyatshintsha Ulwalathiso lwamandla emveliso kukwandisa imveliso kunye nokwandisa umthamo, kunye nokuphucula iimveliso, ukusuka kwinqanaba eliphantsi ukuya phezulu. Kwangaxeshanye, abathengi abasezantsi akufuneki bagxile kakhulu...Funda ngokugqithisileyo -
Ngokwezixhobo zokuqinisa ibhodi yePCB, yahlulwe ngokubanzi kwezi ntlobo zilandelayo:
Ngokutsho izinto PCB ukuqinisa ibhodi, yahlulwe ngokubanzi kwezi ntlobo zilandelayo: 1. Phenolic PCB iphepha substrate Kuba olu hlobo ibhodi PCB iqulunqwe yintlama yephepha, intlama iinkuni, njalo njalo, ngamanye amaxesha iba ikhadibhodi, V0 ibhodi, ilangatye- ibhodi retardant kunye 94HB, etc. Iqabane layo eliphambili...Funda ngokugqithisileyo -
Iphakheji ethambileyo yeCOB
1. Yintoni iphakheji ethambileyo ye-COB Abasebenzisi be-intanethi abanonophelo banokufumanisa ukuba kukho into emnyama kwezinye iibhodi zesekethe, yintoni le nto? Kutheni ikwibhodi yesekethe? Uyintoni umphumo? Enyanisweni, olu luhlobo lwephakheji. Sihlala siyibiza ngokuba "iphakheji ethambileyo". Kuthiwa ipakethe ethambileyo sisenzo...Funda ngokugqithisileyo
