Siqinisekisa ixabiso lemali ngokubalula kwezinto kunye nolawulo lomgangatho. Imigangatho yethu yolawulo lomgangatho ingqongqo kakhulu kunaleyo yabanye abathengisi, kwaye iqinisekisa ukuba iimveliso zethu zinganika umdlalo opheleleyo kwintsebenzo elindelekileyo.

Nokuba akukho mahluko ekuboneni kokuqala, iimveliso ezikumgangatho ophezulu ziya kuthi ekugqibeleni zibaluleke ngakumbi

Kungenxa yomphezulu kuphela apho sibona umohluko, obaluleke kakhulu kuzinzo nasekusebenzeni kwawo PCB kubomi bonke. Abathengi abasoloko beyibona le yantlukwano, kodwa banokuqiniseka ukuba ii-PCBs ezinikezelweyo ziyahlangabezana nemigangatho esemgangathweni yomgangatho.

Whether in the manufacturing and assembly process or in practical use, PCB should have reliable performance, which is very important. In addition to relevant costs, defects in the assembly process may be brought into the final product by PCB, and faults may occur in the actual use process, resulting in claims. Therefore, from this point of view, it is not too much to say that the cost of a high-quality PCB is negligible.

Kuwo onke amacandelo entengiso, ngakumbi lawo avelisa iimveliso kwiindawo eziphambili zesicelo, iziphumo zoko kusilela azicingeki.

These aspects should be kept in mind when comparing PCB prices. Although the initial cost of reliable, guaranteed and long-life products is high, they are worth it in the long run.

Ukucaciswa kwePCB kudlula iimfuno zeklasi 2 ye-IPC

Ukuthembeka okuphezulu kwebhodi yesekethe-14 yeempawu ezibaluleke kakhulu ezikhethwe kwiimpawu ezili-103

1. 25 micron umngxuma eludongeni ubhedu ubukhulu

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Ukunyaniseka okuphuculweyo, kubandakanya ukuphucula ukwandiswa kwe-z-axis.

Umngcipheko wokungenzi njalo

Iingxaki zonxibelelwano zombane ngexesha lokuvutha komngxunya okanye i-degassing, indibano (ukwahlulwa okungaphakathi, ukuqhekeka kodonga lomngxunya), okanye iimpazamo zinokwenzeka phantsi kweemeko zomthwalo ngexesha lokwenyani lokusetyenziswa. IPC iklasi yesi-2 (umgangatho owamkelweyo yimizi-mveliso emininzi) ufuna i-20% engaphantsi kwesingxobo sobhedu.

2. Akukho ukulungiswa kwe-welding okanye ukulungiswa kwesekethe evulekileyo

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Perfect circuit can ensure reliability and safety, no maintenance and no risk

Umngcipheko wokungenzi njalo

Ukuba ayilungiswa ngokufanelekileyo, ibhodi yesekethe iya kuba yisekethe evulekileyo. Nokuba ukulungiswa ‘kulungile’, kukho umngcipheko wokusilela phantsi kweemeko zomthwalo (ukungcangcazela, njl. Njl.

3. Ukugqitha kwiimfuno zokucoceka kweenkcukacha ze-IPC

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Ukuphucula ucoceko lwe-PCB kunokuphucula ukuthembeka.

Umngcipheko wokungenzi njalo

The residue and solder accumulation on the circuit board will bring risks to the anti welding layer, and the ion residue will lead to the risk of corrosion and pollution on the welding surface, which may lead to reliability problems (bad solder joint / electrical failure), and finally increase the probability of actual failure.

4.Ukulawula ngokungqongqo ubomi benkonzo yonyango ngalunye lomphezulu

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Ukuqina, ukuthembeka, kunye nokunciphisa umngcipheko wokungena kobumanzi

Umngcipheko wokungenzi njalo

Ngenxa yotshintsho lwe-metallographic kunyango lwaphezulu lweebhodi zesekethe ezindala, iingxaki ze-solder zinokwenzeka, kunye nokungena kokufuma kunokukhokelela kwi-delamination, umaleko wangaphakathi kunye nokwahlula udonga lomngxunya (isekethe evulekileyo) kwinkqubo yendibano kunye / okanye ukusetyenziswa kwayo.

5. Sebenzisa ii-substrates ezaziwa kwilizwe liphela- musa ukusebenzisa “ezasekhaya” okanye iimveliso ezingaziwayo

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Ukuphucula ukuthembeka kunye nokusebenza okwaziwayo

Umngcipheko wokungenzi njalo

Ukusebenza kakubi koomatshini kuthetha ukuba ibhodi yesekethe ayinakho ukwenza njengoko kulindelwe phantsi kweemeko zebandla. Umzekelo, ukusebenza okuphezulu kokunyusa kuya kukhokelela kwi-delamination, isekethe evulekileyo kunye ne-warpage. Ukubuthathaka kweempawu zombane kunokukhokelela ekusebenzeni kakubi kwe-impedance.

6. Unyamezelo lobhedu olunxitywe laminate luya kuhlangabezana neemfuno zeklasi ye-ipc4101 B / L

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Strictly controlling the thickness of dielectric layer can reduce the deviation of expected value of electrical performance.

Umngcipheko wokungenzi njalo

Ukusebenza kombane akunakho ukuhlangabezana neemfuno ezichaziweyo, kwaye kuya kubakho umahluko omkhulu kwimveliso / kwintsebenzo yebhetshi efanayo yamacandelo.

7. Chaza izinto zokumelana nezinto zokuthengisa ukuze kuqinisekiswe ukuthotyelwa kweemfuno zeklasi T ze-ipc-sm-840

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Qaphela i-inki “egqwesileyo”, uqaphele ukhuseleko lwe-inki, kwaye uqinisekise ukuba i-solder iyayichasa i-ink ihlangabezana nemigangatho ye-UL.

Umngcipheko wokungenzi njalo

Ii-inki ezikumgangatho ophantsi zinokubangela ukunamathela, ukumelana nokuhamba kunye neengxaki zobulukhuni. Zonke ezi ngxaki ziya kukhokelela ekwahlukaneni kwe-solder ukuxhathisa kwibhodi yesekethe kwaye ekugqibeleni kukhokelele ukubola komjikelo wobhedu. Iimpawu zokugquma ezingalunganga zinokubangela imijikelezo emifutshane ngenxa yokunxibelelana okungalindelekanga kombane / arcing.

8. Chaza ukunyamezelana kweemilo, imingxunya kunye nezinye izinto ezenziwa ngoomatshini

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Ukunyamezelana okungqongqo kunokuphucula umgangatho wemveliso-ukuphucula ukulunga, imilo kunye nomsebenzi

Umngcipheko wokungenzi njalo

Iingxaki ngexesha lendibano, ezinjengokulungelelaniswa / ukulunga (ingxaki yenaliti efanelekileyo iya kufunyanwa kuphela emva kokugqitywa kwendibano). Ukongeza, kuya kubakho iingxaki ekunyuseni isiseko ngenxa yokunyuka kokuphambuka okubonakalayo.

9. The thickness of solder resist is specified, although it is not specified in IPC

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Ukuphuculwa kweempawu zokugquma ngombane kunciphisa umngcipheko wokuxobuka okanye ukulahleka kokubambelela kwaye kuphuculwe amandla okumelana nefuthe loomatshini- naphina apho kwenzeka khona impembelelo yomatshini!

Umngcipheko wokungenzi njalo

Umaleko omncinci we-solder oxhathisayo ungakhokelela kunamatheliso, ukuxhathisa ukubhobhoza kunye neengxaki zobulukhuni. Zonke ezi ngxaki ziya kukhokelela ekwahlukaneni kwe-solder ukuxhathisa kwibhodi yesekethe kwaye ekugqibeleni kukhokelele ukubola komjikelo wobhedu. Iimpawu zokufakelwa okungalunganga ngenxa yentsimbi yokuxhathisa ukungxwelerha kunokubangela isekethe emfutshane ngenxa yokuqhutywa ngengozi / yearc.

10. Ukubonakala kunye nokulungiswa kweemfuno kuchaziwe, nangona kungachazwanga yi-IPC

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Kwinkqubo yokuvelisa, unonophelo nokhathalelo ludala ukhuseleko.

Umngcipheko wokungenzi njalo

Ukwahluka kwemikrwelo, umonakalo omncinci, ukulungiswa kunye nokulungiswa- iibhodi zesekethe ziyasebenza kodwa azijongeka zilungile. Ukongeza kwiingxaki ezinokubonakala ngaphezulu komhlaba, zeziphi iingozi ezingabonakaliyo, ifuthe kwindibano kunye nomngcipheko osetyenziswayo?

11. Iimfuno zobunzulu bemingxunya yeplagi

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Imingxunya yemigangatho ephezulu iya kunciphisa umngcipheko wokungaphumeleli ngexesha lendibano.

Umngcipheko wokungenzi njalo

Intsalela yemichiza kwinkqubo yemvula yegolide inokuhlala kwimingxunya enemingxunya yeplagi engonelanga, okukhokelela kwiingxaki ezinje ngokuthamba. Ukongeza, amaso amathini anokufihlwa emngxunyeni. Ngexesha lokudibana okanye lokusetyenziswa koqobo, ubuhlalu be-tin bunokuphuma kwaye bubangele ukujikeleza okufutshane.

12. UPeter sd2955 ucacisa uphawu kunye nemodeli yeglue eluhlaza enokuxutywa

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Ukutyunjwa kweglue eluhlaza okwesibhakabhaka kunokuthintela ukusetyenziswa “kwendawo” okanye iimveliso ezincinci.

Umngcipheko wokungenzi njalo

Iglu engaphantsi okanye ebiza ixabiso eliphantsi inokubhabha, inyibilike, iqhekeke okanye isethwe njengekhonkrithi ngexesha lokuhlangana, ukuze iglu enokuhluthwa ingabinakuhluthwa / ingasebenzi.

13. Yenza iinkqubo ezithile zokuvunywa kunye noku-odolwa kwintengiso nganye

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Ukuphunyezwa kwale nkqubo kuqinisekisa ukuba zonke iinkcukacha ziqinisekisiwe.

Umngcipheko wokungenzi njalo

Ukuba imigaqo yemveliso ayiqinisekiswanga ngononophelo, isiphumo esiphambeneyo sinokungafunyanwa de kube yindibano okanye imveliso yokugqibela, emva koko kushiywe lixesha.

14. Iipleyiti ezigutyiweyo ezineeyunithi ezilahliweyo azamkelekanga

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Ukungasebenzisi indibano ekhethekileyo kunokunceda abathengi baphucule ukusebenza kakuhle.

Umngcipheko wokungenzi njalo

Ingxelo uvavanyo

Inkqubo yendibano ekhethekileyo iyafuneka kwiibhodi ezingafakwanga kakuhle. Ukuba ibhodi yeyunithi ekhutshiweyo (i-x-out) ayiphawulwanga ngokucacileyo okanye yahlukanisiwe kwibhodi efihliweyo, kunokwenzeka ukuba uqokelele le bhodi imbi idumileyo, ngaloo ndlela kuchitha iindawo kunye nexesha.