Ishubile Kangakanani i-1oz Copper?

Embonini yebhodi lesifunda ephrintiwe, indlela evamile yokuveza ukujiya kwethusi ku- PCB ngama-ounces (oz). Kungani usebenzise iyunithi yesisindo ukucacisa ukujiya? Umbuzo omuhle! Uma u-1oz (28.35 amagremu) wethusi enziwe isicaba ukuze amboze ngokulinganayo unyawo-skwele ongu-1 wendawo (0.093 square metre), ukujiya okuzoba umphumela kuzoba ngu-1.37mils (0.0348mm). Ishadi lokuguqulwa lamayunithi ahlukene okulinganisa lingatholakala ngezansi.

Ishadi Lokuguqulwa Kokuqina Kwethusi

oz	1	1.5	2	3	4	5	6
imis	1.37	2.06	2.74	4.11	5.48	6.85	8.22
intshi	0.00137	0.00206	0.00274	0.00411	0.00548	0.00685	0.00822
mm	0.0348	0.0522	0.0696	0.1044	0.1392	0.1740	0.2088
µm	34.80	52.20	69.60	104.39	139.19	173.99	208.79

 

Ngidinga i-Copper engakanani?

Ngomkhawulo obanzi, ama-PCB amaningi enziwa ngethusi elingu-1oz kungqimba ngalunye. Uma amafayela akho engabandakanyi ukuphrinta kwendwangu noma okunye ukucaciswa, sizothatha u-1oz oqediwe isisindo sethusi kuzo zonke izendlalelo zethusi. Uma umklamo wakho udinga ama-voltage aphezulu, ukumelana, noma ama-impedances, ithusi elikhudlwana lingadingeka. Kunamathuluzi amaningana aku-inthanethi angakusiza ukuthi unqume ukuthi yibuphi ugqinsi, ububanzi noma ubude bokulandelela kwakho okudingeka kube yikho ukuze uzuze imiphumela oyihlosile. Amathuluzi ambalwa anjalo ezinkampani zangaphandle axhunywe ngezansi. I-PCB Prime ayihlangene nababhali bala mathuluzi.

 

Ukusabalalisa Kwethusi

Njengomthetho ojwayelekile, ithusi kufanele lisakazwe ngokulinganayo ngangokunokwenzeka kulo lonke umklamo wakho. Hhayi kuphela ngokuphathelene nokujiya kwethusi kungqimba ngalunye, kodwa nokuthi isatshalaliswa kanjani kulo lonke ungqimba. Yebo, lokhu akwenzeki ngaso sonke isikhathi, kodwa khumbula lokhu phakathi nesakhiwo.

I-Plating ne-etching yizinqubo zemvelo ngomqondo wokuthi i-copper clad laminate icwiliswa ku-vat yamakhemikhali ukuze icutshungulwe. Akukho ukulawula okunembile kokuthi ithusi likhishwa noma lifakwe kuphi. Phakathi ne-etch, isithombe esihlosiwe siyafihlwa ukuze sisivikele ku-etchant, kodwa amakhemikhali ethangini ancibilikisa ithusi ngamanani ahluke kancane kuye ngokuthi izici zikuphi kuphaneli, ukubekwa kwephaneli ngaphakathi kwethangi ngokwalo, nokuthi liminyene kangakanani. noma kancane izici zethusi zisakazwa.

Isixazululo samakhemikhali ethangini lokucwenga kanye nokufaka liyanyakaza futhi lisakazwe ngesikhathi sokucubungula ukuze kuncishiswe lokhu kungqubuzana; kodwa-ke, iphaneli elinokuminyana kwethusi elihluke kakhulu lingaba yinkinga. Phakathi nesigaba sakho sokuklama, zama ukusabalalisa ithusi lakho ngokulinganayo kulo lonke ibhodi kunokuba ube nezikhala ezinkulu ezivulekile ezinezici ezingazodwa.

INDLELA YOKUKHETHA OKUFANELE I-PCB YETHUSI UBUDILI

Ukukhetha ubukhulu bekhopha esindayo obufanele ukuze busetshenziswe ku-plated through hole (PTH) kudlala isici esibalulekile ekuthembekeni okuphelele kwebhodi lesifunda eliphrintiwe. Kunezici ezimbili ezibalulekile okufanele zicatshangelwe lapho kunqunywa ubukhulu bekhopha be-PCB obulungile. Esokuqala umthamo wamanje womgqomo wokukhuphuka kokushisa okwamukelekayo. Okwesibili amandla okusebenza anqunywa ukushuba kwethusi, usayizi wembobo kanye nokuthi kukhona noma cha noma iyiphi i-vias yokusekela.

Amakhasimende amaningi afuna ukwakha ama-PCB asebenza kahle kakhulu ngenani eliphansi. Isinyathelo sokuqala ukukhetha ugqinsi lwethusi olufanele lohlobo lwe-PCB yakho. Izici ezihlukile zalokhu ukujiya zibalulekile ekunqumeni imisebenzi, ukusebenza kwama-PCB. Uma ungathanda ulwazi olwengeziwe mayelana nokukhetha kogqinsi lwe-PCB yethusi noma ukuthi ungakhetha kanjani isudi engcono kakhulu ye-PCB yakho, sicela usithinte. Asinikezi nje izeluleko ezinhle kodwa nesixazululo esiphelele. Uzothola ama-PCB amancane nahlakaniphile asebenza kahle kakhulu nokwethembeka okuphezulu kwa-YMS.