Tsela ea ho laola theko PCB kopano?

Kopano ea PCB litšenyehelo, moenjineri e mong le e mong oa elektroniki kapa moqapi o batla ho tseba ho fumana khotheishene e ntle ka ho fetisisa bakeng sa kopano ea PCB le hore na theko e ama litšenyehelo tsa kopano ea PCB joang. Malebela ke ana mabapi le mokhoa oa ho laola litheko tsa kopano ea PCB.

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Pele, utloisisa ka ho hlaka litšobotsi tsa litšenyehelo tsa kopano ea PCB (PCBA). Tse ling tsa litefiso tse kholo ka ho fetisisa li kenyelletsa:

(1) Mofuta oa Kopano Surface Mount (SMT) (SMD motsoako) Ka lesoba (DIP) kopanya (ka bobeli)

(2) Ho beoa ha likarolo ho kopa feela karolo ea boemo bo holimo ho kopa kopano ea Doulbe e mahlakore a mabeli

(3) Kakaretso ea likarolo (SMD + DIP)

(4) Boholo ba sephutheloana sa likarolo 1206 0804 0603 0402 020101005

(5) Ho paka likarolo (ntho ea mantlha e tlang pele) Lebanta la terene ea toloki kapa ho khaola mokotla o hlephileng o se nang lebanta

(6) SMT SMT ka lesoba jarolla ka ho iketsa ka lesoba Sliding mola tsokoang tsokoang ba bonoa Optical Optical (AOI); br> X – ray khetha solder pukwanana solder kopano

(7) Palo le boholo ba methaka

“Boloka Panelize e tenyetsehe ho fihlela litlhoko tsa moetsi oa hau.”

U hloka ho netefatsa hore phanele ea ntlafatso e ntlafalitsoe bakeng sa litlhoko tsa baetsi ba PCBA.

(8) Litlhoko tsa litokisetso tse khethehileng (ke hore, bolelele ba lead, bonyane / bophahamo bo phahameng, sebaka)

(9) Kakaretso ea litšenyehelo tsa Bill e feletseng ea Lisebelisoa (BOM)

(10) Palo ea likarolo tse se nang letho tsa board (PCB) le lisebelisoa tse sebelisitsoeng

Tenyetsehang dikarolo PCB theko ho feta mapolanka tenyetseheng PCB

(11) Litlhoko tsa ho roala (bongaka kapa sesole hangata li hloka ho roala ka botlalo kapa ho roala)

(12) Litlhoko tsa ho bopa (haeba li teng)

(13) Litlhoko tsa ho latela melao ea Kopano RoHS (e sa etelleng pele) E seng ROHS (e etelletsoeng pele) IPC-A-610D Class I, CLASS II kapa Class III ITAR

(14) Litlhoko tsa liteko (RayMing e ka khetha ho leka liboto tsohle tsa PCBA pele li ka romelloa, re ka rata hore o re bolelle hore na re ka etsa liteko joang) Teko ea phepelo ea motlakase e sebetsang (ICT) Ha ho na teko (tlhahlobo ea pono feela)

(15) Litlhoko tsa lipalangoang tse tloaelehileng tsa ESD (electrostatic discharge) mekotla e sa tloaelehang / lijana tse ikhethileng

(16) Tlhahiso (RayMing e fana ka ts’ebeletso ea kopano ea PCB e potlakileng)

Tsamaiso e tloaelehileng, ha ho kopo e potlakileng Phetoho e potlakileng (litšenyehelo tsa basebetsi le thepa li amehile)

Malebela ana a 16 a tla ama theko ea kopano ea PCB, ka hona o ka khetha e ntle ho boloka litšenyehelo, ha o reka likarolo, o ka fana ka mohloli oa likarolo tse ngata bakeng sa karolo ka ‘ngoe, ho bonolo ho laola litšenyehelo tse ling, eseng feela ho tsoa ho digikey, baemeli ba bang le bona ba na le ts’ehetso e matla ea theko, ka potlako ho fokotsa litšenyehelo

Theha mokhoa oa ho fumana lisebelisoa tse theko e tlase lipakeng tsa boenjiniere ba moralo le mafapha a theko. Sena se bonolo ho se bua ho feta ho se etsa. Lintho tse tlang pele tse loantšanang lipakeng tsa boenjineri ba moralo le phumants’o ea thepa li ka sitisa ts’ebetso ena.

Tharollo e ‘ngoe ke ho theha likomiti tsa phokotso ea litšenyehelo. Tsamaiso e sebetsa le phumants’o le boenjiniere ho khetholla menyetla ea ho fokotsa litšenyehelo tsa boleng bo holimo. Li boetse li sebetsa ho khetholla likarolo tsa leano tse hlokang mehloli e mengata ho netefatsa tlhahiso e tsoelang pele.