-Yakapepetwa naJDB PCB COMPNAY.

PCB mainjiniya anowanzo sangana akasiyana siyana ekuchengetedza mvumo pakuita PCB dhizaini. Kazhinji izvi zvinodikanwa zvepakati zvakakamurwa kuita mapoka maviri, imwe ndeyemagetsi kuchengetedza clearance, uye imwe isiri yemagetsi kuchengetedza clearance. Saka, ndezvipi zvinodikanwa zvepakati pakugadzira PCB wedunhu mabhodhi?

1. Kuchengetedzwa kwemagetsi kureba

1. Kupatsanurana pakati pewaya: nhanho yepakati pemutsara ndeye mutsara-kune-mutsara, uye mutsara-ku-pedhi spacing haifanire kunge iri pasi pe4MIL. Kubva pakugadzira maonero, hongu, iyo yakakura zviri nani kana zvichibvira. Iyo yakajairwa 10MIL yakajairika.

2. Pad aperture uye pad width: Maererano nemugadziri wePCB, kana pad aperture yakadhindwa nemichina, iyo shoma haifaniri kunge iri pasi pe0.2mm; kana laser drilling ikashandiswa, iyo shoma haifanirwe kunge iri pasi pe4mil. Iyo aperture kushivirira kwakasiyana zvishoma zvichienderana nendiro, kazhinji inogona kudzorwa mukati me 0.05mm; hupamhi hwepasi hahufanire kunge huri pasi pe 0.2mm.

3. Nharaunda pakati pedhi uye padhi: Maererano nehuwandu hwekugadzirisa kwePCB mugadziri, chinhambwe hachifaniri kunge chiri pasi pe0.2MM.

4. Nharaunda pakati pepepa remhangura uye bhodhi pamucheto: zvichida kwete pasi pe0.3mm. Kana iri nzvimbo yakakura yemhangura, kazhinji pane chinhambwe chakadzoserwa kubva kumucheto kwebhodhi, kazhinji inoiswa ku20mil.

2. Isiri yemagetsi yakachengeteka kureba

1. Hupamhi, kureba uye kupatsanurwa kwemavara: Mavara ari pasiriki skrini anowanzo shandisa tsika dzakajairwa senge 5/30, 6/36 MIL, zvichingodaro. Nekuti kana chinyorwa chiri chidiki kwazvo, kudhindwa kwacho kunenge kwakadzimwa.

2. Kureba kubva pachidzitiro chesiriki kusvika padhi: sikirini yesilika haibvumirwi kuva padhi. Nekuti kana sirika chidzitiro chakafukidzwa padhi, sirika chidzitiro hachizobatiki tini kana tini, izvo zvichaita kukanganisa chikamu kuiswa. Zvinowanzodikanwa kuchengetedza 8mil spacing. Kana nzvimbo yemamwe mabhodhi ePCB iri padyo, 4MIL spacing inogamuchirwa zvakare. Kana iyo sirika sikirini yakavhara padhi netsaona panguva yekugadzira, chikamu chesiriki chidzitiro chakasiiwa padhi chinozobviswa otomatiki panguva yekugadzira kuti ive nechokwadi chekuti padhi yakanamirwa.

3. 3D kureba uye kuchinjika spacing pane iyo mechanika chimiro: Paunenge uchiisa zvinhu paPCB, funga kana yakachinjika kutungamira uye kureba kwenzvimbo kuchapesana nezvimwe zvimiro zvemakanika. Naizvozvo, kana uchigadzira, zvinodikanwa kuti utarise zvizere kuchinjika kwechimiro chemuchadenga pakati pezvikamu, uye pakati pePCB yakapedzwa negoko rechigadzirwa, uye kuchengetedza chinhambwe chakachengeteka kune chimwe nechimwe chinotarirwa chinhu.

Izvo zviri pamusoro apa ndezvimwe zvezvipo zvepakati zvinoda kuitwa pakugadzira PCB redunhu mabhodhi. Unoziva zvose here?