PCB Layout Dhizaini Mafungiro

Kuti ufambise kugadzirwa, PCB kusona kazhinji inoda kugadzira Mark point, V-slot, process edge.

I. Chimiro chepureti yechiperengo

1. Iyo yekunze furemu yePCB splicing board (clamping edge) inofanirwa kuvharwa-loop dhizaini kuti ive nechokwadi chekuti PCB splicing board haizoremara mushure mekunge yagadziriswa pachigadziko.

2. PCB splice width ≤ 260mm (SIEMENS line) kana ≤ 300mm (FUJI line);kana otomatiki kugovera kuchidikanwa, PCB splice hupamhi x kureba ≤ 125 mm x 180 mm.

3. PCB splicing board shape sepedyo nechikwere sezvinobvira, inokurudzirwa 2 × 2, 3 × 3, …… splicing board;asi usaperetera muyin uye yang board.

II.V-slot

1. mushure mekuvhura V-slot, iyo yakasara ukobvu X inofanira kuva (1/4 ~ 1/3) bhodhi ukobvu L, asi iyo shoma ukobvu X inofanira kuva ≥ 0.4mm.Muganho wepamusoro webhodhi rinorema rinotakura rinogona kutorwa, iyo yakaderera muganhu weiyo yakareruka inotakura bhodhi.

2. V-slot kumativi ose maviri epamusoro uye ezasi notches yekukanganisa S inofanira kunge isingasviki 0.1mm;Nekuda kwehushoma hunobudirira ukobvu hwezvirambidzo, ukobvu hweisingasviki 1.2mm bhodhi, haifanirwe kushandisa V-slot spell board nzira.

III.Maka pfungwa

1. Seta nzvimbo yekumisikidza, kazhinji munzvimbo yekumisikidza yakatenderedza yekusiya 1.5 mm yakakura pane yayo isingadzivirirwe solder nzvimbo.

2. Inoshandiswa kubatsira iyo optical Positioning yemuchina wekuisa ine chip mudziyo PCB board diagonal kanenge maviri asymmetric reference points, iyo yese PCB optical positioning ine referensi point inowanzo muPCB yese diagonal inoenderana chinzvimbo;chidimbu chePCB optical positioning ine referensi poindi kazhinji iri muchidimbu chePCB diagonal inoenderana chinzvimbo.

3. yekutungamira spacing ≤ 0.5mm QFP (square flat package) uye bhora spacing ≤ 0.8mm BGA (ball grid array package) zvishandiso, kuitira kuvandudza kuiswa kwechokwadi, zvinodiwa zveIC maviri diagonal set of reference points.

IV.The process edge

1. Iyo yekunze furemu ye patching board uye mukati diki bhodhi, diki bhodhi uye diki bhodhi pakati peiyo yekubatanidza nzvimbo padyo nemudziyo haigone kuve yakakura kana inobuda midziyo, uye zvikamu uye mupendero wePCB board inofanira kusiiwa iine zvinopfuura. 0.5mm yenzvimbo kuti ive nechokwadi chekushanda kwechigadzirwa chekucheka.

V. maburi ekumisa bhodhi

1. yePCB yekumisikidza bhodhi rose uye yekumisikidzwa kweiyo yakanaka-pitch zvishandiso zviratidzo zvebhenji, musimboti, gomo risingasviki 0.65mm QFP rinofanira kuiswa munzvimbo yaro diagonal;PCB subboard positioning benchmark zviratidzo zvinofanirwa kushandiswa zviri zviviri, zvakarongwa padiagonal yezvinhu zvekumisa.

2. Zvikamu zvakakura zvinofanira kusara nemakoramu ekumisa kana maburi ekuisa, achitarisa zvakadai seI / O interfaces, maikorofoni, nzvimbo dzebheteri, microswitches, headphone interfaces, motors, nezvimwewo.

Akanaka PCB dhizaini, mukugadzira dhizaini, kufunga zvinhu zvekugadzira, kufambisa kugadzirisa, kuvandudza hunyanzvi hwekugadzira uye kuderedza mutengo wekugadzira.