Muaj ntau thaj chaw hauvPCB tsimqhov chaw muaj kev nyab xeeb yuav tsum tau txiav txim siab. Ntawm no, nws yog cais ib ntus ua ob pawg: ib qho hluav taws xob cuam tshuam nrog kev nyab xeeb kev nyab xeeb, lwm qhov yog tsis muaj kev teeb meem kev nyab xeeb kev nyab xeeb.
Kev Nyab Xeeb Kev Nyab Xeeb Kev Nyab Xeeb
1.Spacing ntawm cov xov hlau
Raws li cov khoom muaj peev xwm ntawm cov ntsiab lusPcb ManufacturersMuaj kev txhawj xeeb, qhov tsawg kawg nkaus uas yuav tsis tsawg tshaj 4mil. Qhov tsawg kawg nkaus xaim hluav taws xob nrug kuj yog qhov deb ntawm xaim xaim thiab hlau rau hauv ncoo. Los ntawm cov kev pom ntawm kev tsim khoom, qhov loj dua yog tias ua tau, thiab 10mil yog ib qho ib txwm muaj.
2.pad aperture thiab ncoo dav
Nyob rau hauv cov nqe lus ntawm kev ua tau muaj peev xwm ntawm mainstream pcb tsim khoom lag luam, lub aperture ntawm lub ncoo yuav tsum tsis txhob tsawg dua 0.2mm yog tias nws yog ib lub tshuab ua mechanically, thiab 4mil yog tias nws yog laser dreded. Lub apertate kev ua siab yog txawv me ntsis raws li phaj, feem ntau tuaj yeem tswj tau me me raws li 0.05 hli, qhov dav tsawg kawg ntawm cov ncoo yuav tsum tsis pub tsawg tshaj 0.2 hli.
3. Cov ntaub ntawv ntawm ncoo
Raws li qhov ua tau muaj peev xwm ua tau muaj peev xwm ntawm Mainstream PCB cov tuam txhab tsim kev txhawj xeeb, cov ntxig ntawm cov ntaub yuav tsum tsis tsawg tshaj 0.2 hli.
4.Qhov deb ntawm tooj liab thiab phaj phaj
Lub spacing ntawm tus them tus nqi tooj liab thiab ntug ntawmPCB Boardyuav tsum tsis pub tsawg tshaj 0.3mm. Ntawm cov qauv kev tsim-cov cai qhia txog phab ntsa, teeb tsa txoj cai txuas rau cov khoom no.
Yog tias thaj chaw loj ntawm tooj liab yog pw, muaj feem ntau yog ib qho shrinkage nrug ntawm lub phaj thiab ntug, uas feem ntau tau teem rau 20mil. Nyob rau hauv PCB tsim thiab tsim kev lag luam, nyob rau hauv ib txwm muaj tshwm sim rau ntawm lub rooj saib xyuas tooj liab, lossis kom tsis txhob muaj daim tawv tooj liab tau sib luag tau kis tawv nqaij ntawm lub rooj tsavxwm.
Qhov no tooj liab indention yuav muab coj los ua ntau txoj hauv kev, xws li kos duab ib txheej ceev chaw raws tus ntug ntawm tooj liab thiab cov ceev. Ib txoj kev yooj yim tau qhia ntawm no, uas yog, kev nyab xeeb kev nyab xeeb yog teem rau cov tooj liab nteg khoom. Piv txwv li, kev nyab xeeb deb ntawm tag nrho cov rooj tsav xwm yog teem rau 10mil, thiab tooj liab sab hauv ntawm lub rooj tsavxwm thiab tshem tawm cov khoom plig tuag hauv lub cuab yeej.
Tsis-Phom Nrog Kev Nyab Xeeb Kev Nyab Xeeb
1. Tus cwj pwm dav, qhov siab thiab qhov sib tw
Tsis muaj kev hloov pauv tuaj yeem ua rau kev ua cov ntawv ua yeeb yaj kiab, tab sis qhov dav ntawm cov cim hauv qab 0.22mm, uas yog, qhov dav ntawm cov kab ntawm cov cim L = 0.22mm (8.66mil).
Qhov dav ntawm tag nrho cov cim yog w = 1.0mm, qhov siab ntawm tag nrho tus cwj pwm yog h = 1.2 hli, thiab cov kab ke ntawm cov cim yog d = 0.2 hli. Thaum cov ntawv nyeem tsawg dua li cov qauv saum toj no, kev luam ntawv yuav raug rau qhov muag plooj.
2.Spacing ntawm vias vias
Lub qhov muag los ntawm-qhov (ntawm) mus txog ntawm-lub spacing (ntug rau ntug) yuav tsum nyiam tshaj 8mil
3.Distance los ntawm tshuaj ntsuam luam ntawv rau ncoo
Tus tshuaj ntsuam luam ntawv tsis pub npog npog hauv ncoo. Vim tias yog tshuaj ntsuam luam ntawv tau them nrog cov phuam qhwv taub, lub vijtsam vijtsam hlau yuav tsis nyob ntawm lub tin thaum lub hau yog, uas yuav cuam tshuam rau cov mounting. Cov tuam txhab tuam txhab dav dav yuav tsum tau hais tias 8mil plast tau tshwj tseg thiab. Yog tias tus PCB pawg thawj tswj hwm tau txwv nyob rau thaj tsam, 4mil txuas yog NW nyuam qhuav siv tau. Yog tias lub vijtsam tshuaj ntsuam yog kev sib tsoo ntawm lub ncoo thaum lub thawv ntim, lub thawv ntim ntawv yuav cia li luam tawm ntawm lub vijtsam thaum ua kom paub tseeb tias cov ntaub qhwv.
Ntawm chav kawm, nws yog ib rooj plaub-rooj plaub hauv kev tsim lub sijhawm. Qee zaum qhov screen luam tawm yog txhob txwm ua kom muaj kev sib txuas nrog kev sib txuas nrog kev sib txuas nrog cov solder sib txuas thaum vuam muag, uas yog lwm kis.
4.Manhanical 3D Qhov siab thiab kab rov tav
Thaum txhim kho cov cheebtsam ntawmPcb, nws yog qhov tsim nyog los txiav txim siab seb cov kab rov tav thiab qhov chaw qhov siab yuav tsis sib haum nrog lwm cov neeg kho tshuab. Yog li ntawd, hauv kev tsim, peb yuav tsum xav txog qhov sib xws ntawm cov khoom sib xyaw ua ke, nruab nrab ntawm cov khoom lag luam pcb, thiab muaj cov khoom lag luam pcb, thiab muaj kev nyab xeeb kaw rau txhua qhov chaw muaj teeb meem hauv qhov chaw.
