Peb Hom Circuit Board System Classification
Jul 21, 2021
Ib lub vaj huam sib luag
Ib leeg-Sided Boards
Raws li peb tau hais ua ntej, PCB ib sab yog hu ua ib sab (Single-sided). Vim hais tias ib leeg-ib tog boards muaj ntau yam kev txwv nruj rau kev tsim ntawm lub voj voog (vim tsuas muaj ib sab xwb, cov xaim tsis tuaj yeem hla * thiab yuav tsum yog ib txoj kev sib cais), yog li ntawd tsuas yog thaum ntxov circuits siv hom board.
Ob chav vaj huam sib luag
Ob-Sided Boards
Hom kab hluav taws xob no muaj cov xaim ntawm ob sab. Txawm li cas los xij, txhawm rau siv cov xov hlau ntawm ob sab, yuav tsum muaj kev sib txuas kom zoo ntawm ob sab. Lub "choj" ntawm cov circuits no yog hu ua via. A via yog ib lub qhov me me ntim lossis coated nrog hlau ntawm PCB, uas tuaj yeem txuas nrog cov xov hlau ntawm ob sab. Vim tias thaj tsam ntawm ob lub vaj huam sib luag yog ob zaug loj dua li ntawm ib lub vaj huam sib luag, thiab vim tias cov xaim tuaj yeem cuam tshuam (nws tuaj yeem raug mob rau sab nraud), nws yog qhov tsim nyog rau kev siv hauv circuits uas nyuaj tshaj li qhov. ib lub vaj huam sib luag.
Multilayer board
[Multilayer board] Rau ntau daim ntawv thov uas yuav tsum tau ua, lub Circuit Court yuav tsum tau teem nyob rau hauv ib tug multi-txheej txheej txheem thiab nias ua ke, thiab los ntawm lub qhov hluav taws xob circuits yog teem nyob rau hauv nruab nrab ntawm cov khaubncaws sab nraud povtseg los txuas cov circuits ntawm txhua txheej.
Sab hauv kab
Plaub-txheej Circuit Court board
Copper foil substrate yog thawj zaug txiav rau hauv qhov loj me uas haum rau kev ua thiab ntau lawm. Ua ntej lub substrate yog laminated, nws yog feem ntau yuav tsum tau roughen lub tooj liab ntawv ci nyob rau saum npoo ntawm lub rooj tsavxwm los ntawm txhuam, microetching, thiab lwm yam., thiab ces muab cov qhuav zaj duab xis photoresist rau nws nrog zoo kub thiab siab. Lub substrate nrog cov zaj duab xis qhuav photoresist raug xa mus rau lub tshuab raug UV kom raug. Lub photoresist yuav undergo polymerization nyob rau hauv lub teeb-hloov cheeb tsam ntawm cov zaj duab xis tom qab irradiated los ntawm ultraviolet lub teeb (lub qhuav zaj duab xis nyob rau hauv lub cheeb tsam no yuav raug cuam tshuam los ntawm tom qab kev loj hlob thiab tooj liab etching kauj ruam. Circuit Court duab ntawm qhov tsis zoo rau cov zaj duab xis qhuav photoresist ntawm lub rooj tsavxwm. Tom qab rhuav tshem cov yeeb yaj kiab tiv thaiv ntawm lub ntsej muag zaj duab xis, thawj zaug siv cov tshuaj sodium carbonate aqueous los tsim thiab tshem tawm qhov chaw tsis muaj teeb meem ntawm qhov chaw zaj duab xis, thiab tom qab ntawd siv cov tshuaj sib xyaw ntawm hydrochloric acid thiab hydrogen peroxide kom corrode thiab tshem tawm cov ntawv ci tooj liab rau tsim ib lub voj voog. Thaum kawg, cov yeeb yaj kiab qhuav photoresist uas tau ua haujlwm zoo yog ntxuav tawm nrog sodium hydroxide aqueous tov. Rau sab hauv Circuit Court boards uas muaj ntau tshaj li rau txheej (nrog rau), ib tug tsis siv neeg positioning xuas nrig ntaus tshuab yog siv los xuas nrig ntaus tawm lub riveting siv qhov rau kev sib raug zoo ntawm interlayer circuits. Multi-Layer Boards
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Tus naj npawb ntawm cov khaubncaws sab nraud povtseg txhais tau hais tias muaj ob peb txheej txheej thaiv kev ywj pheej. Feem ntau tus naj npawb ntawm cov khaubncaws sab nraud povtseg yog sib npaug thiab muaj ob txheej txheej sab nraud. Feem ntau cov motherboards muaj 4 mus rau 8 txheej ntawm cov qauv, tab sis technically nws muaj peev xwm ua tiav ze li ntawm 100 txheej ntawm PCB boards. Feem ntau cov khoos phis tawj loj feem ntau siv cov motherboards ntau txheej, tab sis vim tias cov khoos phis tawj no tuaj yeem hloov tau los ntawm pawg ntawm ntau lub khoos phis tawj zoo tib yam, super-multilayered boards tau maj mam tsis siv. Vim tias cov khaubncaws sab nraud povtseg hauv PCB tau nruj nruj, nws feem ntau tsis yooj yim pom tus lej tiag tiag, tab sis yog tias koj saib ze ntawm lub motherboard, koj tuaj yeem pom nws.
Kev tshawb nrhiav tsis siv neeg thev naus laus zis ntawm circuit boards tau siv nrog kev qhia txog kev siv tshuab saum npoo av, thiab cov ntim ntim ntawm Circuit Board tau nce sai heev. Yog li ntawd, txawm tias tsawg-density thiab nruab nrab-nqi Circuit Court boards, tsis siv neeg nrhiav kom tau ntawm Circuit Court boards tsis yog tsuas yog yooj yim, tab sis kuj economical. Hauv kev soj ntsuam xyuas hauv Circuit Board complex, ob txoj hauv kev yog lub txaj ntawm rab koob xeem txoj kev thiab ob txoj kev sojntsuam los yog ya davhlau sojntsuam txoj kev.