Cov txheej txheem:
Video: Yuav Ua Li Cas PCB Hauv Tsev Part 1: 4 Cov Kauj Ruam
2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:27
Niaj hnub no, peb tuaj yeem yooj yim tsim cov ntawv luam tawm zoo, tsis yog txawm tias muaj txuj ci zoo, tab sis kuj muaj txiaj ntsig zoo rau cov haujlwm nyiam. hauv tsev yam tsis muaj cov khoom tshwj xeeb.
PCB yog dab tsi?
Ib daim ntawv luam tawm Circuit Board (PCB) kev txhawb nqa tshuab thiab txuas hluav taws xob txuas nrog cov khoom siv hluav taws xob siv cov khoom siv hluav taws xob, cov ntaub qhwv thiab lwm yam nta ntxiv los ntawm ib lossis ntau daim ntawv txheej ntawm cov ntawv tooj liab laminated mus rau cov txheej txheem tsis siv hluav taws xob. txuas thiab kho tshuab txuas lawv rau nws. Lub rooj tsav xwm luam tawm tau npaj ua ntej ua cov tooj tooj liab ntawm daim ntawv coj ua. Cov kab lus ua ntej tau txiav txim siab txo cov kab thaiv uas ua rau txo qhov ua yuam kev tshwm sim vim tsis muaj kev sib txuas. Ib tus xav tau yooj yim tso cov khoom sib txuas ntawm PCB thiab muab tshuaj txhuam rau lawv. Cov txheej txheem sib txawv los ua PCB Hauv peb kab ntawv, Kuv yuav nthuav qhia 3 txoj hauv kev los ua PCB hauv tsev: Kos ib lub voj voog los ntawm txhais tes Hlau ntawm Glossy ntawv txoj kev Photoresist txoj kev
Kauj Ruam 1: PCB Tsim
Thawj kauj ruam ntawm PCB ua yog tsim lub rooj tsavxwm los ntawm kev hloov pauv cov duab kos rau hauv txheej txheej PCB. Kuv tau siv PCB-droid los tsim lub rooj tsavxwm.
Txog rau ntu no, Kuv tau ua lub teeb ci ntsa iab coj nrog NE555.
Kauj ruam 2: Teeb duab
Tom qab koj ua tiav cov txheej txheem tsim, koj yuav tsum luam tawm daim iav tsom iav thiab txiav ib ncig. Tom qab ntawd, txiav ib lub rooj tsavxwm nrog qhov loj ntawm lub vojvoog ntxiv txog 3-5 hli ntawm ib sab. Tom qab ntawd txhuam cov nplaim nrog qee cov ntawv txhuam thiab ntxuav nws nrog qee cov cawv kom ua rau tsis muaj xeb.
Muab qhov indigo tso rau ntawm tooj liab thiab muab cov ntawv luam tawm rau nws. Kos lub qhov nrog tus ntsia hlau thiab kos duab kos yooj yim los ntawm cov ciav hlau thiab cov ntaub qhwv tom qab ntawv lees paub kab nrog tus cim ruaj khov.
Kauj ruam 3: Etching
Koj yuav tsum tau ceev faj heev thaum ua cov kauj ruam no
Siv lub thawv yas thiab sau nws nrog dej. Muab 2-3 diav diav ntawm ferric chloride rau hauv dej. Dip PCB mus rau Etching solution Fecl3 ua rau tsis hnov tsw tooj liab thiab tshem tawm cov tooj liab uas tsis xav tau los ntawm PCB Txheeb xyuas txhua 4-5 feeb ntau npaum li cas tooj liab nyob hauv pawg thawj coj thaum txheej txheem tiav, tshem nws los ntawm kev daws thiab ntxuav nws. Koj tuaj yeem siv qhov sib xyaw ntawm H2O2 (30%) thiab HCl (10%) rau kev kos rau hauv 1: 5 kev faib.
Tsis txhob kov qhov ncaj ncees ETCHING SOLUTION Siv GLOVES OR FORCEPS
Kauj Ruam 4: Kauj Ruam Kawg
Nrog cawv me ntsis, lossis acetone koj tuaj yeem tshem tawm cov cim ua tiav rov qab cov tooj liab. Tom qab ntawd koj yuav tsum tau txhuam cov tooj liab kom muab nws lub ntsej muag zoo dua thiab rau qhov ua kom zoo dua qub. Tam sim no koj tuaj yeem laum lub qhov thiab txhuam tag nrho cov khoom siv.
Pom zoo:
Siv Kev Cia Siab Lub Hauv Paus txuas ntxiv txhawm rau Nrhiav Lub Tuam Tsev Tsis Ua Haujlwm Txoj Cai Ua Haujlwm Hauv Koj Tsev Neeg Tsob Ntoo ntawm Kev Tshawb Nrhiav Tsev Neeg: 11 Kauj Ruam
Siv Kev Cia Siab Lub Hauv Paus Txuas Ntxiv kom Nrhiav Lub Tuam Tsev Tsis Ua Haujlwm Ua Haujlwm Hauv Koj Tsev Neeg Tsob Ntoo ntawm Kev Tshawb Nrhiav Tsev Neeg: Lub hom phiaj ntawm cov lus qhia no yog los qhia seb yuav tshawb nrhiav koj tsev neeg tsob ntoo li cas hauv Tsev Neeg Nrhiav rau cov poj koob yawm txwv nrog kev ua haujlwm hauv lub tuam tsev tsis tiav siv Kev Cia Siab lub hauv siab txuas ntxiv. Siv Kev Cia Siab Lub Hauv Paus tuaj yeem ua rau koj qhov kev tshawb nrhiav tsis tiav
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Tig Mac Qub Rau Hauv Tsev Cov Ntaub Ntawv Hauv Tsev!: 3 Cov Kauj Ruam
Tig Mac qub rau hauv Cov Ntaub Ntawv Hauv Tsev!: Yog tias koj mob siab rau Mac siv zoo li kuv, yuav muaj, koj yuav muaj Mac qub zaum ib puag ncig ib puag ncig, khaws cov hmoov av. Tsis txhob muab nws tam sim lossis xa nws tawm kom raug tua, rov siv nws los siv ua cov ntaub ntawv hauv tsev! Nrog kev teeb tsa yooj yim, koj yuav yog