Yuav Ua Li Cas Thiaj Li Muab 2-Sided Printed Circuit Boards: 8 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:31

Feem ntau, thaum ua cov kab hluav taws xob, nws tuaj yeem yog qhov zoo los tso koj txoj haujlwm tiav rau ntawm daim ntawv luam tawm Circuit Board (PCB). Ua cov laug cam ib leeg yog qhov yooj yim txaus, tab sis qee zaum cov kab hluav taws xob tau hnyav dhau lossis nyuaj rau txhua qhov kab kom haum rau ntawm ib sab. Sau cov laug cam ob tog. Lawv ua tau yooj yim dua los ua ntau dua li ib tus xav, yog tias koj tsis maj nrawm los ntawm tus txheej txheem. Hauv cov lus qhia no, kuv yuav qhia koj yuav ua li cas thiaj ua ob tog PCBs tau yooj yim, thiab sai me ntsis.

Kauj ruam 1: Cov ntaub ntawv

Yam koj yuav xav tau: Sawb ntawm 2-tog tooj liab-clad board. Qhov loj ntawm qhov no yuav nyob ntawm qhov loj ntawm koj qhov teeb tsa. Koj tsis xav tau dab tsi zoo nkauj. Tsuas yog tau txais daim ntawv ci ci yooj yim daim kab xev. Scotch daim kab xev ua haujlwm zoo. Kuv siv tus pas txhuam hniav daim txhuam cev (muaj pheej yig hauv khw muag khoom kos duab), tab sis txhua hom daim txhuam cev yuav ua haujlwm. Muaj nyob ntawm Xov Tooj Cua Shacks. Iron. Lub Teeb Box. Yeem, tab sis pab tau heev. Yog tias koj tsis muaj ib qho, koj tuaj yeem ua ib qho yooj yim, lossis siv lub qhov rai nyob rau hnub tshav ntuj. Koj yeej tsis xav siv tes tuav.#60 Laum Bit. Saw. Acetone. Qhov no yuav yaj cov tshuaj toner sai. Scotch Brite Pad. Yuav ntau ntawm cov no. Lawv looj hnab looj tes. Koj yeej tsis xav kom tau ferric chloride ntawm koj cov tawv nqaij. Xav tau kuv hais ntxiv?

Kauj Ruam 2: Luam Koj Lub Rooj Tswjhwm Saib

Kuv yuav tsis qhia koj yuav ua li cas thiaj tsim tau ib lub rooj tsavxwm. Yog tias koj xav kawm, SparkFun muaj kev qhia zoo. Cov tshuab luam ntawv feem ntau muaj teeb tsa rau qhov ceev ntawm lub toner. Tig qhov ntawd tag nrho, thiab luam koj cov laug cam. Txheeb xyuas kom ntseeg tau tias lawv luam tawm raug, txhua yam tsom iav raug, thiab lwm yam.

Kauj Ruam 3: Txiav thiab Sau Npe Pawg Txheej Txheem

Txiav tawm koj ob txheej. Tawm yam tsawg 1/4 nyob ib ncig ntawm lub rooj tsavxwm ntawm peb sab. Tawm mus rau lwm sab ntev dua yog qhov zoo. Tam sim no, tig lub thawv teeb. Muab cov hauv qab txheej tig rau, thiab txheej sab saud tig mus. Kab lawv kom txhua Cov ntaub qhwv tau ua kom zoo ib yam. Tom qab ntawd kaw kab xev ib ncig ntawm ntug thiab kos lub npov qhia txog lub rooj tsav xwm qhov loj me. Siv ob daim ntawv tawm ntawm lub thawv teeb, thiab kaw lawv mus rau ib daim txiag tooj liab. yuav tsum tho qhov tsawg kawg peb lub qhov nyob rau hauv cov qauv asymmetric nyob ib puag ncig ntawm lub npov. Lub qhov yuav tsum hla cov ntawv thiab pawg thawj coj saib.

Kauj Ruam 4: Hloov Toner

Nws yog lub sijhawm hloov cov duab tawm ntawm daim ntawv, thiab mus rau ntawm lub rooj tsavxwm. Qhov no xav tau lub rooj tsav xwm huv. Raws li koj tuaj yeem pom, kuv tau zoo oxidized. Siv daim txhuam cev txhuam hniav txhuam los txhuam nws kom huv. Tsis txhob siv cov ntaub plaub hlau. Nws yuav ua rau muaj kev puas tsuaj rau ntawm koj lub rooj tsavxwm. Thaum nws zoo thiab ci iab, yaug nws tawm thiab npog nrog daim ntaub huv. Tsis txhob kov nws. cov roj los ntawm koj cov tawv nqaij yuav cuam tshuam nrog kev hloov pauv. Cia nws qhuav kom tas. Txhua sab ntawm lub rooj tsavxwm uas muaj qhov uas haum rau ntawm koj lub rooj tsav tooj liab. Kab nws kom tag nrho cov qhov sib dhos. Lub rooj teeb yog pab tau thaum ua qhov no. Thaum ua ke, kaw ob sab kom nws tsis txav mus. Ua kom sov cov hlau. Muab nws tso rau qhov chaw kub tshaj plaws. Tom qab ntawd hlau hla daim ntawv, thawb nyuaj. Koj yuav tsum thawb nyuaj heev. Ua qhov no hauv 30 thib ob tawg rau tsib rau rau feeb. Thaum koj ua tiav cov hlau, khiav lub rooj tsavxwm hauv dej txias kom txog thaum nws txias. ces tev daim ntawv. Rub nws nrog koj cov neeg nrhiav kom txog thaum tsis muaj ntawv sau tseg ntawm lub rooj tsavxwm. Qhov ntawd yuav tsum yooj yim, raws li feem ntau tsis ntau lo.

Kauj ruam 5: Etching

Kuv siv daim txhuam cev txoj kev kos. Nws tsis yog qhov nyuaj tiag tiag, thiab nrawm dua li cov cim tank. Nws kuj tseem muaj txiaj ntsig zoo ntawm kev tso cai rau koj kos ib sab ntawm ib lub sijhawm. Koj yuav xav siv lub dab dej, thiab lub tub. Ua ntej koj ua dab tsi, muab koj lub tsom iav kev nyab xeeb thiab hnab looj tes tso rau hauv koj daim txhuam cev nrog dej. Ces nyem nws tawm. Ua li plaub zaug. Tom qab ntawd, muab koj daim txhuam cev tso rau hauv lub tub, thiab nchuav txog ib diav ntawm ferric chloride rau hauv. Pib so lub rooj tsavxwm nrog daim txhuam cev. Tsis txhob txhuam, tsuas yog so. Cov tooj liab yuav tsum pib ploj sai sai. Mus txuas ntxiv kom txog thaum koj tau kos ib qho txaus siab ntawm koj pawg thawj coj. Tom qab ntawd yaug lub rooj tsavxwm hauv qab dej kom txog thaum tag nrho cov ferric chloride ploj mus. Ntxuav daim txhuam cev, xyuas kom siv dej ntau. Xws li qhov me me ntawm ferric chloride diluted nrog dej ntau heev yog qhov zoo los tso koj cov dej ntws. Tshem koj lub hnab looj tes, lossis ntxuav lawv thiab siv lawv yog tias koj nyiam.

Kauj Ruam 6: Rov Ua Dua

Rov ua cov kauj ruam 4 thiab 5 dua ua lwm sab ntawm pawg thawj coj. Nws yog rau etching. Tam sim no txhua yam uas tseem tshuav yog txhawm rau txhawm rau lub rooj tsavxwm, txiav nws tawm, thiab tshem tawm cov toner.

Kauj ruam 7: Drilling

Qhov no yog qhov yooj yim tshaj plaws. Muab tus #60 ntsis rau hauv chuck ntawm koj cov xovxwm xov, thiab xyuas kom tseeb tias nws yog nyob hauv nruab nrab. Tom qab ntawd laum. Nco ntsoov tias koj mus qeeb qeeb kom koj tsis txhob tawm cov ntaub qhwv hauv qab. Nws kuj yog ib lub tswv yim zoo kom muaj ib daim ntoo du nyob hauv qab los laum rau hauv. Kuv siv ib daim ntawm 1 1/2 MDF.

Kauj ruam 8: Ua tiav

Txhua yam uas tseem tshuav yog txiav lub rooj tsavxwm, xuab zeb ntug, thiab tshem cov toner. Kev txiav yog ib qho yooj yim, tsuas yog ceev faj, looj tsom iav kev nyab xeeb, thiab tsis txhob txiav cov kab los yog ntaub qhwv. Qhov ntug kom du lawv. 120 cov ntawv xuab zeb ua haujlwm tau zoo. Siv qee cov acetone, thiab so hauv lub rooj tsavxwm. Toner yuav tsum tsis muaj ntxiv lawm thiab qhov ntawd yog nws! Koj ua tiav lawm! Nov yog kuv thawj qhov kev qhia, yog li thov koj xav qhia kuv qhov koj xav.