Ob Sab PCB Siv Toner Method: 4 Cov Kauj Ruam (nrog Duab)

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

Qhov no piav qhia txog txoj hauv kev yooj yim kom ua haujlwm zoo saib ob tog ob tog luam tawm cov laug cam nyob hauv tsev.

Kauj ruam 1: Npaj

Cov lus qhia no xav tias koj paub tsim cov ntaub ntawv txheej txheem siv Eagle PCB lossis cov phiaj xwm zoo sib xws. Kuv siv cov txheej txheem hloov pauv toner los ua PCB's (luam tawm cov laug cam) zoo ib yam li lwm tus. Lub tswv yim yooj yim yog siv daim ntawv ci, luam tawm PCB tsim ntawm daim ntawv siv lub tshuab luam ntawv laser, thiab siv cov hlau kub los hloov lub toner rau tooj liab. Kuv siv cov ntawv ci uas lawv muaj tom qab lub txee ntawm Kinko's. Mus rau Kinko's thiab nug qee nplooj ntawv ntawm lawv cov ntawv ci ci, uas yog qhov pheej yig tiag tiag (kwv yees li 5 xees ib daim ntawv). Qee tus neeg tawm tswv yim siv cov ntawv ci uas muaj duab zoo nkauj, tab sis kuv xav tias qhov no yog pov tseg thiab cov ntawv ci ci ci pheej yig tuaj tawm yooj yim dua.

Xijpeem, ib zaug koj muaj koj tus qauv tsim thiab ntawv, koj yuav tsum tau luam qhov tsim. Qhov tseem ceeb ntawm no yog tsom iav txheej saum toj kawg nkaus kom nws yuav tawm los raug thaum xa mus rau lub rooj tsav tooj liab. Nws kuj tseem tuaj yeem pab suav nrog cov cim sib dhos (cov duab T zoo li hauv daim duab) dhau ntawm koj li PCB kom pab koj ua ob txheej. Saib hauv qab no.

Kauj ruam 2: Teem Txheej

Cov kauj ruam tom ntej yog txiav tawm txheej txheej saum toj kawg nkaus thiab hauv qab txheej, thiab tso lub voj me me ntawm kab xev scotch rau ntawm ib ces kaum ntawm txheej txheej sab saum toj kom tso cai rau koj kaw kab xev rau sab saum toj thiab hauv qab txheej ua ke thaum lawv sib koom ua ke. Koj xav txiav daim sab saum toj me dua hauv qab kom koj tuaj yeem lo sab saum toj mus rau hauv qab. Tawm qee chav nyob ib puag ncig ntawm ntug kev tsim kom tsis pom tooj liab. Saib daim duab.

Tam sim no, nqa ob daim ntawv nrog rau txheej saum thiab hauv qab luam tawm ntawm lawv thiab mus rau lub qhov rais lossis lub qhov rooj. Nws yuav tsum yog nruab hnub txij li koj yuav siv lub teeb pom kev zoo los sab nrauv kom pom los ntawm daim ntawv. Muab cov txheej hauv qab tso rau ntawm iav, thiab tom qab ntawd saib xyuas kom tsis txhob lo rau saum daim tseem tsis tau, kho ob daim ntawv uas siv cov cim sib dhos, koj qhov vias, yam ntxwv lossis lwm txoj hauv kev. Thaum sib dhos, lo sab saum toj rau hauv qab. Ua tib zoo nqa lwm lub ces kaum ntawm daim thooj rau sab saum toj thiab ntxiv lwm daim kab xev kom cov txheej sib dhos. Qhov tseem ceeb yog kom ntseeg tau tias daim kab xev yuav tsis cuam tshuam nrog daim ntawv tooj liab tau muab tso nruab nrab ntawm cov ntawv. Saib daim duab.

Kauj ruam 3: Iron It On

Nrog ob daim ntawv los ua ke, tig koj lub hlau mus rau qhov chaw siab tshaj. Kuj xyuas kom tsis muaj dej nyob hauv nws yog tias koj muaj lub zog ua hom hlau. Tam sim no, nqa koj daim ntawv tooj liab tooj liab thiab xaub nws ua tib zoo nruab nrab ntawm ob nplooj ntawv. Saib daim duab hauv qab no. Muab txoj hlua tooj liab tso rau raws li xav tau, thiab thaum cov hlau kub, muab cov hlau tso rau ntawm daim ntawv thiab nias nyuaj. Nws yuav siv qee qhov kev coj ua kom tau txais qhov dai ntawm cov hlau rau ntawm lub tshuab luam ntawv, tab sis tsuas yog nias nyuaj thiab quab yuam cov hlau hla tag nrho lub rooj tsavxwm thaum saib xyuas kom tsis txhob txav cov ntawv txheeb ze rau lub rooj tsavxwm. Thaum ib sab tau ironed rau koj txaus siab, tom qab ntawd ua tib zoo ntxeev tag nrho cov khoom thiab hlau txheej hauv qab. Ib yam uas yuav tsum nco ntsoov yog ntxuav lub rooj tsavxwm kom zoo nrog lub pob paj rwb lossis cov thom khwm qub ntub hauv isopropanol (rub cawv) ua ntej yuav hlau kom tshem tawm cov ntiv tes lossis roj.

Thaum koj ua tiav cov ntawv hlau, txiav daim ntawv ib ncig ntawm lub rooj tsavxwm yog tias xav tau, thiab xa daim ntawv thiab ntawv rau hauv lub taub ntim dej kom tsau daim ntawv. Cia qhov tsau li 10 feeb. Nrog cov ntawv ci ci ci pheej yig los ntawm Kinko lub sijhawm luv dua li cov ntawv inkjet duab zoo. Thaum daim ntawv ntub lawm, tev daim ntawv tawm ntawm ob sab. Qhov no yuav tsum tawm lub toner thiab txheej tuab ntawm daim ntawv nrog rau cov khoom ci ci ntawm lub rooj tsav tooj liab. Siv koj tus ntiv tes xoo lossis tus txhuam hniav qub, ua tib zoo txhuam tawm cov ntawv ntxiv thiab cov ntawv tsis huv ntawm lub rooj tsavxwm. Saib daim duab, hauv qab no qhia lub rooj tsavxwm nrog ib nrab ntawm cov pulp rub tawm. Thaum cov ntawv pulp rub tawm, ua tib zoo tshuaj xyuas cov cim thiab cov yam ntxwv ntawm lub rooj tsavxwm rau qhov tsis zoo me me thiab cov khoom uas yuav ua teeb meem tom qab. Cov cheeb tsam tseem ceeb yuav tau them sai sai rau qhov sib nrug zoo ib yam thiab cov ntaub qhwv qhov twg nws yooj yim rau ntawv lossis ci ci los ua choj thiab khaws tooj liab los ntawm kev kos. Tsis tas li, koj tuaj yeem ua tiav cov ntaub qhwv zoo heev rau kev ua TSSOP, QFP, thiab lwm cov pob ntim zoo siv cov txheej txheem toner yog tias koj ua tib zoo khawb ntawm cov pawm siv Xacto riam lossis zoo sib xws ua ntej yuav kos. Thaum lub sij hawm ironing, lub toner zoo li smear me ntsis, yog li cov nplais zoo heev zoo li yuav sib xyaw ua ke. Siv rab riam, koj tuaj yeem khawb nruab nrab ntawm cov pawm lossis cov cim kom paub tseeb tias tooj liab yuav kos nruab nrab ntawm. Yog tias koj ceev faj, tsis muaj laj thawj uas koj tsis tuaj yeem tau txais 800 micron lossis txawm tias 500 micron suab paj nruag.

Kauj Ruam 4: Ntxuav thiab Ntxuav

Thaum koj txaus siab tias cov yam ntxwv tseem ceeb me me tau npaj txhij, tom qab ntawd muab koj lub rooj tsav khoom tso rau hauv lub thawv yas lossis iav thiab nchuav txaus PCB etchant hla nws kom npog nws. Kuv siv Ferric Chloride etchant muag ntawm Xov Tooj Cua. Maj mam tig lub tais nrog lub rooj tsavxwm thiab ua kom zoo kom txog thaum nws ua tiav. Ceev faj tsis txhob nchuav rau ib yam dab tsi hlau thiab chromed txij li cov etchant yuav cuam tshuam qhov ua tiav nrog nrawm. Feem ntau, qhov twg hauv qab txheej muaj ob peb kab me me thiab lub dav hlau hauv av, nws tsis yog qhov yuav tsum tau tig lub PCB thaum lub cim. Tsuas yog ua kom ntseeg tau tias lub rooj tsavxwm txav mus los ntawm lub khob kom lub hauv qab etches ib yam nkaus. Yog tias koj muaj cov ncauj lus ntxaws ntxaws ntawm sab nraub qaum, koj tuaj yeem xav nqa lub rooj tsav xwm ntau zaus thaum kos nrog lub yas yas txhawm rau txhawm rau txhawm rau txhawm rau tom qab yam tsis khawb nws. Saib daim duab.

Thaum lub rooj tsavxwm ua tiav daim ntawv, koj yuav tsum tau tshem lub rooj tsavxwm tawm thiab yaug nws nrog dej ntau. Muab pov tseg cov tshuaj uas tau siv hauv koj chav dej thiab yaug nws raws li tau pom zoo los ntawm cov khw hauv lub raj mis. Raws li koj tuaj yeem pom los ntawm daim duab, koj yuav tsum muaj peev xwm tuav lub rooj tsavxwm kom pom kev thiab pom los ntawm lub rooj tsavxwm ntawm lub sijhawm no txhawm rau txheeb xyuas qhov ua kom sib haum ntawm txheej txheej saum toj thiab hauv qab. Kev ntxuav tawm lub toner yog qhov mob hauv qab. Txoj hauv kev yooj yim tshaj plaws yog siv cov tshuaj hnyav xws li nres lub tshuab nqus tsev lossis acetone (tshem tawm cov ntsia hlau) thiab cov khaub ncaws los so lub toner tawm. Siv koj txoj hauv kev nyiam, txhuam lub toner tawm ntawm tooj liab thiab tawm koj lub multimeter los ntsuas yog tias ib qho ntawm cov kab me me ua ke. Kuv pom tias cov kab sib dhos ntev ntev feem ntau muaj luv luv ntawm lawv yog tias koj tsis tau txais txhua daim ntawv tawm ua ntej yuav kos. Txhuam txhuam hniav pab. Yog tias koj pom tias qee qhov cim tseg lossis cov ntaub qhwv tau luv, tom qab ntawd siv rab riam Xacto lossis zoo sib xws, khawb lossis txiav tooj liab kom txog thaum lub Circuit qhib. Thaum txhua qhov kev sib tham tau txheeb xyuas qhov no, koj tuaj yeem pib siv cov khoom seem. Kuv pom tias tso cov khoom sib dhos zoo ua ntej yog qhov tseem ceeb, yog li koj tuaj yeem txheeb xyuas txhua lub ncoo thaum koj mus. Txij li cov toner smooshes cov ntaub ntawm QFPs thiab TSSOPs thiab zoo li ua ke, nws yog ib qho yooj yim los tsim tus choj txuas ntawm tus pin. Siv koj lub sijhawm thiab muab koj cov khoom siv hluav taws xob tso rau. Zoo siab tsev!