P.C. IB @ Tsev - Cov Txheej Txheem: 9 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:27

Cov cuab yeej raug, Ua siab ntev thiab xyaum yog txhua yam koj xav tau…

Kauj Ruam 1: Ua P. C. B. - Ah … Tsis yog Kev Pom Zoo Loj

Kuv ib txwm xav tias ua PCBs hauv tsev yog cov txheej txheem nyuaj thiab siv zog.. tab sis kuv ua tsis raug.. Nws yog qhov yooj yim zoo nkauj ua, muab koj muaj cov cuab yeej raug nrog koj thiab tau kawg PATIENCE !! Ua ntej thaum kuv yog tsuas yog ib qho tshiab hauv cov khoom siv hluav taws xob Kuv tau siv los tsim tag nrho cov Circuit Court ntawm Veroboard lossis perfboard (ib qho nrog cov khoom siv ua tiav thiab cov tooj liab puag ncig txhua qhov). Tom qab ntawd muaj ib hnub kuv xam pom tias kuv tuaj yeem ua kuv tus kheej PCB hauv tsev … yog li vim li cas ho tsis sim nws? Tom qab ntawd kuv tau ua kuv tus kheej PCBs siv cov cwj mem tiv taus, tus kav thiab tooj liab. Kuv siv los kos cov txheej txheem ncaj qha rau ntawm tooj liab clad siv tus cwj mem tab sis kuv ib txwm siv los xoob qee txoj hauv kev ntawm lub rooj tsavxwm hauv txheej txheem ntawm kev kos vim tias tus number case yuav tsis txhawb nqa ntawm lub rooj tsavxwm ntev heev uas tsuas yog siv los rau kuv Thaum kawg kuv kawm paub kos duab ntawm kev ua kom zoo PCBs hauv tsev siv cov khoom zoo thiab cov cuab yeej thiab kuv yuav piav qhia cov txheej txheem niaj hnub no hauv cov lus qhia uas kuv vam tias yuav siv tau rau txhua tus neeg tshiab cov khoom siv hluav taws xob nyiam thiab DIYers !!

Kauj Ruam 2: Nqi Khoom

Nov yog cov npe khoom uas koj yuav xav tau kom ua tau zoo P. C. B

• Ib qho tooj liab zoo zoo (Zoo dua FR4)
• Monochrome laser tshuab luam ntawv
• Software rau kos cov txheej txheem teeb tsa (Kuv siv PCB nthuav qhia, nws dawb thiab txaus siab rau txhua qhov kev xav tau)
• High quality high gloss photo paper
• FeCl3 - Ferric chloride hmoov los yog tej daim thiab dej
• Tes PCB laum lossis Hluav Taws Xob PCB nrog cov khoom me me 0.8 hli, 1 hli thiab 1.2 hli
• Soldering hlau thiab soldering hlau
• Zoo flux zoo
• Ib khub ntawm hnab looj tes phais mob
• Cov ntawv xuab zeb (Grit 400) - zoo heev nyiam.. koj kuj tseem siv tau 800
• Tus txhuam hniav (Feem ntau siv los ntxuav cov tais diav hauv chav ua noj?)
• Ib rab riam ntse/rab riam - txhawm rau tshem tawm thaj tsam ntawm lub qhov drilled
• Hack pom hniav - rau txiav cov tooj liab clad kom tau qhov loj me
• Txiab - rau txiav daim duab ntawv/ntawv xuab zeb
• Hlau - Ib qho siv los nias khaub ncaws
• Phuam qhwv caj dab
• Ntxuav daim ntaub paj rwb

Kauj Ruam 3: Cia Peb Pib !! Teeb duab Layout thiab Printing

• Nqa PCB tsim software uas koj xaiv thiab ua cov txheej txheem txheej txheem ua tib zoo raws li qhov xav tau.
• Thaum cov txheej txheem tiav.. tsuas yog muab nws qhov kev kuaj zaum kawg thiab tom qab ntawd nws tau npaj los luam tawm.
• Siv lub tshuab luam ntawv tshuab luam ntawv tshuab luam ntawv zoo zoo thiab tau kawg yog daim duab zoo nkauj zoo nkauj thiab luam cov qauv ntawm daim duab duab
• Koj tuaj yeem teeb tsa kev nyiam luam ntawv ua ntej luam tawm. Xaiv DARKER qhov kev xaiv yog ua tau.

Kauj Ruam 4: Kev Npaj Tooj Tooj

Ntawm no peb yuav pom yuav ua li cas thiaj ua tooj liab clad npaj rau luam tawm txheej txheej Cov tooj liab clad yuav tsum loj dua qhov loj dua qhov xav tau PCB me me, yog li tsis txhob txiav nws mus rau qhov loj me ua ntej hloov kev teeb tsa rau nws.

• So cov PCB ntawm ib sab tiaj tus tooj liab sab sab.
• Siv 400 lossis 800 Grit xuab zeb daim ntawv, muab ob npaug rau nws thiab pib txhuam nws ntawm cov tooj liab saum npoo los ntawm sab laug mus rau sab xis thiab sab xis mus rau sab laug hauv qhov kev ua haujlwm qeeb qeeb.
• Qhov no yuav tshem tawm txhua qhov tsis huv, hmoov av, stains tawm ntawm txheej tooj liab thiab nws yuav pib muab lub ntsej muag ci ci.
• Tsis txhob siv cov lus tsa suab. Khaws rau sab laug mus rau sab xis lossis nce nqes. Tsis txhob sib xyaw 2 hom kev tawm suab.
• Ua qhov no rau tag nrho lub rooj tsavxwm kom txog thaum nws ci. Ceev faj.. Kev khawb ntau heev/txhuam yuav ua rau txheej tooj liab nyias nyias.. Peb tsis xav ua qhov ntawd.
• Tam sim no ntxuav nws hauv cov xab npum thiab tom qab ntawd los ntawm cov dej huv thiab tom qab ntawd so nrog daim ntaub huv.
• Npog lub rooj tsavxwm no nrog zaj duab xis lo thiab khaws nws ib sab, kom siv tom qab

Kauj ruam 5: Hloov qhov Layout

Tam sim no nws yog lub sijhawm los hloov cov ntawv luam tawm mus rau daim npog tooj liab.

• Nqa cov ntawv luam tawm thiab txiav nws mus rau qhov loj uas siv txiab
• Siv cov tooj liab uas tau npaj tseg, tshem cov zaj duab xis thiab muab nws sab tooj liab tso rau ntawm lub rooj hlau
• Nco ntsoov tso ob npaug ntawm daim phuam da dej Turkish hauv qab daim npog tooj liab (Qhov no saib xyuas ntawm ib qho chaw tsis xwm yeem ntawm lub rooj ironing)
• Tam sim no muab daim ntawv yees duab tso rau ntawm lub rooj tsav tooj liab (Dub luam tawm ib sab) thiab tuav nws hauv txoj haujlwm ntawd.
• Fais fab cov hlau nias thiab teeb lub ntsuas kub me ntsis tsawg dua "COTTON" teeb tsa thiab cia kom sov.
• Thaum nws rhaub kom sov.. tuav daim ntawv yees duab khov kho rau ntawm tooj liab clad thiab tsuas yog nias cov hlau tiv thaiv cov tooj liab clad nyob rau ib ces kaum.. Qhov no tseem ceeb heev. Thaum koj nias nws rau txhua lub ces kaum.. qhov ntawm cov toner dub tau nyam mus rau tooj liab.
• Tam sim no tso daim ntaub ntxuav huv, phuam so qhuav ntawm daim ntawv yees duab thiab pib txhuam daim ntawv yees duab zoo li koj ib txwm ua thaum nias khaub ncaws.
• Khaws lub siab sib npaug thoob plaws hauv cov txheej txheem ntawm ironing. Muab yam tsawg kawg 3 txog 4 puag ncig ntawm kev nias.
• Ntawm qhov kawg xovxwm, tsuas yog qaij cov hlau nyob ib puag ncig 40 degrees raws li qhia hauv daim duab thiab yob nws hla tag nrho PCB saum npoo hauv txoj haujlwm qaij. Qhov no ua kom ntseeg tau tias txhua qhov kev kos duab raug xa mus rau txheej tooj liab kom raug yam tsis muaj qhov yuam kev.
• Tam sim no hloov cov hlau thiab tshem cov phuam qhwv caj dab thiab khaws daim ntawv tooj liab (daig nrog daim ntawv) ib sab hauv qab lub qab nthab kiv cua thiab cia kom txias li ntawm 10 feeb.
• Khaws qhov ntsuas kub los ntawm kov nws.. thaum nws mus txog "Tsuas yog sov" lub xeev.. pib tev tawm daim ntawv yees duab los ntawm ib lub ces kaum thiab maj mam yob nws deb ntawm cov tooj liab.
• Thaum koj tshem daim ntawv yees duab los ntawm nws.. yog tias koj hnov me ntsis NYIAS txhua lub sijhawm koj sim cais tawm.. CONGRATULATIONS !! Koj tau txais nws tam sim no !! tshem daim ntawv maj mam, khov kho tas li.
• Nov yog qhov nyuaj thiab koj yuav tsis ua tiav hauv thawj GO. Tab sis ua siab ntev.. koj yuav txawj kos duab no tsuas yog los ntawm kev coj ua
• Yog tias qhov txheej txheem tev tawm tsis ua haujlwm zoo raws li tau piav qhia saum toj no.. lub ntsiab lus yog tias koj xav tias daim ntawv yees duab tsis tau muab cais tawm yooj yim … TSIS TXHOB yuam kom cais nws. Tsuas yog siv dej txaus (Lukewarm) hauv lub ntim thiab ntxiv ib rab diav ntawm Kev Ntxuav Tes Ntxuav Tes, sib tov nws thiab ua cov tshuaj ntxuav tes thiab ntsaws koj cov tooj liab nrog rau daim ntawv yees duab hauv nws li ntawm 30 feeb.
• Tsuas yog nco ntsoov … Kev ua siab ntev yog tus yuam sij rau kev ua tiav. Tom qab 30 feeb siv txhuam txhuam hniav thiab pib txhuam daim ntawv tawm ntawm lub rooj tsavxwm maj mam muab. Qhov no yuav tshem daim ntawv yees duab kom tiav los ntawm kev koom tes hauv ib puag ncig tsib feeb.
• Thaum tag nrho cov ntawv raug tshem tawm.. ntxuav koj PCB hauv qab cov dej txias txias ib pliag

Kauj Ruam 6: Semi - Tiav PCB

Tam sim no koj muaj dab tsi yog ib nrab PCB tiav hauv koj txhais tes raws li qhia hauv daim duab txuas.

Kauj Ruam 7: Etching… Yay

LOL !! yog … qhov no yog lub sijhawm siv sijhawm tshaj plaws ntawm txhua qhov..

• Npaj TSEV KAWM NTAWV DOLUTION

  Siv dej quart thiab ua kom sov thiab nchuav rau hauv lub khob iav tiaj tiaj Sib tov ib ncig 3 diav puv ntawm Ferric Chloride hmoov hauv dej thiab sib tov nws kom huv

• Tam sim no hnav cov hnab looj tes phais thiab poob PCB hauv cov tshuaj FeCl3 thiab ua kom nws sib zog
• Nqa PCB tawm ib ntus los tshuaj xyuas seb tooj liab ntau npaum li cas.. Nws yuav tsum siv sijhawm li 30 mus rau 40 feeb txhawm rau txhawm rau txhuam PCB. (Loj 7cm x 7cm kwv yees.)
• Thaum tag nrho cov tooj liab tsis xav tau ploj mus… coj PCB thiab ntxuav nws hauv qab cov dej huv

Kauj Ruam 8: Ntxuav PCB

Tam sim no nws yog lub sijhawm los ntxuav lub PCBClean PCB los ntawm kev siv lub tshuab ntxhua khaub ncaws thiab xab npum tov (Txhua yam tshuaj ntxhua khaub ncaws) Txhuam lub PCB nrog lub zog me ntsis kom txog thaum tag nrho cov xim dub tau tshem tawm ntawm cov tooj liab. so nws nrog daim ntaub qhuav

Kauj ruam 9: Ua tiav

• Tam sim no nqa daim ntawv Sand thiab maj mam txhuam nws hla txhua txoj kab tooj liab kom txog thaum koj pom cov tooj liab ci zoo nkauj.
• So nws nrog daim ntaub qhuav
• Hloov ntawm rab phom phom thiab los ntawm lub sijhawm nws ua kom sov.. siv cov tshuaj txhuam kom qhuav thiab siv lub tsho tiv thaiv kom puv PCB siv cov ntaub mos muag. PCB tau npaj rau tinning
• Kov lub qhov taub cua sov ntawm rab phom phom me me xaim xaim (xaim nrog 80/20 piv ntawm Tin/Lead) thiab cia nws yaj hla qhov taub.
• Tam sim no tso lub tiaj tus kav hlau tso rau ntawm txoj kab tooj liab thiab rub cov hlau kab rov tav rau ntawm txoj kab tooj liab. Koj yuav tsum ua qhov no sai li sai tau vim tias yog koj so ntau dua ntawm txhua qhov chaw ntawm txoj kab tooj liab.. koj yuav pom me ntsis solder blob ntawm txoj kev thiab nws yuav tsis muab rau koj kom tiav. Ua kom tiav cov dej num no hauv ntau yam cwj nrag thiab yaj me ntsis ntxiv rau ntawm qhov taub raws li xav tau sib quas ntus.
• Thaum tag nrho cov tacks tooj liab tau npog.. txhuam cov ntawv sab PCB nrog daim ntaub mos mos kom huv si txhawm rau tshem tawm cov dej ntws ntxiv ntawm qhov chaw.
• Tam sim no nws yog lub sijhawm los laum Qhov Siv Tes PCB laum lossis Hluav Taws Xob ib qho.. qhov twg los xij koj muaj hauv koj lub cuab yeej thiab ua kom tiav qhov qhov drilling ib ntawm ib qho.
• Siv cov khoom siv laum raws li daim duab hauv qab no0, 8 mm - Rau IC pads 1.2mm - Rau Diodes, Presets thiab qhov hluav taws xob loj mylar capacitors1.0 mm - Rau txhua lwm yam Cheeb Tsam ZOO TSHAJ PLAWS !!!! PCB Txaus siab rau qhov kev xav ntawm Ua rau saum lub ntiaj teb rau so ntawm lub lim tiam lol !!