Cov txheej txheem:

Ua Stencils rau Cov Tshuaj Txhuam Hniav Hauv Tsev: 9 Kauj Ruam
Ua Stencils rau Cov Tshuaj Txhuam Hniav Hauv Tsev: 9 Kauj Ruam

Video: Ua Stencils rau Cov Tshuaj Txhuam Hniav Hauv Tsev: 9 Kauj Ruam

Video: Ua Stencils rau Cov Tshuaj Txhuam Hniav Hauv Tsev: 9 Kauj Ruam
Video: Pog txawj tuag ua Dab 1/21/2020 2024, Hlis ntuj nqeg
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Ua Stencils rau Solder Paste hauv Tsev
Ua Stencils rau Solder Paste hauv Tsev
Ua Stencils rau Solder Paste hauv Tsev
Ua Stencils rau Solder Paste hauv Tsev
Ua Stencils rau Solder Paste hauv Tsev
Ua Stencils rau Solder Paste hauv Tsev

Cov cua kub/phaj kub/toaster qhov cub ci nrog cov tshuaj txhuam ua ke feem ntau yooj yim dua li siv lub tshuab xaim hluav taws xob nrog ntau dua ob peb yam khoom SMD. Thiab cov ntawv luam tawm kom raug rau qhov sib npaug ntawm cov kab laug sab yog yooj yim dua li tso txoj kab ntawm cov kab laug sab nrog lub koob txhaj tshuaj - thiab muaj tsawg dua pawg thawj coj saib xyuas ntawm cov choj txuas kom ua thaum muaj kev tswj hwm ntau dua ntawm cov tshuaj txhuam.

Hmoov tsis zoo rau peb ntawm cov neeg uas xav kom khawb ob peb lub rooj sib tham hauv tsev thaum muaj peev xwm los sim tawm cov qauv yooj yim & tsim cov phiaj xwm txhim kho sai, stencils feem ntau raug nqi $ 35 lossis ntau dua thiab siv ob peb hnub kom tau rov qab. Qhov no yog ib txoj hauv kev, siv tib lub cuab yeej zoo li kos cov laug cam, los tsim cov txheej txheem sai proto solder stencils. Qhov zoo yuav tsis nyob ntawm cov hlau tsis muaj hlau lossis mylar uas koj yuav yuav, tab sis koj yuav xav tsis thoob. Nco ntsoov tias tib txoj hauv kev kuj tseem tuaj yeem siv tshuaj sib tsoo lwm qhov kev tsim - cov hniav zoo nkauj rau cov thawv rau hniav nyiaj hniav kub, tsim duab ntxoov ntxoo rau qhov projecting nrog Luxeon, thiab lwm yam - qhov muaj peev xwm tsis muaj qhov kawg. Txoj kev no raws li tshaj tawm yuav tsis tshem tawm kev ua haujlwm tu, thiab kuv paub tseeb tias muaj kev hloov kho rau txoj kev no uas yuav ua rau txhua yam ua haujlwm yooj yim dua/zoo dua. Kuv tos ntsoov rau cov lus pom los ntawm lwm tus txog kev txhim kho txoj hauv kev. Thov txim rau qhov tsis muaj duab nyob rau ntu tom qab; kom tau cov duab ntawm no kuv tau ua nrawm-dhau tab sis tsis tau ua qhov tseeb etch/solder paste daim ntawv thov. Cov duab tsis zoo yog vim raug kaw nrog lub koob yees duab ntawm lub xov tooj ntawm tes.

Kauj ruam 1: Ua ntej Peb Pib

Txoj hauv kev no yog ua raws li qhov kuv ua daim phiaj xwm txheej sib dhos - uas zoo li txawv heev los ntawm qhov koj yuav ua li cas. Kuv tau txheeb xyuas cov laug cam rau ob peb xyoos tam sim no thiab kuv yuav ua li cas nws tau hloov pauv me ntsis dhau lub sijhawm ntawd thaum kuv pom cov cuab yeej tshiab & cov hauv kev. Yuav luag txhua txoj hauv kev ntawm cov laug cam yuav tsum ua haujlwm zoo rau qhov no ib yam; txawm hais tias koj ua hlau, teeb pom kev zoo rau cov laug cam, thiab lwm yam; tsuas yog xav me ntsis thiab koj yuav tsum tuaj yeem hloov kho qhov no kom ua haujlwm nrog koj cov txheej txheem.

Kauj Ruam 2: Kauj Ruam 1: Yam Koj Yuav Tsum Tau

Kauj Ruam 1: Yam Koj Yuav Tsum Tau
Kauj Ruam 1: Yam Koj Yuav Tsum Tau

Kev tsim qauv (qhov no kuv xav tias koj tau teeb tsa koj lub rooj tsavxwm nrog Eagle)

Ib txoj hauv kev hloov pauv uas koj yuav siv rau kev hloov pauv mus rau lub rooj sib tham hauv Circuit Court (Kuv siv Xovxwm-n-Peel Blue) FeCl lossis lwm yam kev tshawb fawb Muaj ntau ntawm daim kab xev scotch Cov ntawv tooj liab nyias (Kuv pom cov tooj liab nyias nyias, hais txog qhov tuab ntawm daim npav lag luam & hais txog 4 ntiv tes hla, 14 ft ntev, ntawm kuv lub khw muag khoom kho vajtse hauv cheeb tsam hauv vaj - pom tau tias nws tau siv los khaws qwj tawm ntawm lub vaj)

Kauj Ruam 3: Tsim Stencil Design Transfer

Tsim qhov Stencil Design Transfer
Tsim qhov Stencil Design Transfer
Tsim qhov Stencil Design Transfer
Tsim qhov Stencil Design Transfer
Tsim qhov Stencil Design Transfer
Tsim qhov Stencil Design Transfer

Tej zaum yuav muaj qhov zoo dua (raug dua) txoj hauv kev ua qhov no nrog dav dawb hau. Kuv ua kuv txheej txheem li qub; hauv CAM ntu Kuv xaiv tsuas yog daim npog qhov ncauj (uas ib txwm muab rau koj thaj chaw uas lub npog ntsej muag yuav tsis npog). Qhov no yog me ntsis xoob tshaj qhov uas cov ntaub qhwv yuav tsum yog; Hmoov tsis zoo "txheej" txheej tsis suav nrog cov ntaub qhwv SMD. Txawm li cas los cov txiaj ntsig tseem zoo li zoo nkauj; ntawm qhov chaw siab, txawm li cas los xij, tseem yuav muaj qee qhov txuas me me & tsim nyog tau txais kev tu kom huv.

Raws li hom ntawv tso tawm, xaiv "PS_INVERTED" - peb xav tau qhov rov qab ntawm daim npog nres. Yog tias lub stencil yog rau saum lub rooj tsavxwm, xaiv "tStop" thiab khij lub npov "iav". Yog tias rau hauv qab, xaiv "bStop" thiab xyuas kom tseeb tias "daim iav" TSIS YOG. (ua siab ncaj, txij li peb tab tom ua txhua txoj hauv kev dhau los, "daim iav" lossis tsis yog qhov teeb meem tiag tiag. Tus so ntawm cov kauj ruam no kuv yuav xav tias koj siv Press-n-Peel Blue raws li koj txoj kev hloov pauv; hloov raws li qhov tsim nyog. Luam tawm tus qauv tsim rau ntawm daim ntawv tsis tu ncua. Saib nws dhau, xyuas kom nws zoo li koj xav tau. Thaum koj txaus siab, txiav ib qho ntawm PnP Blue tsuas yog me dua qhov loj me ntawm daim duab ntawm daim ntawv thiab kaw nws hla daim duab, ci ib sab. Nco ntsoov tias koj tau txais qee qhov chaw nyob ib puag ncig, raws li kev sib koom ntawm cov tshuab luam ntawv laser feem ntau tsis zoo tag nrho thiab cov duab tuaj yeem hloov ob peb hli los ntawm ib qho luam ntawv mus rau lwm qhov. Koj yuav tsum tsuas yog xav tau ib daim kab xev, nyob rau sab PnP xiav mus rau sab saum toj ntawm daim ntawv, yog li nws tau tuav hauv qhov chaw raws li ntawv tau rub los ntawm lub tshuab luam ntawv, tab sis txwv tsis pub PnP xiav yog dawb txav mus rau me me thiab ua kom zoo tiv thaiv lub nruas/fuser hauv lub tshuab luam ntawv. (ceeb toom: Kuv tau siv txoj hauv kev no rau LJ4000 thiab LJ4 yam tsis muaj kev phom sij, tab sis kuv tsis muaj lub luag haujlwm yog tias qhov no noj koj lub tshuab luam ntawv). Muab cov ntawv xa rov qab rau hauv lub tshuab luam ntawv (lossis thauj nws mus rau hauv lub tais ntawv), ua kom ntseeg tau tias koj paub tias lub tshuab luam ntawv yuav luam tawm qhov twg thiab txhua yam yog lawm. Yog tias koj xav tau, sau ib qho "x" rau hauv qab ntawm ib daim ntawv yooj yim thiab luam cov duab dua, ua kom ntseeg tau tias txhua yam tawm los yuav ua li cas koj xav kom nws ua, ua ntej dhau pnp+daim kab xev+ntawv rov qab rau hauv tshuab luam ntawv

Kauj Ruam 4: Npaj Tooj thiab Hloov Duab

Npaj Tooj thiab Hloov Duab
Npaj Tooj thiab Hloov Duab
Npaj Tooj thiab Hloov Duab
Npaj Tooj thiab Hloov Duab
Npaj Tooj thiab Hloov Duab
Npaj Tooj thiab Hloov Duab

Xaiv ib daim tooj liab (tooj dag yuav zoo ib yam, ntxiv rau muab qee qhov nruj dua, txawm tias kuv tsis paub tseeb tias qhov no yuav ua rau qeeb qeeb li cas); nws yuav tsum yog qhov loj me lossis loj dua me me ntawm stencil koj yuav tau ua. Tej zaum koj yuav lossis tsis xav tawm ib qho ntxiv rau ntawm ib sab rau tuav & txav cov stencil tiav ib puag ncig.

Tus so ntawm cov kauj ruam no zoo ib yam li koj tau siv rau kev xa cov qauv tsim mus rau lub rooj tsav xwm hauv Circuit Court. Tsuas yog qhov sib txawv yog qhov hloov pauv mus rau daim phiaj tooj liab, koj hloov mus rau daim tooj liab. Ua tus txheej txheem scotch-brite txhuam ntawm tooj liab (ntub ntub scotch brite ncoo, txhuam kom txog thaum tag nrho thaj chaw uas yuav tau them los ntawm kev hloov pauv yog ci & pom tseeb txhuam-txawm tias tooj liab los txhua yam zoo nkauj thiab ci, txhuam nws txawm li cas los xij nrog cov tooj liab zoo nkauj muaj txheej txheej nyias nyias ntawm qee yam tiv thaiv nws, uas tseem yuav ua rau kev hloov pauv los ntawm kev ua haujlwm zoo). Txij li scotch brite pawm yog kim heev, Kuv ib txwm tsuas yog txiav ib lub duab plaub me me los ntawm tag nrho cov ncoo & siv qhov ntawd, ntau dua li tag nrho cov ncoo txhua lub sijhawm. Cia daim tooj liab qhuav tag. Tshem PnP zaj duab xis xiav los ntawm daim ntawv luam ntawv & rub daim kab xev tawm. Txiav raws li qhov tsim nyog kom tau PnP zaj duab xis kom haum rau ntawm daim tooj liab. Siv daim kab xev scotch los txuas nws, ua kom nws tsis ua npuas hauv nruab nrab. Kuv hais kom kaw qhov tsawg kawg yog ob tog sib hloov kom nws tsis txhob plam ib ncig thaum hloov pauv. Sim ua kom ntseeg tau tias tshuab lossis txhuam cov plua plav uas yuav pom nws txoj hauv kev ntawm zaj duab xis thiab tooj liab. Daim kab xev ua ke ntawm PnP zaj duab xis & tooj liab mus rau sab nraum qab ntawm ib sab ib tog vaj huam sib luag (lossis ib qho uas tsis muaj tooj liab ntawm ob sab). Koj yuav tsis xav muab nws txuas rau sab tooj liab ntawm lub rooj tsavxwm, vim tias tooj liab ntxiv rau ntawm lub rooj tsavxwm yuav rub tawm kom sov thaum ua qhov hloov chaw. dua kom paub tseeb tias nws yog tag nrho tiaj tus. Siv hlau los yog laminator hloov pauv los ua qhov hloov pauv. Siv cov txheej txheem laminator, Kuv pom tias feem ntau kuv yuav tsum hla dhau 6-7 zaug rau kev hloov pauv tau zoo.

Kauj Ruam 5: Npaj rau Etch

Npaj rau Etch
Npaj rau Etch

Piv txwv tias kev tsim qauv hloov pauv zoo & ua tiav (yog tias tsis yog, zoo li lwm yam etch, ua nws kom txog thaum koj tau txais nws txoj cai/ntse tus cwj mem me me ua tsis tau zoo), koj yuav luag npaj txhij rau etch. Txawm li cas los xij koj tau txais tag nrho sab nraub qaum ntawm pawg thawj coj uas yuav tsum tau npog kom cov tooj liab tsis ploj mus.

Kuv siv 2 txheej kab xev scotch; nws yog daim kab xev ntau ntau thiab siv sijhawm li ob peb feeb, tab sis nws ua haujlwm tau zoo kom khaws cov ntawv tom qab, thiab nws muaj peev xwm tshem tawm yam tsis tas ua kom puas cov tooj liab (ntim cov kab xev piv txwv tias tej zaum yuav nyuaj txaus kom tshem tawm koj ' d xaus nrog lub mangled & khoov duav tag. Cov kab xev tsis ua haujlwm zoo li thaum muab nws ua kom sov thiab ua kom sov.) Yog tias koj sab laug ib lub tab los tuav rau ntawm lub stencil, muab kab xev hla qhov no ntawm sab xub ntiag ib yam kom nws los ntawm ploj mus. Nco ntsoov tias kev hloov pauv mus tas li ntawm lub tab & kev hloov pauv (koj tsis xav tau ib txoj kab nyias uas tsis tau pom uas yuav xaus cais koj tus stencil los ntawm lub tab).

Kauj ruam 6: Etch

Etch
Etch

Kuv etch nrog FeCl ua kom sov txog li 90 degrees (Celsius). Txij li cov tooj liab tau tuab me ntsis piv rau tooj liab ntawm cov phiajcim hauv Circuit Court, nws yuav siv sijhawm me ntsis los ua kom tiav & yuav nyuaj me ntsis ntawm koj li kev xav. Txheeb xyuas ib ntus kom pom tias yam khoom mus li cas & txiav txim siab thaum twg daim ntawv ua tiav.

(kho kom raug) nco tseg: Kuv nyuam qhuav nyeem ntawv tias nws tau pom zoo kom tsis txhob hla 55C rau FeCl - raws li koj yuav xaus nrog cov pa taws uas tuaj yeem ua rau lub cev puas tsuaj (thiab tej zaum lwm yam hauv qhov chaw nyob).

Kauj Ruam 7: Ntxuav/tshem daim kab xev

Ntxuav/tshem daim kab xev
Ntxuav/tshem daim kab xev

Ntxuav lub rooj tsavxwm kom zoo, ua kom tshem tawm txhua qhov cim ntawm FeCl. Qee cov neeg pom zoo siv me me ntawm cov tshuaj ammonia diluted ntawm lub rooj tsavxwm kom tshem tawm ib qho me me ntawm FeCl sab laug. Tshem daim kab xev scotch ua tib zoo rov qab (qhov no yuav siv sij hawm me ntsis ntawm kev ua siab ntev). Kuv ntxuav lub hauv ntej nrog acetone lossis txhuam dua nrog scotch brite ncoo (tsis paub meej tias dab tsi cuam tshuam toner number case tau muab pov rau hauv cov tshuaj txhuam tom qab yuav muaj yog tias qhov no tsis ua tiav).

Dab tsi koj tshuav nrog yog ib qho tooj liab nrog cov ntsiab lus ntse txiav rau hauv nws. Daim duab yog daim duab-xov tooj ntawm tes tsis zoo uas tau siv lub stencil kawg uas kuv tau ua. (Nco ntsoov tias TQFP pob nyob hauv nruab nrab tsis muaj kev sib cais ntawm cov koob nyob sib ze; uas yog qhov yuav tsum tau ua, txawm hais tias tsis tas yuav tsum tau pom zoo). Raws li tau hais ua ntej, koj tuaj yeem ua kom zoo nkauj ntau yam tsim; nws tsis tas yuav yog tus stencil … thiab los ntawm qee qhov kev sim yooj yim, tooj dag yuav tsum tau kos nrog FeCl, txawm hais tias yuav qeeb me ntsis.

Kauj Ruam 8: Siv Stencil

Kev siv Stencil
Kev siv Stencil

Txheeb xyuas qhov kev qhia ua kom pom kev siv lub stencil. Note: rau kuv spatula Kuv siv daim txiav los ntawm qhov kuv xav tias tau muag raws li "Japanese putty knife", pom ntawm Asian khw (sf neeg, nws yog ib qho hla ntawm Thrift) Lub nroog hauv txoj haujlwm). Lawv zoo li $.99 rau ib pob ntawm 3. Kuv siv lub tshuab nres me me los txiav ib lub duab plaub me me uas yooj yim los tswj kev ua haujlwm ntawm cov laug cam me me. Koj tseem tsis tas yuav tsum muaj cov glop loj ntawm cov tshuaj txhuam; Kuv tsuas yog hno ib rab koob los ntawm rab koob me me ntawm muab tshuaj txhuam (yuav kuv li los ntawm Chipquik) nrog rab koob tshem tawm, txhuam nws ib puag ncig me ntsis nrog cov spatula kom kis tau nws tawm, thiab tom qab ntawd spatula hla lub qhov, ua kom lawv txhua tus tau ntim.

Kauj Ruam 9: Qhia Rau Kuv Paub Qhov Kev Txhim Kho Koj Tuaj Nrog

Thiab kuv kuj xav paub seb lwm yam khoom zoo li cas tib neeg siv txoj hauv kev no los zom cov tshuaj.

Pom zoo: