Litšebeletso tsa Boenjiniere ba Reverse ba PCB ba Mekhahlelo e Mengata

Boenjiniere ba morao ba PCB ba mekhahlelo e mengata ke tsela e sebetsang ea ho khutlisa sepheo sa moralo le ho tsosolosa mokhoa oa ho etsa ha litokomane tsa pele li le sieo, li siiloe ke nako, kapa li se li sa fumanehe. Ho fapana le liboto tse bonolo tsa mekhahlelo e 'meli, meralo ea mekhahlelo e mengata e kenyelletsa mokhoa oa bohlokoa oa ho tsamaisa, kabo ea matla, tšireletso, meaho e laoloang ea impedance, le lifofane tsa litšupiso ka har'a stackup. Seo se bolela hore boenjiniere ba morao bo tlameha ho etsoa ka litšoantšo tse tšepahalang haholo, kaho bocha e laolehileng, le mesebetsi ea netefatso ho netefatsa hore moralo o hahiloeng bocha ha o sebetse feela, empa hape o ka etsoa, ​​​​o ka lekoa, 'me o tsitsitse maemong a lefats'e la nnete.

Bohlaleng ba eona, boenjiniere ba morao ba PCB bo tšehetsa litlhoko tsa khoebo tse molaong tse kang ho boloka lisebelisoa tsa khale, ho theha libaka tsa tokiso bakeng sa thepa e nang le beng ba eona, ho ntlafatsa tlhokomelo, kapa ho nolofalletsa meralo e lumelletsoeng kamora hore likarolo li siuoe ke nako. Leha ho le joalo, boenjiniere ba morao ba PCB e ka sebelisoa habeli. Mofani oa litšebeletso ea nang le boikarabelo o lokela ho hlalosa meeli e hlakileng ea projeke, a hloke tumello e nepahetseng ho tsoa ho mong'a tokelo, le ho kenya tšebetsong litaolo tsa ts'ireletso ea data e le hore bareki ba ka tsoela pele ka kholiseho ntle le ho tšoenyeha ka ho kopitsa kapa ho sebelisa hampe ho sa lokelang.

Ho pholletsa le othomathike ea indasteri, lisebelisoa tsa bongaka, lipalangoang, liteko le tekanyo, litsamaiso tsa matla, le lihlahisoa tsa khoebo tse phelang nako e telele, ho siuoa ke nako ha likarolo le likheo tsa litokomane li tloaelehile. Ha tšehetso ea OEM e fela kapa lifaele tsa kahare li lahleha, boenjiniere ba morao ba boemo ba boto e ka ba mokhoa o mong o theko e tlaase ho feta ho nkela sistimi sebaka ka botlalo. Ka ts'ebetso e nepahetseng, multilayer RE e thusa ho boloka sebopeho, ho lekana, le ts'ebetso, ha e ntse e nolofalletsa lintlafatso tse laoloang joalo ka likarolo tse ling, lintlha tse ntlafalitsoeng tsa liteko, le litokomane tse itokiselitseng tlhahiso.

Boeletsi ba Boenjiniere ba Reverse ba PCB ba Mekhahlelo e Mengata

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1. Hobaneng ha Boenjiniere ba PCB bo Reverse ba Multilayer bo le Bohlokoa

1.1 Lipotoloho tse Telele tsa Bophelo le Likheo tsa Litokomane

Lihlahisoa tse ngata le litsamaiso tsa indasteri li sebetsa lilemo tse fetang 10-30. Ha nako e ntse e ea, lihlopha tsa boenjiniere lia fetoha, lisebelisoa tsa CAD lia fetoha, 'me lifaele tsa pele li ka lahleha, tsa senyeha, kapa tsa bolokoa ka mekhoa e sa fumaneheng habonolo. Ho sa le joalo, lisebelisoa tsa elektroniki li tlameha ho tsoela pele ho sebetsa. Boenjiniere ba morao ba PCB ba mekhahlelo e mengata bo thusa ho aha moralo bocha e le hore boto e ka lokisoa, ea hlahisoa bocha, kapa ea ntlafatsoa ka boikarabello ka lintho tse tšoanang le tsa sejoale-joale.

1.2 Litšenyehelo tsa ho se fumane tšehetso

Ha boto ea bohlokoa ea mekhahlelo e mengata e se e sa tšehetsoe, tšusumetso ea khoebo e ka ba mpe haholo:

• Nako ea tlhahiso e fokotsehile le ho khaoha ha litšebeletso ka lebaka la khaello ea lisebelisoa tse ling
• Litšenyehelo tse eketsehileng tsa tlhokomelo ha litokiso li fetoha liteko le liphoso
• Ho qobelloa ho nkela sistimi sebaka leha sethala se setseng se phetse hantle
• Kotsi e ntseng e eketseha e bakoang ke likarolo tsa maiketsetso kapa tse sa netefatsoang tse tsoang tlas'a khatello

1.3 Ho Siuoa ke Nako ho Fetoha Bothata ba Boemo ba Boto

Ho siuoa ke nako hangata ho iponahatsa boemong ba boto esita le ha karolo e le 'ngoe feela e ameha. ASIC e le 'ngoe e emisitsoeng, sehokelo, module ea motlakase, sesebelisoa se hlophisitsoeng, kapa transformer e khethehileng e ka thibela litokiso le tlhahiso haeba ho lekana ha ts'ebetso ho ke ke ha bolokoa. Maboto a mekhahlelo e mengata a eketsa phephetso hobane lifofane tsa ka hare, meaho ea impedance, le likarolo tsa taolo ea EMI ha li bonahale ntle le tlhahlobo e tsoetseng pele. Lenaneo le matla la RE le shebana le ho boloka sebopeho/ho lekana/ts'ebetso ha ho ntse ho bolokoa meeli ea motlakase le tlhahiso.

1.4 Tlhoko e Tloaelehileng ea Multilayer RE ke Indasteri

1.5 "Katleho" e shebahala joang ho Multilayer RE

Boiteko bo atlehileng ba RE ea mekhahlelo e mengata bo feta "boto e matlafatsang." Ke kahobotjha e laoloang e bolokang sepheo se sebetsang, meeli ea motlakase, le mokhoa oa ho e etsa. Hangata bankakarolo ba batla:

• Ho lekana ha Sebopeho/Ho Lokisa/Tshebetso ho kenyeletsoa lihokelo, ho kenya, le boitšoaro ba sebopeho
• Botšepehi ba Stackup ho kenyeletsoa palo ea lera, boima ba koporo, botenya ba dielectric, le leano la sefofane
• Liphetho tsa kaho tse ka phetoang ho kenyeletsoa le lintlha tsa tlhahiso, lintlha tsa kopano, le liphetoho tse laoloang
• Bopaki ba netefatso ho kenyeletsoa le direkoto tsa tlhahlobo le mekhoa ea ho amohela e sebetsang

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2. Litlhoko tsa Maemo le Boleng bakeng sa Multilayer RE

2.1 Maemo a IPC le Litebello tsa Indasteri

Boenjiniere ba morao ba mekhahlelo e mengata bo lokela ho tsamaellana le maemo a amohelehang a indasteri bakeng sa moralo, tlhahiso le boleng ba kopano. Maemo a atisang ho buuoa a kenyelletsa:

• IPC-6012: mangolo a thuto le tshebetso bakeng sa diboto tse hatisitsweng ka thata (Kgetho ya sehlopha ho latela ditlhoko tsa botshepehi)
• IPC-A-600: kamohelo ea liboto tse hatisitsoeng (litekanyetso tsa kamohelo tse bonahalang le tsa sebopeho)
• IPC-A-610: ho amoheleha ha dikopano tsa elektroniki (maemo a mosebetsi)
• J-STD-001: litlhoko tsa likopano tsa motlakase le tsa elektroniki tse rekisitsoeng

2.2 Lintho Tse Lokelang ho nahanoa ka Lebelo le Matla a Phahameng

Liboto tse ngata tse nang le mekhahlelo e mengata li na le li-interface tse lebelo le phahameng (DDR, SERDES, USB, PCIe, Ethernet) kapa mekhahlelo ea phetoho ea matla a phahameng. RE e tlameha ho boloka sepheo sa motlakase se etsang hore meralo ena e tsitse:

• Impedans e laoloang: jiometri ea mohlala, botenya ba dielectric, le ho tsoela pele ha sefofane sa litšupiso
• Litsela tsa ho khutla: ho roka, ho arohana ka sekhahla, le ka liphetoho tse laolang lerata le EMI
• Botšepehi ba matla: leano la ho arola, ho thibela sefofane, le boits'oaro ba loop ea converter
• Moralo oa mocheso: kabo ea koporo, li-vias tsa mocheso, le meaho e hasanyang mocheso

2.3 Boleng ke Sistimi, Hase Teko e le 'Ngoe

Boleng ba RE e nang le mekhahlelo e mengata bo hlaha ka ho kopanya bopaki ho pholletsa le mosebetsi: ho nka litšoantšo le ho lekanya ho theha 'nete ea motheo, ho hapa moralo o laolehileng, lihlahisoa tse laoloang tsa tlhahiso, le netefatso e shebaneng le mekhoa ea 'nete ea ho hloleha ha boto. Lenaneo la RE le tsamaisoang hantle le fokotsa kotsi ka ho rala netefatso ho potoloha se bohlokoa: khokahano ea ka hare, boitšoaro ba impedance, mosebetsi oa kopano, le meeli ea kamohelo ea ts'ebetso.

3. Meeli ea Molao, IP, le Tšireletso ea Lintlha

3.1 Tumello le Tlhompho ea IP

Boenjiniere ba morao ba PCB ba mekhahlelo e mengata bo lokela ho etsoa feela bakeng sa merero e molaong le ka tumello e nepahetseng ho tsoa ho mong'a thepa ea mantlha le litokelo tse amehang tsa moralo. Bafani ba boikarabello hangata ba hloka litokomane tsa hore moreki ke mong'a thepa kapa o na le tokelo ea konteraka ea ho etsa mosebetsi oa ho lokisa, ho nkela sebaka, kapa ho rala bocha. Sena se sireletsa bareki likhohlanong tsa IP 'me se netefatsa hore projeke e lula e le ka har'a meeli ea boitšoaro le ea molao.

3.2 Tlhokomeliso ea Tšebeliso e 'Meli le Sebaka se Nang le Boikarabello

Hobane boenjiniere bo ka morao bo ka sebelisoa hampe, sebaka se nang le boikarabelo se shebana le tlhokomelo, tokiso, tlhahiso e lumelletsoeng bakeng sa thepa e nang le beng ba eona, kapa meralo e ncha e lumelletsoeng. Merero e ikemiselitseng ho kopitsa lihlahisoa tsa motho oa boraro ntle le tumello, ho feta tšireletso ea ts'ireletso, kapa ho aba lintlha tsa moralo oa beng ba eona e lokela ho haneloa. Ts'ebetso e hlakileng ea ho amohela le tlhaloso e ngotsoeng ea sebaka se thusang bareki ho tsoela pele ka boits'epo.

3.3 Tshireletso ya Dintlha le Mekhoa ya Ketane ya Tlhokomelo

Esita le bakeng sa makgotla a kgwebo, tlhahisoleseding ya tekheniki e ka ba bonolo. Mokgwa wa tshebetso o sireletsang hangata o kenyeletsa:

• Litokomane tsa rasiti: linepe, lintlha tsa maemo, ho serialisa, le li-log tsa phihlello tse laoloang
• Polokelo e sireletsehileng: libaka tse thibetsoeng bakeng sa liboto tsa 'mele le libaka tsa polokelo tse laoloang bakeng sa lifaele tsa moralo
• Litaolo tsa phihlello: litumello tse thehiloeng mesebetsing le ho ngoloa ha tlhahlobo bakeng sa liphetho tsa tekheniki
• Khutlela le ho fana ka thepa: ho khutlisoa ha thepa ea bareki ka litokomane tse ngotsoeng le maano a laoloang a ho boloka thepa

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4. Litšobotsi tsa Kaho ea PCB ea Mekhahlelo e Mengata

4.1 Mesebetsi ea ho bokellana le ho kenya likarolo

Mapolanka a mekhahlelo e mengata a itshetlehile ka mekhahlelo e ka hare ho phetha mesebetsi e itseng: difofane tse tiileng tsa referense bakeng sa ho kgutlisa matshwao, difofane tsa motlakase bakeng sa kabo e tsitsitseng, le dikarolo tse sireletsang ho fokotsa EMI. Boenjiniere ba morao bo tlameha ho aha botjha eseng feela tsela eo di tsamaisiwang ka yona, empa hape le sepheo sa ho bokellana:

• Palo ea mekhahlelo le tatellano: tšusumetso ea ho beha letšoao le sefofane ho impedance le ho bua ka tsela e fapaneng
• Sistimi ea motlakase: Khetho ea prepreg/core e ama tahlehelo, botenya le tlhahiso
• Boima ba koporo: e ama bokgoni ba hona joale, boits'oaro ba mocheso, le impedance ea sefofane

4.2 Li-Vias, Likarolo tsa HDI, le Khokahano e Patiloeng

Meralo ea mekhahlelo e mengata e ka kenyelletsa li-via tse patiloeng, li-via tse foufetseng, li-via-in-pad, li-microvia, le meaho e pakiloeng ka har'a li-stacked through. Likarolo tsena hangata li hlalosa mokhoa oa ho tsamaisa le boleng ba lets'oao. Kaho e nepahetseng e hloka 'mapa o tsamaisoang ke bopaki ba:

• Ka mefuta, boholo ba ho phunya, boholo ba li-pad, le libaka tse thibelang li-pad
• Kgokelo ya ho kopanya dikarolo le tshebediso ya di-backdrill (haeba di le teng)
• Ho beha likhakanyo tsa boleng ba plating tse susumetsang meeli ea ts'epo

4.3 Liaparo, ho kenya lipitsa, le ho matlafatsa mechine

Mapolanka a mangata a sebelisa lipente tse kobehileng, likhomaretsi, li-staking, kapa lipitsa tse sa fellang bakeng sa ts'epo. Tsena li eketsa ho rarahana ho RE hobane li pata matšoao le manonyeletso a solder. Mosebetsi o hlokolosi o sebelisa tlhahlobo e sa senyeheng pele 'me o fetela mehatong e laoloang ea ho tlosa ha feela ho hlokahala le ho lumelloa. Ha ho hlokahala, moralo o hlophisitsoeng oa tlhahlobo o thusa ho netefatsa menahano ea mosebetsi le kaho bocha.

4.4 Likarolo tsa Tšireletso le Likarolo tse Sirelelitsoeng

Meralo e meng ea khoebo le ea indasteri e kenyelletsa mehato e bonahalang ea ho sitisoa, ho kenngoa ha epoxy, likarolo tse sireletsehileng, kapa likarolo tse se nang matšoao. Mananeong a molaong a RE, likarolo tsena li nkoa e le lithibelo tsa moralo ho fapana le litšitiso tse lokelang ho qojoa. Haeba projeke e hloka tšebelisano le likarolo tse sirelelitsoeng, mokhoa o nepahetseng ke ho latela mekhoa e lumelletsoeng ea mong'a eona le ho boloka sebaka se shebane le tokiso le tšehetso tse molaong.

5. Mokhoa oa Boenjiniere ba Reverse oa PCB ea Mekhahlelo e Mengata

Boenjiniere ba morao ba PCB ba mekhahlelo e mengata bo latela ts'ebetso e hlophisitsoeng ea tekheniki: pokello ea bopaki, kaho bocha, tlhahiso ea tlhahiso le netefatso. Phapang ea bohlokoa ho tsoa ho liboto tse bonolo ke hore mekhahlelo ea ka hare le boitšoaro ba motlakase li tlameha ho netefatsoa, ​​​​eseng ho nahanoa.

5.1 Mokhahlelo oa 1: Taolo ea ho Kena le ho Bokella Morero

Pele mosebetsi oa botekgeniki o qala, lenaneo la RE le nang le boikarabello le theha meeli ea projeke le litlhoko tsa ts'ebetso:

• Netefatsa tumello ea moreki le morero oa molao
• Hlalosa lintho tse ka tlisoang le tšebeliso e lumelletsoeng (tokiso e ncha, moralo bocha, netefatso)
• Theha litlhoko tsa letoto la tlhokomelo le ts'ireletso ea lifaele
• Lumellana ka mekhoa ea netefatso le meeli ea kamohelo

5.2 Mokhahlelo oa 2: Tlhahlobo e sa Senyeheng le ho Tšoara Bopaki

Tlhahlobo e sa senyeheng ke motheo oa multilayer RE, haholo-holo ha liboto li sa fumanehe hangata kapa li tlameha ho lula li sebetsa:

• Setšoantšo se nang le qeto e phahameng le metrology e nang le boholo bo fapaneng bakeng sa sebaka, mehato ea maoto le matšoao
• Full Litšoantšo tsa X-ray le CT bakeng sa likarolo tsa kahare, li-vias tse patiloeng, le matšoao a khokahano
• Litekanyo tsa ka hare ho potoloho le tlhaloso ea ts'ebetso tlas'a maemo a laoloang
• Ho nka disampole tsa karolo e tsheletseng ya moedi moo ho dumellehang ho netefatsa ho bokellana le kaho

5.3 Mokhahlelo oa 3: Kaho-bocha ea Sekema, Lethathamo la Marang-rang, le Moralo

Kaho botjha e lokela ho boloka diboloko tse sebetsang, ditlhaloso tsa sebopeho, le sepheo sa motlakase:

• Ho tsosolosoa ha moralo ka ho reha mabitso le ho arola ka mokhoa o ts'oanang
• Ntlafatso ea lethathamo la marang-rang le poelano khahlanong le bopaki ba 'mele
• Papatso ea sebopeho sa PCB ka lithibelo tsa impedance, leano la sefofane, le li-geometri tsa bohlokoa tse bolokiloeng
• Kaho ea BOM ka mehato e netefalitsoeng, mekhoa e meng le lintlha tsa potoloho ea bophelo

5.4 Mokhahlelo oa 4: Lihlahisoa tse Loketseng ho Hlahisa

Ho tšehetsa meaho e ka phetoang, lihlahisoa li tlameha ho ba li loketse ho etsoa le ho kopanngoa, ka lintlha tse laoloang le liphetoho:

• Liphetho tsa Gerber/ODB++, lifaele tsa ho phunya, litafole tsa stackup, le li-coupons tsa impedance (joalokaha ho hlokahala)
• Litšoantšo tsa kopano, lintlha tsa ho khetha le ho beha sebaka, le lintlha tsa ts'ebetso tse laoloang
• Libaka tsa tlhahlobo tsa boleng tse lumellanang le ts'epo le litlhoko tsa ts'ebetso tsa boto

5.5 Mokhahlelo oa 5: Netefatso le Kamohelo ea Ts'ebetso

Netefatso e lokela ho shebana le likotsi tse ikhethang tsa meralo ea mekhahlelo e mengata:

• Netefatso ea sebopeho: palo ea lera, li-stackup, ka meaho, le litekanyo tsa bohlokoa
• Netefatso ea Motlakase: ho tswela pele/ho itšehla thajana, diteko tsa impedance moo ho hlokahalang, boitshwaro ba seporo sa motlakase
• Netefatso ea ts'ebetso: boitšoaro bo khahlanong le litšupiso tse tsebahalang hantle le litekanyetso tse hlalositsoeng tsa kamohelo

5.6 Mokhahlelo oa 6: Lintlafatso tse Laoloang le Likhetho tsa Moralo-bocha

Merero e mengata ea RE ea mekhahlelo e mengata e kenyelletsa ntlafatso bakeng sa tšehetso ea nako e telele:

• Ho nkeloa sebaka ha likarolo tse siiloeng ke nako ka mabaka a ho lekana a tlalehiloeng
• Lintlha tse ling tsa teko kapa maano a ho hlahloba moeli bakeng sa ts'ebeletso e betere
• Lintlafatso tsa ts'epo tse kang litsela tse ntlafalitsoeng tsa mocheso kapa liphetoho tse sitisang
• Ntlafatso ea tlhahiso ha ho ntse ho bolokoa lithibelo tsa foromo/ho lekana/mosebetsi

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6. Ketane ea Phepelo, Kotsi ea Bohata, le ho Haha ho Latela Lintho

6.1 Mohloli o Tšepahalang le Litokomane

Taeo ea ketane ea phepelo ea thepa e bohlokoa ha ho tsosolosoa liboto tsa khale. Lenaneo le sireletsang le hatisa ho fumana mehloli e lumelletsoeng le ho latela litlaleho. Ha liteishene tse sa lumelloang li sa qojoe bakeng sa likarolo tsa khale, tlhahlobo le litokomane tse thehiloeng kotsing li ba bohlokoa le ho feta.

6.2 Taolo ea Likotsi tsa Bohata

Likarolo tsa maiketsetso li ka baka ho hloleha ha bongoaneng, ho kheloha ha ts'ebetso, kapa liketsahalo tsa polokeho. Mokhoa o matla hangata o kenyelletsa:

• Theko e lumelletsoeng ea mofani oa thepa e nang le thepa e felletseng litokomane tsa ketane ea tlhokomelo
• Tlhahlobo ea 'nete bakeng sa likarolo tse tsoang ho morekisi ha ho hlokahala
• Ho sala morao ha lotho le ho boloka bopaki ba tlhahlobo bo amohetsoeng
• Liphetoho tse laoloang le lintlha tsa ho siuoa ke nako ho fokotsa kotsi nakong e tlang

6.3 Litaolo tsa Litokomane tse Thibelang ho Tsamaya ha Metsi

Mathata a mangata a tšehetso ea nako e telele a bakoa ke liphetoho tse sa laoleheng ha nako e ntse e ea. Litaolo tse matla tsa litokomane li fokotsa kotsi ena:

• Liphutheloana tsa tokollo tse laoloang: diphetho tse notletsweng, dintlha tsa kaho, le taolo ya ntlafatso
• Fetola taolo: tlhahlobo le tumello bakeng sa liphetolelo le liphetoho tsa ts'ebetso
• Traceability: lirekoto tsa maemo a mangata le bopaki ba boleng bo ka fumanoang ha ho hlokahala

Kopa Khotheishene ea Boenjiniere ba Reverse ea PCB ea Mekhahlelo e Mengata

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7. Bokgoni ba Boenjiniere ba PCB ba Mekhahlelo e Mengata ba Highleap

Highleap Electronics e fana ka tšehetso ea boenjiniere ba morao ba PCB ba mekhahlelo e mengata le tlhahiso e shebaneng le ho nepahala, ts'epahalo le meeli ea projeke e nang le boikarabello. Sepheo sa rona ke ho thusa bareki ho tsosolosa bokhoni ba tlhahiso, ho boloka thepa ea khale, le ho nolofalletsa meralo e ncha e lumelletsoeng ka litokomane tse laoloang le mesebetsi e tsamaisoang ke netefatso.

• Bokgoni ba ho etsa mesebetsi ya RE ya mekhahlelo e mengata: boiphihlelo ka mapolanka a mekato e fetang 4–20 ho pholletsa le lits'ebetso tsa indasteri, tsa bongaka, tsa matla, tsa lisebelisoa le tsa lipalangoang
• Kaho botjha e susumetsoang ke bopaki: ho etsa litšoantšo, metrology, le 'mapa oa khokahano ea kahare ho fokotsa likhakanyo
• Lintho tse laoloang tse ka tlisoang: moralo, BOM, diphetho tsa sebopeho ka taolo ya ntlafatso le ditokomane tsa diphetoho
• Tšehetso ea tlhahiso: lihlahisoa tse itokiselitseng tlhahiso tse tšehetsoang ke thepa moralo le taeo ea ho bokellana
• Ho itokisetsa kopano: lintlha tsa ts'ebetso le ho haha ​​​​data e tsamaellanang le tse tšepahalang kopano ho bolaoa
• Tlhahlobo le netefatso: bopaki ba boleng bo hlophisitsoeng le liteko tse kenang/tse tsoang tse tšehetsoang ke tlhahlobo Workflows
• Tšehetso ea kamohelo e sebetsang: merero ea ho holisa, mekhoa ea ho amohela, le liteko tse sebetsang maano a tsamaellanang le kopo

7.1 Kamohelo e nang le Boikarabelo ea Morero

Hobane boenjiniere ba morao ba PCB bo ka ba bonolo, re hatisa taolo e nang le boikarabelo ea ho ja le ho laola boholo ba thepa. Merero e etsoa ka merero e molaong joalo ka ho nkela thepa ea beng kapa meralo e mecha e lumelletsoeng, ka ts'ebetso e sireletsehileng ea thepa ea bareki le lintlha tsa tekheniki. Mokhoa ona o reretsoe ho boloka bareki ba kholisehile hore mosebetsi o etsoa ka boitšoaro le ka har'a meeli e loketseng ea molao.

7.2 Seo U se Fumanang

Ho latela boholo, lintho tse ka tlisoang li ka kenyelletsa sephutheloana sa litokomane se tsosolositsoeng (li-schematics, BOM, moralo), liphetho tse itokiselitseng tlhahiso, tataiso ea stackup le impedance, likhothaletso tsa netefatso, le lintho tsa khale tse laoloang tsa tlhophiso ho tšehetsa meaho e pheta-phetoang le ts'ehetso ea nako e telele.