Tataiso e Felletseng ea Teko ea Ts'ebetso ea Potoloho (FCT) ho Kopano ea PCB le Tlhahisong.

Teko ea Ts'ebetso ea Potoloho (FCT) e eme e le motheo oa ts'ebetso ea netefatso ea boleng ba ho etsa le ho kopanya Boto e hatisitsoeng ea potoloho (PCB). Ha ho rarahana ha lisebelisoa tsa elektroniki ho ntse ho eketseha, bohlokoa ba mekhoa e matla ea tlhahlobo bo ntse bo eketseha. Tataiso ena e felletseng e shebana le ho rarahana ha FCT, e fana ka tlhahlobo e qaqileng ea melao-motheo, mekhoa le karolo ea bohlokoa ho netefatsa ho ts'epahala le ts'ebetso ea li-PCB.

The Basics of Functional Circuit Testing

Tlhaloso le Morero

Testing Circuit Testing, eo hangata e bitsoang Function Verification Test (FVT) kapa feela Function Test, ke ts'ebetso e felletseng ea tlhahlobo e etselitsoeng ho lekola ts'ebetso e felletseng ea PCB. Ho fapana le mekhoa e meng ea liteko e shebaneng le likarolo kapa likhokahano ka bomong, FCT e hlahloba PCB e le yuniti e kopaneng, e netefatsa hore likarolo tsohle li sebetsa ka kutloano ho etsa mesebetsi e reriloeng. Lipheo tsa mantlha tsa FCT li kenyelletsa:

• Ho netefatsa hore PCB e sebetsa ho latela litlhaloso tsa eona tsa moralo
• Ho tsebahatsa mefokolo efe kapa efe ea ts'ebetso e kanna ea ba e phonyohile mekhahlelo ea pejana ea tlhahlobo
• Ho etsisa maemo a sebele a ts'ebetso ea lefats'e ho netefatsa ho ts'epahala
• Ho netefatsa ts'ebetso ea PCB ho pholletsa le mefuta eohle ea eona ea ts'ebetso

FCT Ts'ebetsong ea Tlhahiso ea PCB

FCT hangata e etsahala maemong a ho qetela a tlhahiso ea PCB, kamora ho beoa ha likarolo, ho soasoa le tlhahlobo ea pele. Boemo ba eona ts'ebetsong ea tlhahiso ke ea leano, e sebetsa e le mokhoa oa ho qetela oa tšireletso khahlanong le likoli pele sehlahisoa se fihla ho mosebedisi. Nako ea FCT e lumella ho sibolloa ha litaba tse ka hlahang ka lebaka la litlamorao tsa ts'ebetso ea tlhahiso, ho kenyelletsa:

• Tšebelisano ea likarolo
• Botšepehi ba pontšo ho pholletsa le boto kaofela
• Kabo ea matla le tšebeliso
• Litšobotsi tsa mocheso tlas'a mojaro

Mokhoa oa FCT le Ts'ebetsong

Moqapi oa Moqapi oa Teko

Motheo oa sistimi e sebetsang ea FCT e lutse molemong oa eona oa liteko. Sesebelisoa sena se entsoeng ka mokhoa o ikhethileng se hokahana ka kotloloho le PCB tlas'a teko, se fana ka likhokahano tsa motlakase le ts'ehetso ea mochini. Lintlha tse ka sehloohong tsa moralo oa tlhahlobo ea tlhahlobo li kenyelletsa:

• Mekhoa ea ho lokisoa ka mokhoa o nepahetseng ho netefatsa ho kopana ka nepo le lintlha tsa tlhahlobo
• Li-arrays tse ikhethileng tsa pogo bakeng sa likhokahano tsa motlakase tse tšepahalang
• Ho kopanya mekhoa ea ho laola tikoloho bakeng sa taolo ea mocheso le mongobo
• Ho sireletsa ho fokotsa tšitiso ea motlakase nakong ea tlhahlobo

Mekhoa ea ho Khothatsa le ho Lekanya

FCT e sebelisa mekhoa e fapaneng ea ho susumetsa le ho lekanya ho lekola ts'ebetso ea PCB ka botlalo:

• Teko ea Digital I/O: Lekola mesebetsi e utloahalang ea boto ka ho sebelisa mekhoa e hlalositsoeng esale pele le ho hlahloba likarabo tsa tlhahiso.
• Analog Signal Analysis: E lekola botšepehi ba lipotoloho tsa analog ka tlhahiso ea waveform le tlhahlobo.
• Teko ea Phepelo ea Matla: E netefatsa botsitso le katleho ea litsamaiso tsa kabo ea matla a onboard tlasa maemo a fapaneng a mojaro.
• Tlhahlobo ea Oache le Nako: E netefatsa khokahano e nepahetseng le likamano tsa nako lipakeng tsa likarolo tse fapaneng tsa potoloho.

Motsoako oa Thepa e Ikemetseng ea Teko (ATE).

Sistimi ea sejoale-joale ea FCT hangata e sebelisa lisebelisoa tse tsoetseng pele tsa Teko ho ntlafatsa ts'ebetso le ho pheta-pheta. Sistimi ea ATE hangata e kenyelletsa:

• Lijenereithara tsa matshwao a dijithale tsa lebelo le phahameng
• Li-oscilloscope tsa likanale tse ngata le li-analyzer tsa logic
• Lisebelisoa tsa motlakase tse nepahetseng le meroalo ea elektroniki
• Software e khethehileng bakeng sa tatellano ea liteko le tlhahlobo ea data

Mekhoa le Mekhoa e Tsoetseng Pele ea FCT

Teko ea Moeli oa Moeli ho FCT

Ho kenyelletsa teko ea ho skena moeli oa IEEE 1149.1 (JTAG) ts'ebetsong ea FCT ho ka ntlafatsa haholo tšireletso ea liteko, haholo-holo bakeng sa li-PCB tse teteaneng, tse nang le mekhahlelo e mengata . Mokhoa ona o lumella:

• Teko ea likhokahano lipakeng tsa li-IC tse lumellanang le JTAG
• Mananeo le netefatso ea lisebelisoa tse rarahaneng tsa logic (CPLDs) le li-gate tse hlophisitsoeng hantle tsa masimong (FPGAs)
• Litlhahlobo tse ntlafalitsoeng bakeng sa ho khetholla libaka tse nang le liphoso

Teko ea Ts'ebetso ea Lipotoloho tse Kopantsoeng-Matšoao

Ha li-PCB li ntse li tsoela pele ho kenyelletsa ts'ebetso ea analog le ea dijithale, mekhoa ea FCT e bile teng ho rarolla mathata a ikhethang a tlhahlobo ea matšoao a kopaneng:

• Ho hlahisa li-analog le tsa dijithale tse susumetsang
• Ho fumana data ka lebelo le phahameng bakeng sa tlhahlobo ea matšoao a nako ea nnete
• Ts'ebetsong ea li-algorithms tse rarahaneng tsa DSP bakeng sa tlhahlobo ea ts'ebetso ea matšoao

Tlhahlobo ea Khatello ea Tikoloho ho FCT

Ho kenyelletsa tlhahlobo ea khatello ea tikoloho ts'ebetsong ea FCT ho ka senola mefokolo e patehileng le ho lekola botsitso ba PCB tlasa maemo a feteletseng:

• Mocheso oa libaesekele ho etsisa khatello ea mocheso
• Teko ea vibration ho lekola botšepehi ba mochini
• Ho pepeseha ha mongobo ho hlahloba ho hanyetsa mongobo

Ho bapisa FCT le Mekhoa e meng ea Teko

FCT vs. Teko ea Ka hare ho Potoloho (ICT)

Le ha FCT le ICT ka bobeli li bapala karolo ea bohlokoa ho netefatso ea boleng ba PCB, li sebeletsa merero e fapaneng:

• ICT e shebane le tlhahlobo ea likarolo tsa motho ka mong le netefatso ea khokahano.
• FCT e lekola ts'ebetso e akaretsang ea PCB e kopaneng.
• ICT hangata e etsahala pejana ts'ebetsong ea tlhahiso, ha FCT e etsoa libotong tse kopaneng ka botlalo.
• ICT e fana ka tšireletso e phahameng ea liphoso bakeng sa mefokolo ea tlhahiso, ha FCT e fana ka tlhahlobo e ntle ea ts'ebetso ea ts'ebetso.

FCT vs. Automated Optical Inspection (AOI)

AOI le FCT lia tlatsana ts'ebetsong ea tlhahlobo ea PCB:

• AOI e ipabola tabeng ea ho lemoha mefokolo ea pono joalo ka likarolo tse sa lumellaneng kapa litaba tsa solder.
• FCT e khetholla mathata a ts'ebetso a ka 'nang a se ke a bonahala ka tlhahlobo ea optical.
• AOI hangata e potlakile 'me e ka etsoa ka har'a marang-rang, ha FCT e hloka nako e eketsehileng empa e fana ka lintlha tse tebileng tsa ts'ebetso.

Mekhoa e Molemo ka ho Fetisisa ea FCT le Maemo a Indasteri

Ntlafatso ea Ts'ebetso ea Teko

Ho eketsa katleho ea FCT ho hloka ho nahanoa ka hloko mabapi le tšireletso ea liteko:

• Ho nts'etsapele li-vector tsa liteko tse felletseng ho sebelisa mesebetsi eohle ea bohlokoa ea potoloho.
• Ho kenya ts'ebetsong mekhoa ea ho etsisa phoso ho hlahloba tšireletso ea liteko.
• Ho leka-lekanya botebo ba tlhahlobo le litlhoko tsa tlhahiso ea tlhahiso.

Litokomane tsa FCT le Traceability

Ho boloka litlaleho tse qaqileng tsa mekhoa le liphetho tsa FCT ho bohlokoa bakeng sa tiisetso ea boleng le ho latela melao ea tsamaiso:

• Ho theha litlaleho tse tloaelehileng tsa liteko tse nang le litekanyetso tse hlakileng tsa ho pasa/ho hloleha.
• Ho kenya tšebetsong lits'ebetso tsa barcode kapa RFID bakeng sa ho lateloa ha boemo ba yuniti.
• Ho theha mekhoa e sireletsehileng ea polokelo ea data bakeng sa ho boloka rekoto ea nako e telele.

Maemo a Indasteri le Litifikeiti

Ho latela maemo a amehang a indasteri ho netefatsa botsitso le ho ts'epahala ts'ebetsong ea FCT:

• EA-9252B: Litaelo tsa Teko ea Motlakase ea Liboto tsa Potoloho tse Hatisitsoeng tse sa Teng.
• ISO / IEC 17025: Litlhoko tse akaretsang bakeng sa bokhoni ba lilaboratori tsa liteko le tsa calibration.
• IECQ QC 080000: Litlhoko tsa Tsamaiso ea Tsamaiso ea Lintho Tse Kotsi.

Mehopolo ea Moruo ho Ts'ebetsong ea FCT

Litšenyehelo tsa Poloko bakeng sa Baetsi ba PCB

Teko ea Potoloho e Sebetsang (FCT) ke karolo ea bohlokoa ea tlhahiso ea PCB , e fanang ka melemo e mengata e bolokang litšenyehelo:

1. Ho Fumana Phoso ea Pele: Ka ho tsebahatsa mefokolo pele ho ts'ebetso ea tlhahiso, FCT e thibela lihlahisoa tse nang le bokooa ho tsoela pele ka mohala oa kopano. Sena se fokotsa tlhoko ea ho sebetsa bocha kapa ho hlakoloa ha liboto tse kopaneng ka botlalo.
2. Litlhahiso tse Fokotsoeng tsa Tiisetso: Teko e phethahetseng e netefatsa hore ke li-PCB tsa boleng bo holimo feela tse fihlang 'marakeng, ho fokotsa haholo liketsahalo tsa ho hloleha ha masimo le likopo tse latelang tsa tiisetso. Sena ha se boloke litšenyehelo tse tobileng feela empa se boetse se sireletsa botumo ba moetsi.
3. Bokhoni ba Tlhahiso: Litsamaiso tse ikemetseng tsa FCT li nolofatsa ts'ebetso ea tlhahlobo, ho fokotsa litšenyehelo tsa basebetsi le ho eketsa tlhahiso ea tlhahiso. Ts'ebetso ena e etsa hore ho be le litšenyehelo tse tlase tsa tlhahlobo ea yuniti le nako e potlakileng ea ho ea 'marakeng bakeng sa lihlahisoa tse ncha.
4. Ntlafatso ea Tšepahala ea Sehlahisoa: Ho netefatsa hore PCB ka 'ngoe e sebetsa ka nepo pele e tloha fekthering ho matlafatsa ts'epahalo ea lihlahisoa tsa ho qetela tsa elektroniki. Ho tšepahala hona ho fokotsa litšenyehelo tsa nako e telele tsa tšehetso le ho lokisa.

Litšenyehelo tsa Poloko bakeng sa Bareki ba PCB

Bakeng sa bareki ba PCB, FCT e fana ka melemo e mengata ea ho boloka litšenyehelo ka ho netefatsa hore ba fumana lihlahisoa tsa boleng bo holimo, tse tšepahalang:

1. Litšenyehelo tse Tlaase tsa Tlhokomelo: Li-PCB tsa boleng bo phahameng tse fetisitseng FCT e thata ha li na monyetla oa ho hlōleha tšimong, ho fokotsa litšenyehelo tsa tlhokomelo le ho lokisa bakeng sa basebelisi ba ho qetela.
2. Nako ea Phomolo e Fokotseng: Li-PCB tse tšepahalang li bolela maemo a fokolang a ho senyeha ha lisebelisoa, ho lebisang ho fokotseng nako le ts'ebetso e sebetsang hantle. Sena se bohlokoa haholo liindastering moo ho fokotseha ha nako ho ka lebisang tahlehelong e kholo ea lichelete.
3. Nako e Atolositsoeng ea Bophelo ba Sehlahisoa: Lihlahisoa tse hahiloeng ka li-PCB tse lekiloeng ka botlalo li na le nako e telele ea ho phela. Sena se bolela hore ho na le tse ling tse fokolang le litšenyehelo tse tlase tsa ho ba beng ba bareki.
4. Khotsofalo e ntlafalitsoeng ea bareki: Basebelisi ba na le mathata a fokolang ka lihlahisoa, e leng se lebisang ho khotsofalo e phahameng le botšepehi. Bareki ba khotsofetseng ba na le menyetla e mengata ea ho reka hape le ho khothaletsa sehlahisoa ho ba bang, ho khanna thekiso le ho fokotsa litšenyehelo tsa ho bapatsa.

FCT ha e thuse bahlahisi ba PCB feela ho boloka maemo a holimo a tlhahiso le katleho ea ts'ebetso empa hape e netefatsa hore bareki ba PCB ba rua molemo ka ho fumana lihlahisoa tse tšepahalang, tsa boleng bo holimo tse fokotsang litšenyehelo tsa bona ka kakaretso le ho ntlafatsa ts'ebetso ea bona e sebetsang hantle.

fihlela qeto e

Ho tseba lintho tse rarahaneng tsa Teko ea Ts'ebetso ea Potoloho ho bohlokoa bakeng sa setsebi leha e le sefe se amehang moralong oa PCB, tlhahisong, kapa taolong ea boleng. Ka ho lula ba tseba tsoelo-pele ea morao-rao ea mekhoa le mahlale a FCT, baenjiniere le batsamaisi ba ka netefatsa hore lits'ebetso tsa bona tsa tlhahiso ea PCB li lula li le ka pele ho boleng le ts'epahalo lefapheng le ntseng le tsoela pele la tlhahiso ea lisebelisoa tsa elektroniki.

FAQs

Ke liphapano life tse ka sehloohong lipakeng tsa Teko ea Potoloho ea Mosebetsi (FCT) le Tlhahlobo ea Burn-In (BIT)?

Teko ea Burn-In (BIT) le FCT ka bobeli li sebelisoa ho netefatsa ho ts'epahala ha li-PCB, empa li sebeletsa merero e fapaneng. FCT e lekola tšebetso ea kapele ea PCB ka ho etsisa maemo a sebele a lefatše le ho lekola ts'ebetso e nepahetseng. Ka lehlakoreng le leng, BIT e beha PCB ho mocheso o phahameng le li-voltage ka nako e telele ho tseba ho hloleha ha bophelo ba pele le ho netefatsa ts'epo ea nako e telele.

FCT e kenya letsoho joang ho sibolloeng ha liphoso tsa nakoana ho li-PCB?

FCT e sebetsa ka ho khetheha ho tsebahatseng liphoso tsa nako le nako, e leng mefokolo e sa bonahaleng khafetsa. Ka ho etsisa maemo a sebele a ts'ebetso ea lefats'e le lintho tse fapaneng tse susumetsang, FCT e ka senola litaba tse ka 'nang tsa etsahala feela tlas'a maemo a itseng, a kang ho feto-fetoha ha motlakase, mocheso, kapa khatello ea mochine.

Na FCT e ka kopanngoa le mekhoa e meng ea tlhahlobo ho ntlafatsa ts'ebetso ea tlhahlobo ka kakaretso?

E, FCT e ka kopanngoa ka katleho le mekhoa e meng ea liteko e kang Teko ea Ka Hare ho Potoloho (ICT) le Tlhahlobo ea Optical Automated (AOI) ho fana ka kakaretso ea tlhahlobo. ICT e hlahloba botšepehi ba karolo ea motho ka mong le khokahano, AOI e khetholla liphoso tsa pono, 'me FCT e netefatsa ts'ebetso eohle, e netefatsa ts'ebetso e phethahetseng ea netefatso ea boleng.

Boemo ba tikoloho bo phetha karolo efe ts'ebetsong ea FCT?

Boemo ba tikoloho ho FCT bo kenyelletsa ho beha PCB tlas'a likhatello tse fapaneng tsa tikoloho joalo ka potoloho ea mocheso, mongobo le ho thothomela. Ts'ebetso ena e thusa ho tsebahatsa liphoso tse patehileng tse ka hlahang feela tlasa maemo a feteletseng, ho netefatsa ho tiea le ho ts'epahala ha PCB lits'ebetsong tsa lefats'e la nnete.

Tšebeliso ea mekhoa ea ho hlahloba moeli e ntlafatsa katleho ea FCT joang?

Mekhoa ea ho hlahloba moeli, e thehiloeng ho IEEE 1149.1 e tloaelehileng, e ntlafatsa FCT ka ho lumella ho fihlella li-node tse ka hare tsa li-circuits tse kopantsoeng ntle le tlhokahalo ea lisebelisoa tsa 'mele. Mokhoa ona o thusa ho lekoa ha likhokahano le ts'ebetso ea potoloho ea kahare, haholo li-PCB tse rarahaneng, tse petelitsoeng ka bongata, ka hona ho ntlafatsa ts'ebetso ea liphoso le bokhoni ba tlhahlobo.