E ‘ngoe, teko ea motlakase

PCB in the process of production, hard to avoid the short circuit, open circuit and leakage caused by external factors, such as electrical flaws, coupled with the continuous toward high density PCB, fine spacing and the evolution of multi-level, and failure to timely to bad plate screening out, and let it flow into the process, is bound to cause waste more cost, so in addition to the improvement of the process control, Mekhoa e ntlafalitsoeng ea liteko e ka fa baetsi ba PCB tharollo ea ho fokotsa sekhahla sa lihlahisoa le ho ntlafatsa lihlahisoa.

Ts’ebetsong ea tlhahiso ea lihlahisoa tsa elektroniki, tahlehelo ea litšenyehelo e bakoang ke liphoso e na le likhato tse fapaneng mohatong ka mong, ‘me ha ho sibolloa pejana, ho theola litšenyehelo tsa tokiso. Molao oa 10 “s o sebelisoa hangata ho hakanya Litšenyehelo tsa tokiso ha PCB e fumanoa e na le sekoli maemong a fapaneng a Ts’ebetso. Mohlala, kamora ho phethela tlhahiso ea poleiti e se nang letho, haeba boto e potolohong e ka fumanoa ka nako ea nnete, hangata e hloka feela ho lokisa sekoli, kapa haholo tahlehelo ea poleiti e se nang letho; Leha ho le joalo, haeba potoloho e sa bonoe, boto e romelloa ho koporong e tlase ho phethela likarolo tsa ho kenya likarolo, ‘me sebōpi sa thini le ho lokisoa ha IR, empa potoloho e fumanoa ka nako ena, mokelli oa kakaretso ea tlase o tla botsa k’hamphani e se nang letho ea boto ho lefella litšenyehelo tsa likarolo, litefiso tse boima tsa indasteri, litefiso tsa tlhahlobo, jj. Haeba ka bomalimabe ho feta, boto e nang le phoso e ntse e sa fumanoe tekong ea indasteri ea kopano, empa tsamaisong ea lihlahisoa tse felileng, joalo ka likhomphutha, mehala ea thekeng, likarolo tsa koloi, joalo-joalo, teko ea ho fumana tahlehelo, e tla senola boto e se nang letho ka nako e tšoanetseng makhetlo a lekholo, makhetlo a sekete, kapa le ho feta. Kahoo, ho etsa liteko tsa motlakase bakeng sa baetsi ba PCB ho bua ka ho sibolla liboto tse sa sebetseng kapele.

Motsamaisi oa noka hangata o hloka hore moetsi oa PCB a etse tlhahlobo ea motlakase ea liperesente tse 100 mme ka hona o lumellana le moetsi oa PCB ka litlhaloso tsa maemo le liteko tsa liteko, ka hona mahlakore ka bobeli a tla qala ka ho hlaka ho hlalosa tse latelang:

1. Mohloli oa data oa tlhahlobo le sebopeho

2, maemo a liteko, joalo ka voltage, hajoale, ho koala le khokahano

3. Mokhoa oa tlhahiso le khetho ea lisebelisoa

4. Khaolo ea liteko

5, lokisa tobileng

Ho na le mekhahlelo e meraro tlhahiso ea PCB e lokelang ho lekoa:

1. Kamora ho cheka lera le ka hare

2. Kamora ho manolla potoloho e kantle

3, sehlahisoa se felile

Karolo e ngoe le e ngoe hangata e tla ba le makhetlo a 2 ~ 3 a liteko tsa 100%, e hlakole poleiti e mpe bakeng sa ts’ebetso e boima. Ka hona, seteishene sa liteko hape ke mohloli o motle oa ho bokella lintlha ho sekaseka lintlha tsa bothata ba ts’ebetso. Ho ea ka liphetho tsa lipalo-palo, o ka fumana liperesente tsa potoloho e bulehileng, potoloho e khuts’oane le mathata a mang a ho koala, ebe o leka kamora ho nchafatsa. Kamora ho hlopha lintlha, sebelisa mokhoa oa taolo ea boleng ho fumana motso oa bothata le ho o rarolla.

Mokhoa oa bobeli oa ho lekanya motlakase le lisebelisoa

Mekhoa ea liteko tsa motlakase e kenyelletsa: Grid e inehetseng, Universal Gride, Flying Probe, e-beam, lesela le tsamaisang, Bokgoni le MAN-scan MAN ke lisebelisoa tse tharo tse sebelisoang haholo. They are special test machine, general test machine and flying needle test machine. Bakeng sa ho utloisisa hantle mesebetsi ea sesebelisoa ka seng, likarolo tsa lisebelisoa tse tharo tse kholo li bapisoa ka tlase.

1. Teko e inehetseng

Fixtures (such as the pins and dials used to test circuit boards) only work with one material number. Boards with different material numbers cannot be tested and recycled. Mabapi le lintlha tsa liteko, karolo e le ‘ngoe e ka lekoa kahare ho lintlha tse 10,240, le mahlakore ka bobeli kahare ho lintlha tse 8,192. Mabapi le botenya ba liteko, ka lebaka la botenya ba hlooho ea probe, e loketse mapolanka kaholimo ho sekontiri.

2. Tlhahlobo ea Grid ea Bokahohle

Molao-motheo oa tlhahlobo ea tšebeliso e akaretsang ke hore moralo oa potoloho ea PCB o entsoe ho latela Grid. Ka kakaretso, seo ho thoeng ke sehokelo sa mohala se supa hole ea Grid, e hlahisoang ke Pitch (ka linako tse ling e ka bonts’oa ke botenya ba lesoba), mme tlhahlobo ea ts’ebeliso e akaretsang e ipapisitse le molao-motheo ona. Ho latela boemo ba lesoba, substrate ea G10 e sebelisoa e le Mask. Ke feela ka sekoting boemo ba probe bo ka fetisang Mask bakeng sa tekanyo ea motlakase, ka hona tlhahiso ea sesebelisoa e bonolo ebile e potlakile, mme probe e ka sebelisoa bocha. Grid e tloaelehileng e hlophisitsoeng ka nale e kholo e nang le lintlha tse ngata tsa ho lekanya e ka sebelisoa ho hlahisa tray ea nale e tsamaeang ho latela linomoro tse fapaneng. Hafeela teraka ea nale e ka tsamaisoang e fetoloa nakong ea tlhahiso ea bongata, e ka sebelisoa bakeng sa tlhahlobo ea bongata ba linomoro tse fapaneng. Ntle le moo, ho netefatsa hore sistimi ea potoloho ea boto e phethiloeng ea PCB ha e sitisoe, ho hlokahala hore ho etsoe teko ea motlakase e bulehileng / e khuts’oane ka botong ka poleiti ea nale ea sebaka se ikopantseng mochini o lekanyang oa motlakase o nang le matla a phahameng ( joalo ka 250V) lintlha tse lekanyang tse ngata. Mofuta ona oa mochini oa TesTIng oa lefats’e o bitsoa “AutomaTIc TesTIng Equipment” (ATE).

Lintlha tsa tlhahlobo ea tšebeliso e akaretsang hangata li feta lintlha tse 10,000 XNUMX, ‘me palo ea liteko e bitsoa tlhahlobo ea grid. Haeba e sebelisoa mapolankeng a nang le letsoalo le phahameng, sebaka se haufi haholo, ‘me se arotsoe ho moralo oa marang-rang, ka hona ke sa teko ea grid,’ me sesebelisoa se tlameha ho etsoa ka ho khetheha. Sekhahla sa teko ea tlhahlobo e akaretsang se ka fihlela QFP.

3. Tlhahlobo ea ho fofa

Molao-motheo oa tlhahlobo ea nale e fofang o bonolo haholo. Ho hlokahala feela li-probe tse peli ho tsamaisa x, y le Z ho leka lipheletsong tse peli tsa mola ka mong ka bonngoe, ka hona ha ho na tlhoko ea ho etsa lisebelisoa tse ling tse turang. Leha ho le joalo, ka lebaka la teko ea ho qetela, lebelo la ho lekanya le lieha haholo, hoo e ka bang lintlha tse 10 ~ 40 / SEC, ka hona e loketse mehlala le tlhahiso e nyane ea molumo; Mabapi le botenya ba liteko, tlhahlobo ea nale e fofang e ka sebelisoa ho lipoleiti tse phahameng haholo (), joalo ka MCM.