Uyilo lwePCB

Uyilo lwePCB

Isoftware

1. Isoftware esetyenziswa kakhulu e-China yi-Protel, i-Protel 99se, i-Protel DXP, i-Altium, isuka kwinkampani enye kwaye ihlaziywa rhoqo;inguqulo yangoku yi-Altium Designer 15 elula, uyilo luyinto eqhelekileyo, kodwa ayilunganga kakhulu kwiiPCB ezinzima.

2. I-Cadence SPB.Inguqulelo yangoku yiCadence SPB 16.5;uyilo lweskim se-ORCAD ngumgangatho wamazwe ngamazwe;Uyilo lwePCB kunye nokulinganisa zigqibelele kakhulu.Kunzima kakhulu ukusebenzisa kuneProtel.Iimfuno eziphambili zikwimeko ezinzima.;Kodwa kukho imithetho yoyilo, ngoko uyilo lusebenza ngakumbi, kwaye lomelele kakhulu kuneProtel.

3. I-Mentor's BORDSTATIONG kunye ne-EE, BOARDSTATION isebenza kuphela kwinkqubo ye-UNIX, engenzelwanga i-PC, ngoko ke bambalwa abantu abayisebenzisayo;i-Mentor EE yangoku inguqulo yi-Mentor EE 7.9, ikwinqanaba elifanayo neCadence SPB, amandla ayo kukutsala ucingo kunye nocingo oluphaphayo.Ibizwa ngokuba yinkosi yocingo oluphaphayo.

4. UKHOZI.Le yeyona software yoyilo yePCB isetyenziswa kakhulu eYurophu.Isoftware yoyilo yePCB ekhankanywe ngasentla isetyenziswa kakhulu.I-Cadence SPB kunye ne-Mentor EE ngookumkani abafanelekileyo.Ukuba yiPCB yoyilo yabaqalayo, ndicinga ukuba iCadence SPB ingcono, inokuphuhlisa umkhwa olungileyo woyilo lomyili, kwaye inokuqinisekisa umgangatho woyilo olungileyo.

Izakhono ezinxulumeneyo

Iingcebiso zokumisela

Uyilo kufuneka lubekwe kwiindawo ezahlukeneyo kwizigaba ezahlukeneyo.Kwinqanaba loyilo, amanqaku egridi amakhulu angasetyenziselwa ukwakhiwa kwesixhobo;

Kwizixhobo ezinkulu ezifana ne-ICs kunye nezixhumi ezingabekiyo, unokukhetha ukuchaneka kwegridi ye-50 ukuya kwi-100 mils yokucwangcisa.Kwizixhobo ezincinci ezifana nezixhasi, ii-capacitors, kunye ne-inductors, ungasebenzisa i-25 mils yokucwangcisa.Ukuchaneka kwamanqaku egridi amakhulu kuhambelana nokulungelelaniswa kwesixhobo kunye ne-aesthetics yoyilo.

Imithetho yoyilo lwePCB:

1. Kwiimeko eziqhelekileyo, onke amacandelo kufuneka abekwe kwindawo efanayo yebhodi yesekethe.Kuphela xa amacandelo amaleko aphezulu axinene kakhulu, anokuthi ezinye izixhobo eziphezulu zomda ophezulu kunye nobushushu obuphantsi, ezifana ne-resistors chip, i-chip capacitors, i-Chip ICs yokunamathisela ibekwe kumaleko asezantsi.

2. Kwisiseko sokuqinisekisa ukusebenza kombane, amacandelo kufuneka abekwe kwigridi kwaye acwangciswe ngokufana okanye i-perpendicular omnye komnye ukuze ahlambuluke kwaye ahle.Phantsi kweemeko eziqhelekileyo, amacandelo awavumelekanga ukuba adibane;amacandelo kufuneka acwangciswe ngokudibeneyo, kwaye amacandelo kufuneka abe kwi-layout yonke Ukusabalalisa okufanayo kunye noxinaniso olufanayo.

3. Ubuncinci bezithuba phakathi kweepatheni zepadi ezimeleneyo zamacandelo ahlukeneyo kwibhodi yesekethe kufuneka zibe ngaphezu kwe-1MM.

4. Ngokuqhelekileyo akukho ngaphantsi kwe-2MM kude nomda webhodi yesekethe.Ubume obungcono bebhodi yesekethe buxande, kunye nobude ukuya kububanzi be-3: 2 okanye 4: 3. Xa ubukhulu bebhodi bukhulu kune-200MM nge-150MM, ukufikeleleka kwebhodi yesekethe kufuneka kuthathelwe ingqalelo amandla omatshini.

Izakhono zokubeka

Kuyilo loyilo lwePCB, iyunithi yebhodi yesekethe kufuneka ihlalutywe, uyilo loyilo kufuneka lusekwe kumsebenzi, kwaye ukubekwa kwawo onke amacandelo esekethe kufuneka kuhlangabezane nale migaqo ilandelayo:

1. Lungiselela indawo yeyunithi yesekethe esebenzayo ngokwendlela yokuhamba kwesekethe, yenza i-layout ilungele ukujikeleza kwesignali, kwaye ugcine isignali ngendlela efanayo njengoko kunokwenzeka.

2. Ngamacandelo aphambili eyunithi nganye esebenzayo njengeziko, uyilo olumjikelezileyo.Amalungu kufuneka alungelelaniswe, ngokudibeneyo kwaye acwangciswe ngokudibeneyo kwi-PCB ukunciphisa kunye nokunciphisa umkhondo kunye nokudibanisa phakathi kwamacandelo.

3. Kwiisekethe ezisebenza kwii-frequencies eziphezulu, iiparamitha zokusabalalisa phakathi kwamacandelo kufuneka ziqwalaselwe.Isiphaluka esiqhelekileyo kufuneka silungiselele amacandelo ngokuhambelana kangangoko kunokwenzeka, kungekhona nje into enhle, kodwa kulula ukuyifaka kunye ne-solder, kwaye kulula ukuyivelisa ngobuninzi.

Yila amanyathelo

Uyilo loyilo

Kwi-PCB, amacandelo akhethekileyo abhekisa kumacandelo aphambili akwi-high-frequency part, awona macandelo angundoqo kwisekethe, amacandelo achaphazeleka ngokulula, amacandelo anamandla ombane aphezulu, amacandelo anesizukulwana esikhulu sobushushu, kunye namanye amacandelo esini esahlukileyo. Indawo yala macandelo akhethekileyo kufuneka ihlalutywe ngokucophelela, kwaye i-layout kufuneka ihlangabezane neemfuno zomsebenzi wesiphaluka kunye neemfuno zokuvelisa.Ukubekwa kwazo ngendlela engafanelekanga kunokubangela iingxaki zokuhambelana kwesekethe kunye neengxaki zemfezeko yomqondiso, nto leyo enokukhokelela ekusileleni koyilo lwePCB.

Xa ubeka amacandelo akhethekileyo kuyilo, kuqala qwalasela ubukhulu bePCB.Xa ubukhulu bePCB bukhulu kakhulu, imigca eprintiweyo inde, i-impedance iyanda, amandla okuchasa ukomisa ayancipha, kwaye iindleko nazo zinyuka;ukuba incinci kakhulu, ukutshatyalaliswa kobushushu akulungile, kwaye imigca ekufutshane iphazamisa ngokulula.Emva kokumisela ubungakanani bePCB, misela indawo yependulum yecandelo elikhethekileyo.Ekugqibeleni, ngokweyunithi yokusebenza, onke amacandelo esekethe abekwe.Indawo yamacandelo akhethekileyo kufuneka iqwalasele le migaqo ilandelayo ngexesha loyilo:

1. Nciphisa uxhulumaniso phakathi kwamacandelo aphezulu-frequency kangangoko kunokwenzeka, zama ukunciphisa iiparamitha zabo zokusabalalisa kunye nokuphazamiseka kwe-electromagnetic.Izixhobo ezithintekayo azikwazi ukusondelana kakhulu, kwaye igalelo kunye nemveliso kufuneka ibe kude kangangoko kunokwenzeka.

2 Amanye amacandelo okanye iingcingo zinokuba nomehluko ophezulu, kwaye umgama wabo kufuneka unyuswe ukuphepha iisekethe ezimfutshane ngengozi ezibangelwa ukukhutshwa.Amacandelo aphezulu ombane kufuneka agcinwe apho angenakufikelelwa khona.

3. Amacandelo anobunzima obungaphezulu kwe-15G inokulungiswa kunye neebakaki kwaye emva koko i-welded.Ezo zixhobo zinzima kwaye zishushu akufanele zibekwe kwibhodi yesiphaluka kodwa kufuneka zibekwe kwi-plate ephantsi ye-chassis eyintloko, kwaye ukutshatyalaliswa kobushushu kufuneka kuthathelwe ingqalelo.Amacandelo e-thermal kufuneka agcinwe kude nezinto zokufudumeza.

4. Uyilo lwamacandelo ahlengahlengiswayo afana ne-potentiometer, i-coil inductance adjustable, i-capacitors eguquguqukayo, i-micro switches, njl. Kufuneka iqwalasele iimfuno zesakhiwo sebhodi yonke.Ezinye iiswitshi ezisetyenziswa rhoqo kufuneka Zibeke apho unokufikelela ngokulula kuzo ngezandla zakho.Uyilo lwamacandelo lulungelelene, luxinene kwaye luxinene, alukho phezulu.

Enye yeempumelelo zemveliso kukunikela ingqalelo kumgangatho wangaphakathi.Kodwa kuyimfuneko ukuqwalasela ubuhle bonke, zombini iibhodi ezigqibeleleyo, ukuze zibe yimveliso ephumelelayo.

Ulandelelwano

1. Beka amacandelo ahambelana ngokusondeleyo nesakhiwo, njengeesokethi zamandla, izibane zesalathisi, utshintsho, izixhumi, njl.

2. Beka amacandelo akhethekileyo, njengamacandelo amakhulu, amacandelo anzima, amacandelo okufudumeza, i-transformers, i-ICs, njl.

3. Beka amacandelo amancinci.

Ukujonga ubume

1. Ingaba ubungakanani bebhodi yesekethe kunye nemizobo idibana nemilinganiselo yokucubungula.

2. Ingaba i-layout yamacandelo i-balanced, icwangciswe kakuhle, kwaye ingaba zonke zibekiwe.

3. Ingaba kukho ungquzulwano kuwo onke amanqanaba?Okufana nokuba amacandelo, isakhelo sangaphandle, kunye nenqanaba elifuna ushicilelo lwabucala lifanelekile.

3. Ingaba amacandelo asetyenziswa ngokuqhelekileyo akulungele ukusetyenziswa.Njengokutshintsha, iiplagi ezifakwe kwizixhobo zokusebenza, amacandelo ekufuneka atshintshwe rhoqo, njl.

4. Ngaba umgama phakathi kwamacandelo e-thermal kunye nezixhobo zokufudumeza zifanelekile?

5. Ingaba ukuchithwa kobushushu kulungile.

6. Ingaba ingxaki yokuphazamiseka komgca kufuneka ithathelwe ingqalelo.

Inqaku kunye nemifanekiso evela kwi-intanethi, ukuba kukho naluphi na ulwaphulo pls kuqala uqhagamshelane nathi ukuze ucime.
I-NeoDen ibonelela ngezisombululo zomgca wendibano ye-SMT epheleleyo, kubandakanywa i-oven ye-SMT reflow, umatshini wokuthengisa amaza, umatshini wokukhetha kunye nendawo, umshicileli we-solder paste, isilayishi se-PCB, i-PCB yokothula, i-chip mounter, umatshini we-SMT AOI, umatshini we-SMT SPI, umatshini we-SMT X-Ray, Isixhobo somgca we-SMT, imveliso ye-PCB Izixhobo ze-SMT ezisecaleni, njl.njl naluphi na uhlobo oomatshini be-SMT onokubafuna, nceda uqhagamshelane nathi ngolwazi oluthe kratya:

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