PCB nooca ilaalinta

Ereyada ugu fudud, haynta PCB waxaa lagu qeexi karaa sida soo socota:

Qaab -dhismeedka fiilooyinka PCB waxaa naqshadeeyaha u qaabeeyey qaybaha dibadda ee meelaha aan lagu dhejin guddiga wareegga, halkaas oo raad -naxa ama qaybaha kale ee guddiga wareegga ay geli doonaan ama gudbayaan. Aaggu wuxuu noqon karaa ama ku jiri karaa naxaas wuxuuna noqon karaa qaab kasta.

Xaaladaha badankood, aagagga haynta ayaa loo adeegsadaa in meelaha guddiyada qaarkood laga fogeeyo qaybaha kale si looga hortago ama loo yareeyo EMI. Si kastaba ha noqotee, waxaa sidoo kale loo isticmaalaa in lagu bixiyo kala-fogaanshaha raad-raac-raadinta qaybaha dusha sare ku xiran. Tusaalooyinka waa soo -saareyaal ama FPGas, kuwaas oo inta badan ah qiimeynta PCB iyo guddiyada horumarinta. Qaar ka mid ah noocyada boos celinta caadiga ah ayaa hoos ku taxan.

Nooca ilaalinta PCB

L anteeno

Malaha, nooca ugu badan ee boos celintu waa in la xareeyo aag silig naxaas ah oo ku wareegsan dusha sare ama anteeno isku xiran si looga hortago EMI inay saameyn ku yeelato daacadnimada signalka la soo gudbiyey ama la helay. Boos celintu waxa kale oo ku jiri kara fiilooyinka anteenada ee wareegyada kale.

Qaybaha L

Waxa kale oo caadi ah in meel loo banneeyo taageereyaasha agagaarka qaybaha (gaar ahaan hiitarka EM). Tani waa run microprocessors -ka, FPgas, AFE iyo qaybaha kale ee tirinta biinka sare (badiyaa loo isticmaalo baakadaha balastarka).

L Aagga bannaanka laamiga ah

Nadiifinta geesaha ayaa aad muhiim ugu ah wax soo saarka. Gaar ahaan, guddiyada waxaa loo qaybiyaa looxyo gaar ah inta lagu guda jiro shirka PCB. Si aad tan u samayso, waa in loo banneeyo ku filan fiilooyinka ama gooldhalinta.

L raadraaca

Sometimes it may be advantageous to define reservation areas around traces. Mararka qaarkood waxaa loo adeegsadaa khadadka gudbinta ee saldhigga ah si loo gaaro carqalad la xakameeyo.

L qodid

Taargooyin badan ayaa lagu rakibay boolal ama boolal. In these cases, it is helpful to define the spacing around the holes. Insufficient spacing can affect assembly, interrupt circuit operation, and even cause circuit board damage. Wixii godad ah, waxaad inta badan raacdaa xeerarka CM ee DFM.

Xiriiriyaha L

Depending on the connector type in terms of layout and placement, your board design may need to consider two considerations: the footprint of the connector board and the paneling. Caadi ahaan, qaabeynta isku xiraha ama furaha kuma jiraan meel loogu talagalay fiilooyinka dibadda ama isku xirka fiilada. Xaaladahan, joogtaynta dawladdu waa muhiim si loo hubiyo in wareegga si dhab ah u fuliyo sidii la filayay.

L beddelid

Isticmaalka kale ee wanaagsan ee kaydka ayaa ah in la siiyo qol lagu rogrogo ama lagu wareejiyo furayaasha korontada ku dhegan.

Liiska kore wuxuu ku siinayaa qaar ka mid ah noocyada caadiga ah iyo u adeegsiga haynta PCB. Xaaladaha kale, si kastaba ha ahaatee, waxaa laga yaabaa inaad u baahato inaad qeexdo aagagga la keydiyay. Tusaale ahaan, haddii naqshaddaadu isticmaasho qaybo; Tusaale ahaan, amplifiers -ka wax -qabadka, halkaas oo ay ka jirto is -waafajin weyn oo is -waafajin ah oo u dhexeeya soo -gelinta iyo soo -saarka, wareegga ayaa laga yaabaa inuu u nugul yahay jawaab -celinta baxsiga hadda, sidaa darteed waxaa laga yaabaa inay lagama maarmaan noqoto in la bixiyo qaabkan soo socda ee ilaalinta: giraanta ilaalinta PCB. In kasta oo aan lagu tilmaamin aag la ilaaliyo, giraanta ilaalintu waxay u dhaqantaa sidii caqabad jidheed oo ku wajahan qaybaha iyo fiilooyinka dibadda, waxayna ka hortagtaa in gudaha gudaha ahi ka baxo aagga. Hadda waxaan diyaar u nahay inaan eegno sida loo hubiyo in boos celintu shaqadooda qabato.

Dhibaatada ka fogow

Tallaabooyinka haynta PCB ayaa kaliya waxtar leh haddii ay dhab ahaan gaaraan ujeeddooyinkooda. Tani waa siinta go’doominta aagagga gaarka ah ee guddiga wax kasta iyo dhammaan walxaha dibadda. Si taas loo gaaro, waxaad u baahan tahay inaad raacdo tilmaamahan Keepout -ka wanaagsan.

Heerka haynta PCB

L Go’aami sababta loo baahan yahay sii -haynta

L Go’aami inta boos loo baahan yahay marka la eego isticmaalka

L Isticmaal summadaha daabacaadda shaashadda si aad u aqoonsato aagagga kaydinta

L Hubi in dukumintigaaga naqshadda ay ku jiraan macluumaadka haynta

Haysashada PCB waa hanti qiimo u leh naqshadda guddigaaga, hubinta in ay u fuliso sidii la filayay. Adigoo raacaya tilmaamahan oo aad si buuxda uga faa’iideysaneyso, waxaad ka fogaan kartaa isku dhacyada qaabeynta oo aad hagaajin kartaa kalsoonida PCBA ka dib hawlgelinta.