In design PCB iyo wax soo saarka mass PCB final, Golaha PCB sidoo kale waa shay aad muhiim u ah, oo aan ku koobnayn oo kaliya heerka tayada guddiga PCB, laakiin sidoo kale saameeya qiimaha wax soo saarka PCB. Sida loo hubiyo tayada guddiga PCB, urur macquul ah oo wax ku ool ah, si loo badbaadiyo alaabta ceyriinka ah, shirkadda wax soo saarku waxay muhiimad weyn siisaa xallinta dhibaato.

1. Qaabka isku xidhka

Waxaa jira laba hab oo isku xira PCB, mid waa V-cut, kan kalena waa isku xirka daloolka shaambadda. V-cut wuxuu guud ahaan ku habboon yahay PCB oo leh qaab leydi ah, oo lagu garto geedo hagaagsan ka dib kala tagga iyo qiimaha wax-qabadka oo hooseeya, markaa waxaa lagu talinayaa in marka hore la isticmaalo. Daloolka shaambaddu guud ahaan waxay ku habboon tahay isu -ururinta nooca saxanka aan caadiga ahayn, tusaale ahaan, qaab dhismeedka saxanka MID “L” badiyaa wuxuu qaataa habka isku -xidhka godka shaambadda si uu isugu ururiyo saxanka.

2. Tirada sawirrada:

Baaxadda guddiga oo dhan waa in loo xisaabiyaa si waafaqsan xajmiga hal guddi PCB. Cabbirka guddiga oo dhan waa inuusan ka badnaan cabbirka ugu sarreeya ee PCB (dhererka guddiga PCB waa inuusan ka badan 250mm). Boodhadh aad u badan ayaa saamayn doona saxsanaanta booska guddiga iyo saxnaanta chip -ka. Guud ahaan, guddiga ugu weyn ee fasalka MID waa 2 loox, guddi-hoosaadka keyboard-ka iyo guddiga LCD-na kama badna 6 loox. Guddi-hoosaadka aagga gaarka ah waxaa lagu go’aamiyaa hadba xaaladda gaarka ah.

3, shuruudaha baarka link link god

PCB Mosaic-ka, tirada baararka isku xira waa inay ahaadaan kuwo ku habboon, guud ahaan 2-3 baararka isku xirka, si xoogga PCB-gu u buuxiyo shuruudaha geedi-socodka wax-soo-saarka, oo si fudud ha u jabin. Marka bar-xiraha la naqshadeeyo, waxaa guud ahaan loo baahan yahay in la naqshadeeyo dhererka 4-5mm, daloolka daloolka aan birta ahayn, cabbirku guud ahaan waa 0.3mm-0.5mm, kala fogaanshaha godadka waa 0.8-1.2mm;

4. Dhinaca geedi socodka

Marka guddigu uu aad u cufan yahay, booska geeska guddiga ayaa xaddidan, baahida loo qabo in la kordhiyo geeska geedi socodka, oo loo isticmaalo SMT PCB geeska gudbinta guddiga, guud ahaan 3-5mm. Guud ahaan, dalool meeleyn ayaa lagu daraa mid kasta oo ka mid ah afarta gees ee geeska geedi socodka, iyo dhibcaha meelaynta indhaha ayaa lagu daraa saddexda gees si loo xoojiyo meelaynta mashiinka.