Kuyika kwa anti-deformation kwa zigawo za bolodi zosindikizidwa

1. Mu kulimbikitsa chimango ndi PCBA unsembe, PCBA ndi galimoto unsembe ndondomeko, ndi zokhotakhota PCBA kapena zokhotakhota kulimbikitsa chimango kukhazikitsa mwachindunji kapena mokakamiza unsembe ndi PCBA unsembe mu olumala galimotoyo.Kupanikizika kwa kuyika kumayambitsa kuwonongeka ndi kusweka kwa chigawo chotsogolera (makamaka ma IC ochuluka kwambiri monga BGS ndi zigawo za pamwamba), mabowo otumizirana ma PCB amitundu yambiri ndi mizere yolumikizira mkati ndi mapepala a PCBs ambiri.Kuti warpage si kukwaniritsa zofunika za PCBA kapena analimbitsa chimango, mlengi ayenera kugwirizana ndi katswiri pamaso unsembe mu uta wake (zopotoka) mbali kutenga kapena kupanga miyeso yogwira "pedi".

2. Kusanthula

a.Pakati pa zigawo za chip capacitive, kuthekera kwa zolakwika mu ceramic chip capacitors ndipamwamba kwambiri, makamaka zotsatirazi.

b.PCBA kugwada ndi mapindikidwe chifukwa cha nkhawa waya mtolo unsembe.

c.Flatness wa PCBA pambuyo soldering ndi wamkulu kuposa 0.75%.

d.Mapangidwe asymmetric a mapepala kumapeto onse a ceramic chip capacitors.

e.Mapadi othandizira okhala ndi nthawi yowotchera kuposa 2s, kutentha kwa soldering kupitirira 245 ℃, ndi nthawi zonse zogulitsira zomwe zimaposa mtengo womwe watchulidwa ka 6.

f.Kusiyanasiyana kowonjezera kutentha pakati pa ceramic chip capacitor ndi PCB zakuthupi.

g.Mapangidwe a PCB okhala ndi mabowo okonza ndi ma ceramic chip capacitors oyandikira kwambiri wina ndi mnzake amayambitsa kupsinjika mukamamanga, etc.

h.Ngakhale ceramic chip capacitor ili ndi kukula kwapadi pa PCB, ngati kuchuluka kwa solder kuli kochulukirapo, kumawonjezera kupsinjika kwa chip capacitor pamene PCB ikupindika;kuchuluka koyenera kwa solder kuyenera kukhala 1/2 mpaka 2/3 ya kutalika kwa solder kumapeto kwa chip capacitor.

ndi.Kupsyinjika kulikonse kwakunja kapena kutentha kumayambitsa ming'alu ya ceramic chip capacitors.

• Ming'alu chifukwa cha extrusion wa okwera Chotola ndi malo mutu adzaonekera padziko chigawo chimodzi, kawirikawiri monga kuzungulira kapena theka mwezi zooneka mng'alu ndi kusintha mtundu, kapena pafupi pakati pa capacitor.
• Ming'alu chifukwa cha zoikamo zolakwika zamakina opangira ndi kukonzamagawo.Mutu wa chokweracho umagwiritsa ntchito chubu choyamwa vacuum kapena clamp yapakati kuti akhazikitse chigawocho, ndipo kutsika kwa Z-axis kutsika kumatha kuswa chigawo cha ceramic.Ngati mphamvu yaikulu yokwanira ikugwiritsidwa ntchito posankha ndikuyika mutu pamalo ena osati pakatikati pa thupi la ceramic, kupanikizika komwe kumagwiritsidwa ntchito pa capacitor kungakhale kokwanira kuwononga chigawocho.
• Kusankhidwa kolakwika kwa kukula kwa chip pick ndi mutu kungayambitse kusweka.Chosankha chaching'ono ndikuyika mutu chimayang'ana kwambiri mphamvu yoyika pakuyika, kuchititsa kuti malo ang'onoang'ono a ceramic chip capacitor akhale ndi nkhawa, zomwe zimapangitsa kuti ma ceramic chip capacitor asweka.
• Kuchuluka kosagwirizana kwa solder kumatulutsa kugawa kwapang'onopang'ono kosagwirizana pa gawo, ndipo pamapeto pake kumatsindika ndende ndi kusweka.
• Choyambitsa ming'alu ndi porosity ndi ming'alu pakati pa zigawo za ceramic chip capacitors ndi ceramic chip.

3. Njira zothetsera.

Limbikitsani kuwunika kwa ma ceramic chip capacitor: Ma Ceramic chip capacitor amawunikiridwa ndi C-type scanning acoustic microscope (C-SAM) ndi scanning laser acoustic microscope (SLAM), yomwe imatha kuwunika zolakwika za ceramic capacitor.