Sezvo COB isina inotungamira furemu yeIC package, asi inotsiviwa nePCB, dhizaini yePCB pads yakakosha, uye Pedzisa inogona chete kushandisa electroplated goridhe kana ENIG, zvikasadaro waya yegoridhe kana aluminium waya, kana kunyange Iyo yazvino waya dzemhangura. ichava nematambudziko asingagoni kurohwa. PCB Dhizaini Zvinodiwa zveCOB 1. Iyo yakapedzwa pamusoro pekurapwa kwePCB board inofanira kunge iri goridhe electroplating kana ENIG, uye yakati pfuurei zvishoma pane goridhe replating layer ye general PCB board, kuitira kupa simba rinodiwa kuDie Bonding uye kugadzira goridhe-aluminium. kana ndarama yose yendarama. 2. Munzvimbo yewaya yepadhi redunhu kunze kweDie Pad yeCOB, edza kufunga kuti kureba kwewaya yega yega yewelding ine hurefu hwakatarwa, kureva kuti, chinhambwe chejoint ye solder kubva pawafer kuenda kuPCB. pad inofanira kuva yakafanana sezvinobvira.Nzvimbo yewaya yega yega yekubatanidza inogona kudzorwa kuderedza dambudziko repfupi pfupi kana waya dzekubatanidza dzayambuka.Naizvozvo, iyo padhi dhizaini ine diagonal mitsetse haina kuzadzisa zvinodiwa.Zvinokurudzirwa kuti PCB pad spacing inogona kupfupikiswa kuti ibvise kutaridzika kwe diagonal pads.Izvo zvakare zvinogoneka kugadzira elliptical pad zvinzvimbo kuti zviparadzire zvakaenzana zvinzvimbo pakati pemabond waya. 3. Zvinokurudzirwa kuti COB wafer inofanira kunge iine mapoinzi maviri.Zvakanakisa kusashandisa nzvimbo dzedenderedzwa dzechinyakare SMT, asi kushandisa chinjika-yakaumbwa nzvimbo yekumisikidza, nekuti iyo Wire Bonding (waya bonding) muchina uri kuita otomatiki Kana uchiisa, chinzvimbo chinoitwa nekubata mutsara wakatwasuka. .Ini ndinofunga izvi imhaka yekuti hapana denderedzwa nzvimbo yekumisikidza pane yechinyakare inotungamira furemu, asi chete yakatwasuka yekunze furemu.Pamwe mamwe maWire Bonding michina haana kufanana.Zvinokurudzirwa kutanga kutaura nezvekushanda kwemuchina kuti uite dhizaini.
4, saizi yefa pad yePCB inofanirwa kunge yakakura zvishoma pane iyo chaiyo, iyo inogona kudzikamisa iyo yekubvisa kana uchiisa wafer, uye zvakare kudzivirira iyo mbichana kubva pakutenderera yakawandisa mufa pad.Zvinokurudzirwa kuti mapedhi echimedu padivi rega rega ave 0.25 ~ 0.3mm akakura pane chidimbu chaicho.
5. Zvakanakisisa kuti urege kuva nemakomba munzvimbo iyo COB inoda kuzadzwa neglue.Kana isingakwanise kudziviswa, iyo PCB fekitori inodiwa kuti inyatso plug izvi kuburikidza nemakomba.Chinangwa ndechekudzivirira kuburikidza nemakomba kubva pakupinda muPCB panguva yeEpoxy kugovera.kune rumwe rutivi, zvichikonzera zvinetso zvisingakoshi. 6. Inokurudzirwa kudhinda Silkscreen logo pane iyo nzvimbo inoda kugoverwa, iyo inogona kufambisa basa rekuparadzira uye kugovera chimiro chekutonga.
Kana iwe chero mubvunzo kana kubvunza, ndapota taura nesu! Here .
Ziva zvakawanda nezvedu! Here.
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