Gawo loyamba pakulandila chip kungakhale chigamba; a TO imaphatikizapo chigamba chomwe kutentha kumapita ku TO socket, chip chomwe LD chimafika pamadzi otentha, ndi backlight PD;
Kuyika kwachindunji kungakhale kosiyana kwambiri: chinthu chomwe chiyenera kulumikizidwa nthawi zambiri chimakhala LD / PD chip, kapena TIA, resistor / capacitor; kuyikako kutha kuchitidwa pa sinki ya aluminium nitride kapena mwachindunji pa PCB; kuyika Eutectic kuwotcherera kapena zomatira conductive angagwiritsidwe ntchito; chigambacho chimangofunika makumi kapena mazana a ma microns olondola, monga TIA, resistors, ndi kulondola kwapang'onopang'ono, monga kuwotcherera kwa flip-chip.
Tanena zonsezi, chigamba ndi chiyani kwenikweni? Sipakuwoneka kuti pali tanthauzo lokhazikika. Komabe, zikhoza kuwoneka kuchokera ku zitsanzo zomwe zili pamwambazi kuti ali ndi chinthu chimodzi chofanana: chipangizocho chimagwiritsidwa ntchito kuyika ndi kukonza thupi loyika pa chonyamulira ndi kulondola kwina kuti akwaniritse ntchito inayake. (Bwanji mugwiritsire ntchito zida? Ndikuganiza kuti njira yoyikamo yomwe ingadzipangire yokha imatchedwa chigamba, apo ayi chitha kutchedwa kulumikiza pamanja.) Kutengera mfundo yodziwika bwino iyi, ndafotokozera mwachidule zinthu zinayi zofunika pa chigamba: thupi loyika, the chonyamulira , Njira yokhazikika, kulondola. Ndipo chonyamulira chomwe chimagwiritsidwa ntchito, chomwe chimasankhidwa ndi solder, ndi zomwe zimayenera kulondola, zimadalira kwathunthu ntchito yomwe chinthu choyenera kukwera chiyenera kukwaniritsa.
Nayi kuyang'ana kwa kuthekera kosiyanasiyana komwe kuli muzinthu zinayi zachigamba:
Zokwera zambiri ndi LD ndi PD chips.
TIA / Driver / Resistor / Capacitors, monga matupi oyika omwe safuna kulondola kwambiri, amatha kusinthidwa pamanja m'malo mwa voliyumu yayikulu.
Chonyamulira cha chikhalidwe kwambiri ndi AIN kutentha sink; ndi chitukuko cha tchipisi chophatikizika, tchipisi ta PLC ndi tchipisi ta silicon optical zakhalanso matupi wamba okwera, monga tchipisi ta silicon light grating coupling chips, zomwe zimafuna kuti LaMP ikhazikitsidwe pa tchipisi ta silicon optical; PCB ndi zonyamulira wamba mu COB phukusi, monga deta kulankhulana 100G-SR4 modules, PD / VSCEL ndi mwachindunji wokwera pa PCB.
Au80Sn20 alloy ndi wamba LD-mount eutectic solder. Zomatira zowongolera nthawi zambiri zimagwiritsidwa ntchito kuyika PD. Lens yokhazikika ya UV ndi yabwino kwambiri.
Kulondola kumadalira pa ntchito yeniyeni;
Kumene kulumikiza njira ya kuwala kumafunika, kufunikira kolondola kumakhala kwakukulu.
Kuyanjanitsa kwapang'onopang'ono kumafuna kulondola kwambiri kuposa kulumikizana kogwira.
Kuyika kwa LD kumafuna kulondola kwambiri kuposa kuyika kwa PD,
TIA / resistor / capacitor safuna kulondola kulikonse, ingomamatira.
General makhazikitsidwe ndondomeko
Golide-tin eutectic solder chigamba
Chigawo cha conductive phala
Kumene kulondola sikuli kwakukulu, muyenera kungoyang'ana pansi pa CCD kuti mujambule zithunzi za chip ndi gawo lapansi panthawi imodzimodzi, ndikugwiritsanso ntchito zizindikiro kapena chip edges kuti mugwirizane.
Pogwiritsa ntchito flip-chip, ma CCD angapo amafunikiranso, kuyang'ana pansi pa chip ndi pamwamba pa gawo lapansi. Mapulogalamu olondola kwambiri amafunikiranso zilembo zapadera zolumikizirana.
