摘要:
Disclosed herein is a solder paste droplet ejection apparatus including: a nozzle cap forming an appearance and including a heating electric wire provided inside thereof; a nozzle unit formed inside the nozzle cap, spaced apart from the nozzle cap, and surrounded by the nozzle cap; an ejection probe formed inside the nozzle unit, spaced apart from the nozzle unit, and surrounded by the nozzle unit; and a transfer unit formed in a top portion of the nozzle cap and used for a minute movement, wherein a solder paste supplied in a space between the nozzle unit and the ejection probe is ejected in a droplet shape along the ejection probe.
摘要:
Disclosed herein are a solder sheet and a soldering method using the same. The solder sheet includes: a plurality of solder rods arranged to have a uniform height h and an area density N; and a support having an adhesive formed on one surface thereof and supporting the plurality of solder rods such that one end of each of the plurality of solder rods is attached to be perpendicular to the surface on which the adhesive is formed. Solder bumps can be formed on soldering portions of the substrate by using the solder sheet through a single process without a mask, and thus, the process can be simplified, costs can be reduced, and a defect rate can be lowered, thereby enhancing reliability.
摘要:
Disclosed herein are a multilayer ceramic condenser and a method for manufacturing the same. The multilayer ceramic condenser includes inner metal electrode layers formed within a magnetic layer, and conductive layers each formed between the inner metal electrode layers, and a method for manufacturing the same.According to the present invention, a contact between the inner metal electrode layers in the multilayer ceramic condenser can be prevented, thereby reducing the manufacturing loss due to occurrence of short circuits and improving thermal stability, by forming an ultrathin conducting layer with a thickness of about 10 nm or less between the inner metal electrode layers. Therefore, the multilayer ceramic condenser can be ensured to have excellent reliability to meet the demands of markets requesting a high-capacity multilayer ceramic condenser (MLCC) having high performance, small size, and light weight.
摘要:
There are provided a multilayer thin film for a ceramic electronic component and a method of manufacturing the same. The multilayer thin film includes a substrate; and a ceramic layer and a metal layer alternately formed on at least one of upper and lower surfaces of the substrate, wherein at least one of the ceramic layer and the metal layer has a height corresponding to a thickness of at least one of a plurality of particles arranged on a plane. With the multilayer thin film for a ceramic electronic component, the number of layers increases and a distance between electrodes decreases, whereby capacitance may increase.
摘要:
A wafer level encapsulation chip and an encapsulation chip manufacturing method. The encapsulation chip includes a device substrate, a circuit module mounted on the device substrate, a bonding layer deposited on a predetermined area of the device substrate, a protection cap forming a cavity over the circuit module and bonded to the device substrate by the bonding layer and encapsulation portions formed on predetermined areas of the bonding layer and the protection cap. Thus, the present invention can minimize damages to a chip upon chip handling and prevent moisture from being introduced into the inside of the chip.
摘要:
A wafer level package for a surface acoustic wave device and a fabrication method thereof include a SAW device formed with a SAW element on an upper surface of a device wafer; a cap wafer joined on an upper part of the SAW element; a cavity part housing the SAW element between the cap wafer and the SAW device; a cap pad formed on an upper surface of the cap wafer; and a metal line formed to penetrate through the cap wafer to electrically connect the cap pad and the SAW element, the device wafer and the cap wafer being made of the same materials.
摘要:
A packaging chip in which a circuit module is packaged and a method of packaging a circuit module are provided. The packaging chip includes a base wafer; a circuit module on the base wafer; a packaging wafer having a cavity and combined with the base wafer so that the circuit module fits inside the cavity; a connecting electrode connecting upper and lower surfaces of the cavity; and a seed layer between the connecting electrode and the packaging wafer. The method includes etching a lower surface of the packaging wafer to form a cavity, stacking a metal layer in an area of the lower surface, combining the base wafer with the packaging wafer, polishing the packaging wafer, forming a viahole through the packaging wafer, stacking a seed layer on the packaging wafer, plating the inside of the viahole, removing the seed layer and forming an electrode.
摘要:
A micro package, a multi-stack micro package, and a manufacture method therefor are provided. A micro package according to the present invention includes a device substrate for mounting a devices, being a circuit module; a protection cap for protecting the device; bonding substances which, formed by patterning on predetermined areas on the device substrate, bond the device substrate and the protection cap; layers formed on a portion of the device substrate and a portion of the protection cap and exterior sides of the bonding substances; vias which are formed by etching away another portion of the protection cap, and electrically connected to an upper surface of the device substrate through the bonding substances; under barrier metals (UBMs) formed on the vias; and solder bumpers, being connection terminals for an external signal, formed on the UBMs. As stated above, the present invention has advantages of guaranteeing the hermetical sealing since the above layers prevent moisture absorption from outside at the same time of lowering possibility of damages to the device inside the package since the processing temperature drops below 150° upon wafer bonding due to the use of the polymer substance as a bonding substance.
摘要:
A wafer level encapsulation chip and an encapsulation chip manufacturing method. The encapsulation chip includes a device substrate, a circuit module mounted on the device substrate, a bonding layer deposited on a predetermined area of the device substrate, a protection cap forming a cavity over the circuit module and bonded to the device substrate by the bonding layer and encapsulation portions formed on predetermined areas of the bonding layer and the protection cap. Thus, the present invention can minimize damages to a chip upon chip handling and prevent moisture from being introduced into the inside of the chip.
摘要:
A micro package, a multi-stack micro package, and a manufacture method therefor are provided. A micro package according to the present invention includes a device substrate for mounting a devices, being a circuit module; a protection cap for protecting the device; bonding substances which, formed by patterning on predetermined areas on the device substrate, bond the device substrate and the protection cap; layers formed on a portion of the device substrate and a portion of the protection cap and exterior sides of the bonding substances; vias which are formed by etching away another portion of the protection cap, and electrically connected to an upper surface of the device substrate through the bonding substances; under barrier metals (UBMs) formed on the vias; and solder bumpers, being connection terminals for an external signal, formed on the UBMs. As stated above, the present invention has advantages of guaranteeing the hermetical sealing since the above layers prevent moisture absorption from outside at the same time of lowering possibility of damages to the device inside the package since the processing temperature drops below 150° upon wafer bonding due to the use of the polymer substance as a bonding substance.