摘要:
According to certain embodiments of the invention, a flash memory card is manufactured using COB processes on a PCB panel with multiple micro cards PCB substrates. These micro memory cards are laid out in an array of 3×5 matrixes of micro cards PCB substrates. A method of molding over a PCBA is utilized, contrary to a conventional method of having two or more pieces of package components to tape together. This results in a simpler structure without the notch which enables easier singulation process and the package is moisture resistance. The final product is a single piece versus two or three pieces glued up pieces and would not separate from pieces. The final product has high water and moisture resistance, low cost and fast manufacturing throughput, no seam and aesthetically more appeasing, can stack more layers of flash memory die, and be maximized XY spaces to accommodate larger size flash memory die.
摘要:
A Solid State Drive (SSD) device includes a printed circuit board assembly (PCBA) defining rivet holes, and a support structure including parallel side frame rails defining rivet openings and support platforms for receiving and supporting the PCBA. Compression-mated rivet sets are used to connect the PCBA to the support structure, each rivet set including a female rivet portion and an associated male rivet portion. The PCBA is mounted onto the support structure such that the rivet holes are aligned with the rivet openings of the plurality of rivet openings, and then the rivet sets are mounted and secured using an automatic rivet tool such that each rivet set extends through an associated rivet hole/opening and fixedly engaged such that the PCBA and the support structure are held between end caps of the respective male and female rivet portions.
摘要:
A Solid State Drive (SSD) device includes a printed circuit board assembly (PCBA) defining rivet holes, and a support structure including parallel side frame rails defining rivet openings and support platforms for receiving and supporting the PCBA. Compression-mated rivet sets are used to connect the PCBA to the support structure, each rivet set including a female rivet portion and an associated male rivet portion. The PCBA is mounted onto the support structure such that the rivet holes are aligned with the rivet openings of the plurality of rivet openings, and then the rivet sets are mounted and secured using an automatic rivet tool such that each rivet set extends through an associated rivet hole/opening and fixedly engaged such that the PCBA and the support structure are held between end caps of the respective male and female rivet portions.
摘要:
A low-profile Universal-Serial-Bus (USB) assembly includes a modular USB core component and an external case. The modular USB core component includes a PCBA in which all passive components and unpackaged IC chips are attached to a single side of a PCB opposite to the metal contacts. The IC chips (e.g., USB controller, flash memory) are attached to the PCB by wire bonding or other chip-on-board (COB) technique. The passive components are attached by conventional surface mount technology (SMT) techniques. A molded housing is then formed over the IC chips and passive components such that the device has a uniform thickness. The modular USB core component is then inserted or otherwise combined with an external plastic case to provide a USB assembly. An optional carrying case is disclosed.
摘要:
A dual-personality card reader system supports both USB and micro-SD devices using a card reader and an extended 9-pin USB socket. The card reader includes a PCBA having four standard USB metal contact pads and several extended purpose contact pads disposed on an upper side, components and IC chips covered by a molded case on a lower side, a molded lead-frame connector mounted on the PCBA and including five forward-facing extended purpose pins and eight rear-facing micro-SD connector pins that communicate with the PCBA through the extended purpose contact pads, and a housing including a slot for receiving a micro-SD card such that it communicates with the PCBA through the micro-SD connector pins. The extended 9-pin USB socket includes standard USB contacts and extended use contacts that communicate with the PCBA through the standard USB metal contacts and forward-facing extended purpose pins. The PCBA includes dual-personality electronics for SD/USB communications.
摘要:
A solid state drive (SSD) device includes a printed-circuit board assembly (PCBA), a connector mounted on the circuit board, an open-frame support-type housing including first and second parallel elongated brackets extending along opposing peripheral edges of said circuit board, each bracket including a first connecting structure for securing the circuit board to the housing, and a second connecting structure for connecting the housing to an internal rack frame of a host system. The open-frame support type housing does not include a top cover and a bottom cover, whereby both of said opposing first and second surfaces are exposed by first and second openings. The housing includes optional end rails that form a box-like frame. The elongated brackets are formed using die-cast metal, stamped metal, or molded plastic with copper posts. Optional clamp-type brackets clamp along side edges of the PCBA.
摘要:
A Secure Digital device including a PCBA having passive components mounted on a PCB using surface mount technology (SMT) techniques, and active components (e.g., controller and flash memory) mounted using chip-on-board (COB) techniques. The components are mounted only on one side of the PCB, and then a molded plastic casing is formed over both sides of the PCB such that the components are encased in the plastic, and a thin plastic layer is formed over the PCB surface opposite to the components. The molded plastic casing is formed to include openings that expose metal contacts provided on the PCB, and ribs that separate the openings. The molded plastic casing defines a pre-molded switch slot that facilitates an insert-in switch assembly process for mounting a write protect switch. The write protect switch includes a movable switch button engaged in the switch slot, and a switch cap secured over the switch slot.
摘要:
A USB device including a housing and a protective cap that are slidably and/or pivotably connected together such that the protective cap is able to slide and/or pivot between an open position, in which a plug connector extending from the front of the housing is exposed for operable coupling to a host system, and a closed position, in which the protective cap is disposed over the front end portion of the housing to protect the plug connector. A pivoting/sliding mechanism is provided on the housing and cap that secures the protective cap to the housing at all times, including during transitional movements of the protective cap between the opened and closed positions.
摘要:
A method for fabricating MicroSD devices includes forming a PCB panel having multiple PCBs arranged in parallel rows, with each PCB connected to its neighboring PCBs in each row by relatively narrow connecting bridge pieces, and separated from PCBs of adjacent rows by elongated stamped out blank slots. Passive components are attached by conventional surface mount technology (SMT) techniques. IC chips, including a MicroSD controller chip and a flash memory chip, are attached to the PCB by wire bonding or other chip-on-board (COB) technique. A molded housing is then formed over the IC chips and passive components using a mold that prevents formation of plastic on the upper surface of each PCB. The connecting bridge pieces are then cut using a used to connect each PCB to a PCB panel are then cut using a rotary saw. A front edge chamfer process is then performed.
摘要:
A dual-personality extended USB (EUSB) system supports both USB and EUSB memory cards using an extended 9-pin EUSB socket. Each EUSB device 101 includes a PCBA having four standard USB metal contact pads disposed on an upper side of a PCB, and several extended purpose contact springs that extend through openings defined in the PCB. A single-shot molding process is used to form both an upper housing portion on the upper PCB surface that includes ribs extending between adjacent contact pads, and a lower molded housing portion that is formed over passive components and IC dies disposed on the lower PCB surface. The passive components are mounted using SMT methods, and the IC dies are mounted using COB methods. The extended 9-pin EUSB socket includes standard USB contacts and extended use contacts that communicate with the PCBA through the standard USB metal contacts and the contact springs.