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SIM Card Connectors
December 31, 1969 |Estimated reading time: 4 minutes
The expanded 9162 family of SIM card connectors includes three versions designed to reduce space and provide extra security. The slim, slide-in 9162 connector reduces the overall installed height of the SIM card to less than 1.70 mm. The lockable 9162 connector features a hinged lid with rails to provide alignment for the SIM card. A recess in the molding ensures that the SIM will not lock if the card is inserted incorrectly. The connector has an installed height to the base of the SIM of 1.50 mm. Lifecycles for the cards reach 5,000 mating cycles, with 0.5-A power rating. A combined memory card device integrates SIM and push/push micro SD connectors within a compact structure, minimizing board space yet allowing the two cards to be inserted at the same time. Durability for the SIM connector is 10,000 operations; 6,000 operations for the micro SD part. The connectors are RoHS-compliant and withstand 260°C reflow. AVX Corporation, www.avx.com.
Conformal Coating
Conformal coating Dual-Cure 9481 meets MIL-I-46058C and IPC-CC-830B requirements. Dual-Cure 9481 is free of solvents and formulated for rapid cure when exposed to UV and/or visible light. Short cure times target faster processing, greater output, and lower costs. Ambient moisture will cure areas shaded from light over time. The material has low surface energy to ensure wetting on circuitry, processing materials, and components. Viscosity is optimized for application of 0.001 to 0.003" coating thickness by industry-standard spray systems. Dual-Cure 9481 fluoresces blue when exposed to black light for inspection. DYMAX Corporation, www.dymax.com.
Surface Mount Test Points
The SMOX range of surface mount test points, from Oxley Developments, features a retention mechanism that enhances reliability through low-stress connections. The SMOX range requires a minimum pad size of 2 mm and suits densely populated PCBs. Its design allows rapid connection and disconnection, and the test points can be placed with any pick-and-place machine. The SMOX connection system is available on tape and reel and with a compatible mating socket. Aerco, www.aerco.co.uk.
Pin Insertion Machine
Targeting growing demand for the press-fit technique of electrical contacts in automotive and high-reliability/harsh-environment electronics, the HSP II pin insertion machine is designed for different press-fit procedures at high throughput. The press-fit contacts are supplied to the machine cutting unit as a metal ribbon. An insertion head picks the single pieces up after cutting. The PCB, on an X/Y-cross table, is positioned under the head during the parallel action procedure, which then provides the press-fit step. The modular HSP II machine features a curvilinear controlled insertion head, which handles up to 8 contacts/sec. depending on type. It can insert plain pins and box-shaped contacts. The contact feeding mechanism can be supplied as a “zero exchange system” wherein empty reels are automatically skipped without delay. Programmable insertion angles for each single contact allow for non-orthogonal insertion positions. IPTE, www.ipte.com.
Wave Solder Machine
With 50 × 30" dimensions, the C250, originally designed for the Japanese electronics market, suits high-precision, lead-free, reliability, and space needs. Handling boards up to 250-mm wide in an adjustable corrosion-resistant finger conveyor, the C250 is equipped with automatic defluxing, IR preheating, air-knife cooling, and a low-volume solder pot. The machine is available in either single- or dual-wave configurations for thru-hole and surface mount assemblies. It also includes built-in solder pot loading, a maintenance platform with locking support mechanism, and dial-adjustable wave height control. Manncorp, www.manncorp.com/wave-solder/c250/.
PCB Laminate
A line of proprietary square-weave laminate products can help create better dimensional stability. The laminate products incorporate square-weave glass-core materials, including such glass types such as 101, 1037, 1047, 1067, 1086, 1280, 3070, 3313, 1652, and 6060. This targets better laminate registration control and balanced X/Y in-plane coefficients of thermal expansion (CTEs). ISOLA GROUP S.A.R.L., www.isola-group.com.
Circuit Board Modification Service
A PCB modification service helps assemblers accommodate changes required at BGA component sites to address design errors or updates that mandate changes to the circuit board layout. The procedure is designed as an alternative to redesign and remanufacture of the assembly. It changes circuit paths at a BGA sites to meet new or modified circuit patterns. The BGA component and affected components at the site requiring modification are removed. The affected BGA pad and connecting via are jointed by a short conductor (dog bone) and the existing BGA pad is removed. A shallow groove is milled into the PCB and a replacement BGA pad is bonded in place. A specially designed copper conductor allows for a jumper wire to complete electrical circuit to the modified location. Circuit Technology Center, www.circuitrework.com.
Selective Soldering Software
CamConductor software for RPS selective soldering solutions moved to version 2.5. The software includes a graphical user interface, offline programming, and acceptance of various PCB input types. The updated version is optimized for the Microsoft .Net platform; boasts improved step & repeat, universal pump and axis off-set parameters, vertical and horizontal point and path alignment; toggles from millimeter to inch measurement standards; offers run-time integration with RPS Maestro runtime programs; and is backwards compatible with all prior process programs. Review phases are easier with transparent flux/solder paths, printable final board image and solder path/points, and full Tree view control to inspect attributes of all solder points. RPS Automation LLC, www.rpsautomation.com. SMT