Friday, February 23, 2007

SMT repair and rework station covers main tasks

Rework station has four modules, hot air, desoldering, pick and place and soldering, to cover the main tasks for rework and repair of through-hole and SMT printed circuit boards.

JBC's AM 6000 rework station has four modules, hot air, desoldering, pick and place and soldering, to cover the main tasks for rework and repair of through-hole and SMT printed circuit boards. The hot air system will desolder any size of surface mount component and, with the help of a range of special protectors that surround the rework component, it concentrates the heat on the IC while also protecting the remainder of the circuit. Vacuum extractors are either integral with the protectors or, in the case of the smaller protector, mounted on miniature adjustable tripods.

A medium-sized surface mount device can be desoldered in less than 20 seconds.

Furthermore when the micro hot tweezers are specified even very small 0201 components can be soldered and desoldered.

Through-hole components and pads can be cleaned with the system's desoldering iron that has an integrated vacuum pump.

A pick-and-place suction pencil is provided for component positioning and a JBC Advanced 50W general-purpose soldering iron performs the soldering.

Other hand pieces from the Advanced range are compatible with the new AM 6000.

The stands for the soldering iron and desoldering iron detect when the tool is resting and switch the tool to a sleep mode, reducing the tip temperature to extend tip life by up to five times while preventing the tip's tin plating from oxidising.

The stands also have inserters/ extractors for the tip/ cartridge units so that users can change tips quickly and without burned fingers.

Semiconductor market changes into upturn mode

Companies supplying the semiconductor industry have been busy developing new products during the current downturn, and enquiries are on the way up, says company opening new office in Dublin.

Semiconductor market changes into upturn mode Companies supplying the semiconductor industry have been busy developing new products during the current downturn. The increased number of enquiries received by TUV International recently for SEMI S2 assessment suggests that companies are looking to have new models ready for the middle of next year by which time it is expected that the market will be picking up again. TUV International are able to offer Assessment to the requirements of many SEMI guidelines including Semi S2 and SEMI S8, the ergonomics guideline, from our UK office in Birmingham and our new office in Dublin.

We are able to do this in cooperation with our extensive worldwide office network covering Europe, The USA, Far East and Eastern Europe.

Clear acrylic boards help check placement accuracy

Clear acrylic visual placement inspection boards enable alignment checks of surface mount components such as BGAs, micro BGAs, CSPs and flip chips to be made without X-ray or camera systems.

ind out how to register for your free copy now.

The TopLine clear acrylic visual placement inspection boards from Kaisertech enable alignment checks of surface mount components such as BGAs, micro BGAs, CSPs and flip chips to be made without X-ray or placement camera systems. The 100 x 140mm boards are 1.6mm thick and have a sticky surface, with peel-off protective cover, so that components can be temporarily placed without soldering. Turning the board over shows the accuracy of the component placement and if all the solder balls are aligned on the pads.

The components can then be removed for re-use and any adjustments required can be made to the placer and the process repeated if necessary.

These new test boards are part of the TopLine range that includes over 1000 different dummy components that can be used in set-up and prototyping to save the cost of costly real components.

There are also 75 types of practice kits to enable manufacturers to optimise SMD assembly processes.

Typical applications include machine evaluation, acceptance testing, solder training, temperature profiling, re-certification, prototype designs and demonstrations.

Clear acrylic boards help check placement accuracy

Clear acrylic visual placement inspection boards enable alignment checks of surface mount components such as BGAs, micro BGAs, CSPs and flip chips to be made without X-ray or camera systems.

The TopLine clear acrylic visual placement inspection boards from Kaisertech enable alignment checks of surface mount components such as BGAs, micro BGAs, CSPs and flip chips to be made without X-ray or placement camera systems. The 100 x 140mm boards are 1.6mm thick and have a sticky surface, with peel-off protective cover, so that components can be temporarily placed without soldering. Turning the board over shows the accuracy of the component placement and if all the solder balls are aligned on the pads.

The components can then be removed for re-use and any adjustments required can be made to the placer and the process repeated if necessary.

These new test boards are part of the TopLine range that includes over 1000 different dummy components that can be used in set-up and prototyping to save the cost of costly real components.

There are also 75 types of practice kits to enable manufacturers to optimise SMD assembly processes.

Typical applications include machine evaluation, acceptance testing, solder training, temperature profiling, re-certification, prototype designs and demonstrations.

DIN rail mounting supports simplify assembly

DIN rail mounting supports with a 107mm wide Eurocard size offer integral DIN rail mounting foot elements for easy snap-fit assembly while also reducing the number of parts for assembly.

Camden Electronics has extended its range of din rail mounting supports with a 107mm wide Eurocard size that offers integral DIN rail mounting foot elements for easy snap-fit assembly while also reducing the number of parts required during assembly. These features yield significant savings on production costs compared with previous generation and competitive products. The new CIME/E DIN rail mounting supports offer modular construction, easy snap-fit assembly and are suitable for mounting standard Eurocard 107mm wide PCBs.

The range has side elements of 8.25mm and centre elements of 18.5 and 35mm.

These components can be combined to make up interface supports in a wide range of widths including 16.5, 35mm, 51.5 and 53.5mm.

Larger sizes are made up by simply adding more elements.

Compared with competitive products, Camden's new CIME/E DIN rail mounting supports offer significant benefits.

For example, they do not require any brass pins for joining elements together being moulded with strong plastic pins that locate in corresponding holes on adjacent elements.

This reduces the number of components required for assembly and eliminates the need to stock brass pins.

Camden's new 107mm DIN rail supports also feature snap-fit modular construction to enable a strong assembly to be achieved no matter how many elements are used.

Competitive products often rely on friction-fit only which results in an inferior assembly.

The DIN rail mounting supports offer a further time-saving enhancement with elements that incorporate a DIN rail mounting foot in the same moulding, again reducing the number of parts required to make up a complete assembly.

The new CIME/E supports are moulded in self-extinguishing UL94-V0 industry standard green polyamide 66 and are available in grey or black on request.

They are ideal for use in any application where a PCB assembly needs to be din rail mounted including control panels, power supplies, transformers, PLC/photoelectric interfaces, safety and monitoring modules, alarm monitoring, overvoltage protection, data recording, lightning protection, fuseholders, relay modules and optocouplers to name just a few.

Besides saving assembly time and costs, the innovative design of the supports has enabled Camden to reduce the prices of its DIN rail mouldings by around 10 to 15%.

The combination of lower piece part costs, moulded pins and integral foot elements allows customers to make significant savings in production costs.

Camden Electronics' new DIN rail mounting supports are available from the company and its franchised distributors including CPC, Rapid, Arrow Electronics, JPR Electronics and Azcon Component Solutions.

Camden Electronics, based at St.

Albans, Hertfordshire, UK, is a leading manufacturer and supplier of PCB terminal blocks, fuses and fuseholders, sealed lead acid batteries, LEDs, miniature switches, interface modules, enclosures, IC and PLCC sockets and relay bases for the electronics, telecommunications, lighting, and electrical industries.

Cellular system seals electronic control module

A robotised cellular sealing system has been developed for sealing three gaskets onto an electronic control module.

Changes in the economy and uncertainty in some markets change how manufacturers view the capital equipment purchase decision. lean manufacturing practices and cellular plant layouts produce these trends in plant design : * Manufacturers are using smaller, less expensive machines. * Existing machines are sometimes rebuilt or reprogrammed.

* Flexible tooling instead of dedicated tooling enables part changes without capital expenditure.

* Higher volumes can be ramped up by adding machines as needed instead of purchasing larger machines with production capabilities not required.

* Prototyping is accomplished quickly without disrupting current production.

Kern-Liebers recently developed this cellular approach to dispensing for a Tier I electronics supplier.

The connectors in the electronic control module are sealed with three gaskets to protect against dust and moisture.

The gaskets, three millimeters wide and two millimeters thick, are made of single-component silicone.

A KUKA KR 3 robot was chosen for this highly compact system due to its small dimensions and was teamed with the Kern-Liebers DG-M01 modular dispensing system.

The robot controller is linked directly to the Kern-Liebers DG-M01 PLC system.

All dispensing and robotic parameters are entered directly and monitored continuously using a single teach pendant.

A ceramic sealing nozzle makes the system practically wear-free and eliminates the need for cleaning shots during operation.

The double-sliding shuttle table is loaded and unloaded manually.

The UV curing oven is just one meter long and cures the gaskets in only two minutes.

The system was designed by Kern-Liebers USA Dispensing Technology, built in Schramberg, Germany, and commissioned in just one day at the customer's plant in Mexico.

The DG-M01, because of its modular design and control integration capability, simplified the system design process.

Programming the robot to act as the dispensing arm of the DG-M01 was accomplished quickly and accurately.

Streamlining these design considerations reduces the payback time of the system and builds in flexibility to ease any future changes in part design or sealing material.

As the program ramps up, additional dispensing cells can be added.

Model changes are accomplished by changing programs which is not difficult since the Kern-Liebers DG-M01 holds up to 99 programs in memory.