Product category:
Boards and Backplanes
News Release from: Tecan | Subject: Semiconductor leadframes
Edited by the Electronicstalk Editorial
Team on 17 April 2002
High-spec leadframes from a single
supplier
High-tolerance manufacturing technology lies behind the production of exceptionally cost-effective semiconductor leadframes.
High-tolerance manufacturing technology lies behind the production of exceptionally cost-effective semiconductor leadframes, offering unprecedented levels of accuracy along with the ultra-fine features necessary to cater for today's increasingly complex and high-pin-count devices At its single-source facility, Tecan, fabricates the frames using photochemical machining (PCM) and electroforming techniques - employing the most beneficial methods to suit individual end-user requirements
This article was originally published on Electronicstalk on 22 May 2001 at 8.00am (UK)
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Electroformed leadframes are more economical
Tecan Components has developed new manufacturing techniques for the production of semiconductor leadframes, offering significantly higher specifications than traditional techniques.
Semiconductor leadframes made to order
Tecan is now routinely producing high-accuracy bespoke semiconductor leadframes it claims deliver a range of inherent benefits compared with traditional "stamped" products.
Photo-electroforming (PEF), in particular is able to produce exceptionally high pitches and clean edges while maintaining optimum mechanical strength.
Where hermetic sealing is necessary, the company can produce 'post-etched' leadframes to ensure integrity of the glass-to-metal bond, in applications such as hybrid tub packages.
Tecan believes it is the only leadframe supplier to offer a complete -in-house service.
Further reading
Can-on-board solder migration problems solved
Tecan Components has solved a range of problems associated with automated soldering of RFI screening cans/fences onto PCBs with the introduction of the 'Plimsoll line and lattice bridging stencils'.
Labyrinth RFI screening can brings RFI benefits
A labyrinth RFI screening can is an effective one-part board-level alternative for PCB designs which would otherwise require solid metal enclosures or multiple screening cans.
In addition to traditional fabrication and forming areas, it employs a high-specification in-house plating facility.
In particular, this negates the need to out-source plating services and ensures constant BSEN ISO9001 quality control, a critically important element to the provision of cost-effective parts.
A typical recent example, was a leadframe design which was etched, formed, cropped, selectively plated and strip laminated, without leaving the site, fast-delivery was also assured.
PEF is gaining market share as designers become more aware of its capabilities.
Using this technique allows the designer to cost-effectively go beyond the limits of PCM, where necessary.
Here, typical tolerances of +/-5um can be achieved, as opposed to PCM, where 10% of material thickness is the norm.
"From design drawings, a complete ship-to-line capability is offered.
Each need is dealt with individually, using our wide experience and expertise", said sales and marketing director, Noel Cherowbrier.
"We strive to produce a cost-effective case-specific solution with an optimum range of cost-effective benefits, every time.
These photochemically machined and electroformed parts can be produced with extremely tight tolerances to suit today's most demanding requirements and we can produce first-offs very quickly indeed".
Subject to acceptance, a bespoke rapid prototype service offers despatch of first samples within five working days.
In addition to rapid delivery of the first low-volume parts, the service has other benefits.
For example, once a part is adopted, down-the-line production speeds and costs are reduced because the tooling is already in place.
Modifications can be cost-effectively incorporated within the company's powerful CAD system, ensuring any 'knock-on' tooling costs are also minimised.
The following CAD formats are accepted: AutoCad DFX and DWG, GraphiCodeCAM PWK and CWK, DPF, Gerber, HPGL, WMF Vector, CorelDRAW Vector, Postscript and IGES.
All parts are produced within the company's strict ISO9002 quality-control regime.
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