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HIGH-SPEC LEADFRAMES FROM SINGLE SUPPLIER
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, Weymouth based Tecan, fabricates the frames using photo-chemical machining (PCM) and electroforming techniques - employing the most beneficial methods to suit individual end-user requirements. 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. 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 ISO 9001 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 +/-5 micron 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 photo-chemically 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.
Tecan believes it is the only leadframe supplier to offer a complete -in-house service. 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 ISO 9001 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 +/-5 micron 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 photo-chemically 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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