Based in Wayzata, MN, Nortech Systems Inc. is a full-service
electronics manufacturing services (EMS) provider of wire and cable assemblies,
printed circuit board assemblies (PCBA) and higher-level complete box build
assemblies for a wide range of industries. Markets served include industrial
equipment, aerospace/defense and medical. The company’s expertise includes
medical device, industrial equipment, military/aerospace, machine vision, EMS
contract manufacturing and wire & cable assembly solutions. Additionally,
the company has a wide range of specialized, high-tech facilities used for the
customized design, manufacture, testing and repair of its contract
manufacturing solutions and cable assembly operations.
years, the company has realized that circuit board designs have continued to
become smaller and more densely populated. These designs use many fine-pitch
components on both sides of the circuit. With these changes have come
challenges in achieving adequate solder transfer during the screen printing
process. After analyzing the process, Nortech Systems discovered that one of
the biggest difficulties was providing adequate support for double-sided
to notice a growing failure trend related to the printing process. Solder
bridging, solder voiding and inconsistent printing causing line stoppages
prompted us to start looking at our options for achieving consistent and
efficient printing,” said Michael Fritz, Maintenance Technician at Nortech
Systems. “Several of the options that were tested came with new challenges,
including increased setup times and rubber tooling tips that would wear out and
cause component damage. We also tried reducing array sizes to reduce the need
for boards; however, this option can increase board costs and reduce
these issues, the company looked to Count On Tools for its ezLOAD universal
confided that he was fairly skeptical that the flexible fingers would be
adequate when printed double-sided boards. As a result, Nortech Systems
requested a demo and tested it out in the following applications:
production run of a 14-up assembly array (7 x 2) with 10 mil BGA apertures. This
test resulted in zero defects on the BGA. This was great news and the customer
was pleased with the increased quality of its product.
production run of a 6-up assembly array (6 x 1) with extensive routing and S0-8
package components located at the edges of the circuit that were known to
produce solder bridging. The test run was completed with zero defects on the S0-8
did the company reduce or even eliminate defects, it also decreased the amount
of changeover time with the ease that the ezLOAD printed circuit board (PCB)
support system provides. Nortech Systems has now tested the board support
system on four different assemblies known to have solder voids and solder
bridging and has achieved great results each time.
Tools’ ezLOAD PCB support system not only reduces changeover times, but
improves product build quality, increases revenues by providing significant
cost savings, and can eliminate component damage during the assembly process.
The ezLOAD system features a modular
universal design with only two parts: the support pad and the base. There are
no mechanical functions to fail and it requires no air, electronics or
communication from the user. The support pads feature ESD-safe active grip
technology to securely hold boards during the assembly process. The support pads
are capable of supporting densely populated, double-sided boards. The ezLOAD
support pads are extremely durable because of the soft, flexible design, and
are proven to be reliable after testing in the most hazardous conditions.
Additionally, the ezLOAD base is precision machined from aircraft grade
aluminum alloys to provide a strong and reliable support for boards. The
magnetic locking base enables a quick, easy installation in the user’s machine.
Other base designs are available for machines that feature non-magnetic tables.
importantly, the ezLOAD PCB Support System is affordable compared to
competitive products on the market. Each component can be replaced or upgraded
based on the customer’s specific product, equipment or application. The ezLOAD
PCB Support System is simple to use: Simply place the unit on the equipment’s
board support table and align as required. Multiple units can be arranged in
rows (X & Y) for more support on larger boards. The ezLOAD
PCB Support System is compatible with any SMT equipment, from pick-and-place to
chipshooters, screen printers, dispensers, AOI and more. The ezLOAD system can
be customized depending on machine requirements, specialized components or
specific design application requirements.
ezLOAD system, we continue to notice a significant reduction in defects on
component issues including micro BGAs, fine-pitch ICs and leadless components,”
information about Nortech Systems, contact Michael Fritz at 1120
Wayzata Blvd. East, Suite 201; Wayzata, MN 55391; 952-345-2244; Web site: www.nortechsys.com.