In this article we present both a relatively new and innovative family of packages that is suitable for medium pin count needs and an innovative method for fabricating the substrates for such a package.
With respect to lead count, this packaging family is positioned between BGAs and "standard" QFN with single rows of pads. The package is characterized by the extreme design flexibility in terms of I/O count, location and shape, allowing a wide range of customization only limited by PCB layout constraints.
Are you looking for a faster, more fool-proof leadless rework method? The new BEST StencilMate&trade process is an answer to your QFN and LGA rework problems. It allows even the beginning repair technician to reliably and quickly replace leadless device packages such as QFNs or LGA packages. Alignment is simple with the edges of the stencil being "squared up" with the sides of the package thereby eliminating the need to use custom fixtures or frames...
We have a problem child part. Our company was in a pinch and ordered parts from a broker that had an old date code. The leads are very oxidized, and our reflow process is comprimised... »»
Normally I'm using the following specification for HASL finished PCBs: "The HAL thickness should be in the range 5- 20 um (this is an average value on the whole pad). In any case, in any point of the pad, the HASL thickness must be > 1 um"... »»
The workshop covers x-ray inspection of solder joints for both tin/lead and lead-free terminations and complements our theory online sessions and onsite courses... »»
PLCs (Programmable Logic Controllers) are the brains of your operation. When the PLC is not functioning properly, lines shut down, plants shutdown, even city bridges and water stations could cease to operate.... »»
Looking for an experienced process engineer in the EMS industry. Primary attributes should be in the surface mount process, profiling, tooling, machine troubleshooting... »»
Seeking a position as an engineer or related discipline which offers key participation toward initiatives that utilize state-of-the-art, equipment... »»
SMTA - Surface Mount Technology Association is a non-profit international association of companies and individuals (totalling 4,000) involved in all aspects of advanced electronics assembly, surface mount and related technologies. Membership Info | SMTA Certification | Bookstore
IPC - Association Connecting Electronics Industries is a US-based trade association dedicated to the competitive excellence and financial success of its nearly 2,600 member companies which represent all facets of the electronic interconnection industry, including design, printed wiring board manufacturing and electronics assembly. Membership Info | Training & Certification Programs | Standards & Publications - Online Store
In this article we present both a relatively new and innovative family of packages that is suitable for medium pin count needs and an innovative method for fabricating the substrates for such a package.
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