Advanced microwave components(Patented Products)
Microwave miniature
variable attenuator

Microwave miniature
temperature compensation
attenuator

Fixed Attenuator Chip
Fixed Attenuator
Patented technology for the IC design & packaging of microwave semiconductor chips
Microwave FET bias circuit
Low cost dispensing   method for small chips
Resin-packaging method for  chips on substrate
Outstanding R & D team

 The company has an outstanding R&D team constituted by Doctors, professors and experts returned from abroad...[[More]

Product competitiveness
Innovative patented technology,excellent RF characteristics, competitive cost are the highlights of Yantel products...[more]
National science & Technology programs
 Our Temperature Compensation Attenuator Project has been recognized as... [More]
advanced manufacturing facilities and RF test equipments
Yantel is well equipped with advanced manufacturing facilities for...[More]
Central applications
Power Amplifier、Base station、WLAN (2.4GHz or 5.8GHz)、WiMAX、Mobile communication、Optical Transceiver Module ...[More]


Frequency range:30MHz to multi-GHz
Resin-packaging Method of Low Cost and High Yield for Large Scale Packaging on Substrates
patented technology
About the invention patent
  The present invention relates to a packaging method using resin to package bare chips or semiconductor components on organic substrates and composite dielectric substrates. The method is suitable for large scale, low cost and high yield packaging and is used in the packaging of electronic components, particularly in MCM and SIP packaging that widely used in communications, radar, navigation and home appliances. The present invention has conquered the difficulty that the conventional organic and composite dielectric substrates are prone to deform or split when being heated and can replace the expensive ceramic substrates widely used nowadays.
Technological innovations
The present invention has conquered the difficulty that the conventional organic and composite dielectric substrates are
 prone to deform or split. After high-temperature molding of the components packaged, the resin will not split or deviate
 from, but tightly attach to the substrates with different CTEs.
The resin will tightly attach to the organic substrates or composite dielectric substrates even though the CTEs of the resin
 are quite different from the substrates.
Competitive edge & commercial values
It conquers the difficulty that the conventional organic and composite dielectric substrates are prone to deform or split
 when being heated. It provides very potential application value and market outlook for the packaging using resin of
 semiconductors on organic substrates and composite substrates that are prone to deform when being heated.
It is particularly suitable for MCM and SIP packaging widely used nowadays. Expensive ceramic substrates of which the
 fabrication process is complex are mostly used when MCM and SIP packaging are for HF applications. The present
 invention uses organic substrates and composite dielectric substrates having HF characteristics to manufacture a new
 generation microwave semiconductor products having advantages of low cost, high yield and good RF characteristics to
 replace those semiconductors packaged using resin on ceramic substrates.
It is suitable for large scale packaging using resin
It is suitable for cost-effective and high yield packaging using resin.
The below RF microwave semiconductor products can be packaged when the present invention is used:
Power amplifier
LNA
Preamplifier
Downconverter
High-density MCM modules
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