Cem Pcb Material
Cem1 pcb composite epoxy materials cem are a group of composite materials typically made from woven glass fabric surfaces and non woven glass core combined with epoxy synthetic resin.
Cem pcb material. They are generally used as a substrate material in pcbs. 94 hb 94 vo 22 f cem 1 cem 3 fr 4. Cem 1 pcb cem 1 printed circuit board manufacturing cem 1 pcb board. They are classified as cem 1 cem 2 cem 3 cem 4 and cem 5.
Your premier cem 1 pcb and cem 3 pcb supplier. Normal pcb base material at high temperature will become softening deforming melting also get much worse performance in the mechanical electrical characteristics. Cem 3 has lower mechanical strength compared to fr4 but it is cheaper than fr4. Composite epoxy materials cem are a group of composite materials typically made from woven glass fabric surfaces and non woven glass core combined with epoxy synthetic resin they are typically used in printed circuit boards.
It is a kind of flame retardant epoxy copper clad plate glass material is generally used in electronics with double sided and multilayer pcb boards. Pcb board is introduced. Detailed parameters and uses are as follows. Cem 1 composite material composed of woven glass fabric surfaces and paper core combined with epoxy resin.
As such when performance aptitudes are taken into account it s crucial to determine which functions need to be compared with one another when selecting pcb materials since material levels correlate to performance levels. In cem pcb material family have other better one cem 3 let s see the difference cem 1 and cem 3. Venture manufactures rigid pcb printed circuit board using the latest materials and technology fr4 without doubt is the most popular material we use daily however customers have low budget applications such as consumer products like toys in this case we suggest customer using cem material there are cem 1 and cem 3 that are most been chose. Tg point for high tg pcb is generally greater than 170.
For medium tg pcb tg point is around 150 c. Cem 3 printed circuit boards are now widely used in automotive electronics telephones household appliances instrumentation and fax machines. Pcb directory has listed. As such pcb materials are selected their lightweight quality in certain industries or for their ability to handle high amounts of power in others.
Cems are light in weight and strong at the same time. In recent years cem 3 is used to replace fr 4 in japan even more than the fr 4 dosage. According to the brand quality level from the bottom to the high classification is as follows. This material has excellent solder heat endurance and is compatible with lead free soldering.
And cem 3 is a new printed circuit substrate material developed based on fr 4. It acts as a binding agent to hold the materials together. Cem 1 is low cost flame retardant cellulose paper based laminate with only one layer of woven glass fabric. Normal pcb material tg point is 130.
Pcb board circuit board pcb substrate materials.
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