Sign up for our newsletter!

Subscribe form (en)

No spam. Simply good reading. Get your free subscription to Smoltek Newsletter infrequently delivered straight to your inbox.

Your data will be handled in compliance with our privacy policy.

Pexels Jimmy Teoh 1634278

We enable the next-generation capacitors

Advanced nano- and microelectronics are at the core of tomorrow’s hardware engineering. At Smoltek we are pioneering carbon nanotechnology that enables manufacturing of the next-generation solutions for the semiconductor industry. Currently the focus is on a new type of carbon nanofiber-based capacitor that fits in the extremely miniaturized packaging architectures being developed by chip manufacturers.

October 19, 2023

Mini­atur­ized integ­rated cir­cuit pack­aging types are dif­fer­ent types of pro­tect­ive pack­ages that isol­ate semi­con­duct­or com­pon­ents from the effects of phys­ic­al impact and cor­ro­sion. There are sev­er­al types of integ­rated cir­cuit pack­ages, and they become more com­plex in archi­tec­ture the smal­ler they get. 

In 1970, chip man­u­fac­tur­ers man­aged to fit 1,000 tran­sist­ors per chip. Today, over 50 bil­lion have been squeezed in – on a chip the size of a thumb­nail. And this devel­op­ment only con­tin­ues, as more data must be pro­cessed at the same or faster pace. In addi­tion, more func­tions are added on the chip, all while the space in these mini­atur­ized pack­aging types remains the same – or decreases. This devel­op­ment also requires that the capa­cit­ors take up less space and that they can be placed closer to the act­ive chip – and at the same time have the same or bet­ter performance. 

More com­plex chips require a new gen­er­a­tion of capa­cit­ors
New advanced chips con­sist of sev­er­al sys­tems. These chips have more fea­tures and bet­ter per­form­ance. To secure the power sup­ply in these tightly mini­atur­ized cir­cuits and reduce losses in the sys­tems – which is essen­tial for the over­all increases in per­form­ance – the capa­cit­ors must be extremely small and thin, so that they can be placed closer to the pro­cessor than is cur­rently possible. 

This is exactly what Smol­tek is devel­op­ing – a new capa­cit­or tech­no­logy that meets the semi­con­duct­or industry’s demands for next-gen­er­a­tion capa­cit­ors. Our tech­no­logy offers sev­er­al prop­er­ties that are cru­cial for the devel­op­ment of the new capa­cit­or gen­er­a­tion. Among oth­er things, extremely high capa­cit­ance per unit area and extremely low elec­tric­al losses. The capa­cit­ors can also be placed in dir­ect con­nec­tion to the sys­tems they are to support.

The bene­fit for you and me is that we get more and bet­ter func­tions in the mobile phone.

Regards, Smol­tek CNF-MIM capa­cit­or technology

CNF-MIM – Next-gen capa­cit­ors
Based on our pro­pri­et­ary nan­o­tech­no­logy plat­form we have developed a new capa­cit­or tech­no­logy that ful­fills the demands of high-per­form­ance applic­a­tion pro­cessors for the mobile phone mar­ket. We call the product line CNF-MIM – Car­bon Nano Fiber-Met­al Insu­lat­or Met­al capa­cit­ors – a new breed of capa­cit­ors that offers unpar­alleled met­rics for decoup­ling capa­cit­ors. And that fits in the increas­ingly con­fined spaces of next-gen semi­con­duct­or chips.

Today, we at Smol­tek are alone in the world to offer a car­bon nan­ofiber tech­no­logy that enables the com­bin­a­tion of extremely high elec­tric­al per­form­ance in an extremely mini­atur­ized capa­cit­or device. 

Håkan Persson, CEO of Smoltek

The decoup­ling capa­cit­or explained
A decoup­ling capa­cit­or is used in elec­tron­ic devices to reduce high fre­quency noise and dis­turb­ances in the power sup­ply. It is a key device in e.g., applic­a­tion pro­cessors (like the main pro­cessor in a mobile phone). How­ever, to reduce losses at high fre­quen­cies, it is import­ant to be able to place the capa­cit­or as close to the act­ive chip as pos­sible, which requires both extreme thin­ness and high capa­cit­ance dens­ity (which simply explained can be said to be the horsepower of the capacitor).

Our tech­no­logy makes it pos­sible to place the capa­cit­or closer to the pro­cessor, which in turn reduces the losses in the sys­tem and enables bet­ter per­form­ance in the next gen­er­a­tion chip. 

Håkan Persson explains

For the chip man­u­fac­tur­ers, the bene­fit of Smol­tek’s tech­no­logy is that they can place the capa­cit­ors closer to the act­ive chip and thus reduce the losses in the sys­tem. The CNF-MIM tech­no­logy also enables flex­ib­il­ity for the chip man­u­fac­tur­ers, partly in terms of the per­form­ance para­met­ers they want, partly in terms of how they can design the capa­cit­or com­pon­ent in their sys­tem as the tech­no­logy has no restric­tions regard­ing com­pat­ible materials. 

The bene­fit for you and me is that we get more and bet­ter func­tions in the mobile phone.

Mar­ket for CNF-MIM capa­cit­ors
Smol­tek’s CNF-MIM capa­cit­ors mainly com­pete with sil­ic­on-based so-called trench capa­cit­ors. Smol­tek uses the sub­strate to grow the fibers on top, unlike the com­pet­it­ors who use the sub­strate to etch the act­ive area. In oth­er words, Smol­tek has an addit­ive and the com­pet­it­ors a sub­tract­ive pro­cess leav­ing them with the require­ment of using the sub­strate to increase a lar­ger act­ive area. 

Our CNF-MIM tech­no­logy has the poten­tial to offer an ultra-thin capa­cit­or with the same, or high­er, capa­cit­ance dens­ity at a lower cost than our competitors.

Håkan Persson conludes

And as stated, at the IMAPS Device Pack­aging Con­fer­ence in Phoenix, Ari­zona, on March 3, 2020: 

The single most import­ant ques­tion for semi­con­duct­or pack­ages for mobile phones is: How thin can we make it?

Chris­ti­an Hoff­mann, Prin­cip­al Engin­eer at Qualcomm

Put in con­text, this means that the con­tin­ued mini­atur­iz­a­tion of semi­con­duct­or pack­ages needs much thin­ner capa­cit­ors com­pared to what today’s con­ven­tion­al tech­no­logy can handle. 

Sign up for our newsletter!

Subscribe form (en)

No spam. Simply good reading. Get your free subscription to Smoltek Newsletter infrequently delivered straight to your inbox.

Your data will be handled in compliance with our privacy policy.

Related news and insights