Never Buy Maxim (again)

Has your wife been catching on to you, slow man? Your rundown seems like a catharsis for you.

I wonder what that was intended to mean?

My mother just died, and my kidney stone has been lithotripted into a very small pieces, which also seemed to turn off my right kidney for three days.

Losing a parent - or what was left of her at 95 - probably qualifies as catharsis, but I don't need purification or cleansing to find an excuse to be rude about krw who must rate as the most despicable non-contributor to this usegroup.

He doesn't like me much either.

1. If you need parts fast, buy them with same day service.
2. If you had a buyer, they go thru distribution and can expedite. Purchasing volume speaks louder than online sample requests.
3. You ought to know parts with ultra low capacitance are easy to blow with capacitive discharge currents exceeding ESD clamp diode rating and possibly speed,... ESD speeds of pico seconds can be faster than diode response

.... especially charged objects near carpets

No. I'll look it up. ...Jim Thompson

Bill Sloman wrote

G > Has your wife been catching on to you, slow man? BS > I wonder what that was intended to mean? It was open ended. G > Your rundown seems like a catharsis for you. BS > My mother just died, and my kidney stone BS > has been lithotripted into a very small BS > pieces, which also seemed to turn off BS > my right kidney for three days. BS > BS > Losing a parent - or what was left BS > of her at 95 - probably qualifies BS > as catharsis, but I don't need BS > purification or cleansing to find BS > an excuse to be rude about krw who BS > must rate as the most despicable BS > non-contributor to this usegroup. BS > BS > He doesn't like me much either. Slow Man: When avowed socialists from other countries start manipulating information to try to sell Socialism to people in the USA, we don't like it. Over in misc.legal there is a Socialist who moved to the USA from Canada but then squatted here in the USA for 30+ years without becoming a US citizen, putting out a press release raving about how the Patriot Act made his life difficult. He is as rabid and arrogant as you are about his sales pitch for Socialism. He once posted a story about how he had a dilemma about being drafted for the Vietnam war. It was a complete lie because he turned 18 several years after the draft ended. He had used quite an array of name variations both on and off the internet, so I looked up his court records. It turns out that he apparently never uses his correctly spelled name, (a common trick deadbeats use) and his wife had four dogs without vaccinations and without licenses. It seems strange that a Socialist and a true believer in the STATE would have trouble vaccinating and licensing their dogs. He wrote all kinds of online tracts promoting Socialism but prefers to conceal that past in his ongoing posting to usenet. He STRONGLY denies his actual identity even though it's really not a secret. Like you, he thinks quite highly of his own intellectual prowess and considers himself to be superior to everybody else. I see stunning similarities between you two that begin with you both being so willing to push Socialist opinions on US politics without being US Citizens. Your career hasn't been stellar, lately, but I don't think he ever produced diddly. I ask him over and over why he ever left the socialist paradise of Canada to squat for 30+ years in the US without becoming a citizen. He never answers. Somebody back in 2003 asked him why he squatted in the US for 30 years without becoming a US citizen and his only answer was that it was his personal choice. I know that Jim Thompson thinks that this usenet group is dominated by left wing posters, but it's not as left wing dominated as the rest of usenet is. My personal belief about why usenet is so leftwing started a few years back with a poster here in sed by the name of Green Xenon, who admitted to having Aspergers and even has an online "manifesto" describing why he desires to PUNISH society in general. I've come to the conclusion that usenet is stuffed to the gills with Aspies, people with Aspergers, which explains LOTS of behaviors I see on usenet in general. I see two other demographics that dominate on usenet in general. Rabid hateful atheism and Rabid left wing political views.

I don't have a degree and I'm hardly the most competent hobbyist, but maybe I could work there.

Why would I purchase volumes of this part?

--

John Larkin Highland Technology, Inc

jlarkin at highlandtechnology dot com

Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom laser drivers and controllers Photonics and fiberoptic TTL data links VME thermocouple, LVDT, synchro acquisition and simulation

Perhaps you should written "I don't have a degree and I'm hardly the most competent hobbyist, so I'm sure I could work there."

We should go apply.

"Not getting back to potential customers" is another required skill.

Does that require training? I'm not good at being trained.

Which one? 1980 or 2008 version? ...Jim Thompson

I wouldn't connect the capacitance meter until the circuit was powered up.

I'd be using a 1MHz SMU for such a small capacitance.

The competition would eat you alive if your part didn't meet spec. Again, people who are clueless shouldn't be making low level measurements. It really is an art. [Comment is for the other poster, not Phil.]

Now input capacitance is not likely to be measured at ATE. Those specs are generally GBD (guaranteed by design). If the wafers pass their initial inspection (where the test pattern is tested) and the part passes tests with mins and maxes, you ship it.

The test pattern has devices that are large enough to measure reliably, then you assume everything scales. Most patterns will be able to measure capacitance based on area and fringe. [The fringe test device has lots of fingers to increase the amount of fringe capacitance. The capacitance due to area is subtracted.]

Incoming wafer inspection, at least for analog processes, is an impressive collection of test measurement equipment.

Note that if the wafer fails incoming inspection, that doesn't mean it won't be used in assembly. A product engineer (or design in some cases) can sign off that the out of spec parameters will not effect the quality of the part. For instance, if the epifet is out of spec and you don't use epifets in the design, you are not going to scrap that wafer.

Off the top of my head, if I saw a part with very low input capacitance, I would be trying to determine if they added a bit of input resistance to aid in the ESD structure performance. Not likely, but it would be something to look out for.

Unless you have a test structure, you are not measuring the capacitance of the ESD diodes, but rather whatever is on that pin, which would include the input device. [Most chips only use one diode these days since there is a tendency for boards with mixed supply voltages. Diodes to the positive rail can be a problem if the board designer is sloppy in supply sequencing (which is usually the case).

I don't make useless measurements.

Then again, maybe Maxim apps reads SED and knows who they are dealing with.